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Study sets matching "term:the synapse = synaptic knob reabsorbs choline from the synaptic cleft and uses it to resynthesize ach"

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Study sets matching "term:the synapse = synaptic knob reabsorbs choline from the synaptic cleft and uses it to resynthesize ach"

10 terms
Synapse
1
2
3
4
Action potential (nerve impulse) arrives at axon terminal of…
Nerve impulse causes the voltage-gates calcium gates to open
Calcium ions enter the cell/cytoplasm of presynaptic knob
Calcium ions causes vesicles to form around the neurotransmit…
1
Action potential (nerve impulse) arrives at axon terminal of…
2
Nerve impulse causes the voltage-gates calcium gates to open
11 terms
Synaptic transmission
1
2
3
4
Action potential arrives at the end of the pre-synaptic cell
Action potential causes the voltage gated Ca+ channels to open
Ca+ diffuses into the cell
Ca+ attaches to the vesicle containing neurotransmitter acety…
1
Action potential arrives at the end of the pre-synaptic cell
2
Action potential causes the voltage gated Ca+ channels to open
8 terms
Neurotransmission and Cessation of Signal
Time from the arrival of a signal at t…
Cessation of Signal involves three steps
Mechanisms to turn off stimulation to…
Neurotransmitter escapes the synapse i…
Synaptic Delay
Diffusion, Reuptake, Degradation
Cessation of signal
Diffusion (cessation of signal)
Time from the arrival of a signal at t…
Synaptic Delay
Cessation of Signal involves three steps
Diffusion, Reuptake, Degradation
19 terms
AP Lecture 28
Diverse actions of neurotransmitters
3 kinds of synapses with different mod…
Excitatory cholinergic synapse
Sequence of action in the excitatory c…
- Some are excitatory ... - Some are inhibitory... - Some effects d…
1. Excitatory cholinergic synapse ... 2. Inhibitory GABA-ergic s…
- ACh is neurotransmitter... - ACh excited some postsynaptic cel…
1. Nerve signal approaching the synapse, opens the voltage-ga…
Diverse actions of neurotransmitters
- Some are excitatory ... - Some are inhibitory... - Some effects d…
3 kinds of synapses with different mod…
1. Excitatory cholinergic synapse ... 2. Inhibitory GABA-ergic s…
14 terms
Synapses
presynaptic neurone
post synaptic neurone
neurotransmitter
synaptic cleft
The neurone before the synapse that releases neurotransmitters.
The neurone after the synapse that contains receptors for neu…
Chemical messengers that cross the synaptic cleft between neu…
The narrow gap that separates the presynaptic neurone from th…
presynaptic neurone
The neurone before the synapse that releases neurotransmitters.
post synaptic neurone
The neurone after the synapse that contains receptors for neu…
11 terms
nerve junctions
define neurotransmitter
define cholinergic synapse
how wide is the synaptic cleft?
describe the specialised featured of t…
a chemical that diffuses across the cleft of the synapse to t…
a synapse that uses acetylcholine as their transmitter substa…
20nm
many mitochondria, a large amount of smooth endoplasmic retic…
define neurotransmitter
a chemical that diffuses across the cleft of the synapse to t…
define cholinergic synapse
a synapse that uses acetylcholine as their transmitter substa…
40 terms
Nervous Tissue Pt 2
Signal Conduction in Nerve Fibers
Single Conduction
Voltage gated channels
Saltatory conduction
For communication to occur,nerve signal must travel to end of…
Depolarization excites voltage-regulated gates immediately di…
<25 in myelin covered regions(internodes)... Up to 12,00 in node…
nerve signal jumps from node to node
Signal Conduction in Nerve Fibers
For communication to occur,nerve signal must travel to end of…
Single Conduction
Depolarization excites voltage-regulated gates immediately di…
18 terms
A&P Lecture 3.5
neurotransmitter diversity
3 kinds of synapses
excitatory cholinergic synapse
EPSP
can be either excitatory or inhibitory, effects dependent on…
excitatory cholinergic synapse, inhibitory GABA-inergic synap…
ACh is the neurotransmitter, ACh excites some postsynaptic ce…
excitatory postsynaptic potential, postsynaptic potential whi…
neurotransmitter diversity
can be either excitatory or inhibitory, effects dependent on…
3 kinds of synapses
excitatory cholinergic synapse, inhibitory GABA-inergic synap…
26 terms
Synaptic Transmission
A neuron may terminate at which three…
Nerves that innervate muscle cells are…
Junctions between a presynaptic neuron…
Two Types of Synaptic Transmission:
1. Another Neuron (Synapse)... 2. A Muscle (Neuromuscular Juncti…
Motor Neurons
Synapses
1. Electrical (gap junctions)... 2. Chemical
A neuron may terminate at which three…
1. Another Neuron (Synapse)... 2. A Muscle (Neuromuscular Juncti…
Nerves that innervate muscle cells are…
Motor Neurons
103 terms
Block 3- Pharm
Efferent
Afferent
Sympathetic Preganglionic neurons
Sympathetics Postganglionic neurons
carry impulses from CNS to effector organs... -Preganglionic neu…
important in reflex regulation and influence efferent action
-Originate in CNS and emerge from thoracic and lumbar regions…
-Originate in ganglia... -Long and end at effector organs
Efferent
carry impulses from CNS to effector organs... -Preganglionic neu…
Afferent
important in reflex regulation and influence efferent action
27 terms
4.7 Transmission across a synapses
A synapse is where
The gap in between 2 neurons is known…
The neurone that carries the impulse t…
The neurone that carries impulses away…
2 neurons functionally meet but do not touch
synaptic cleft (20nm)
presynaptic neurone
post synaptic neurone
A synapse is where
2 neurons functionally meet but do not touch
The gap in between 2 neurons is known…
synaptic cleft (20nm)
27 terms
synaptic transmission and neurotransmitters
synaptic transmission
process of synaptic transmission
synapse
action potential
-the process by which nerve cells communicate with each other…
1. arrival of action potential at presynaptic nerve membrane…
the anatomical site where synaptic transmission takes place
the electric signal that takes part in synaptic transmission
synaptic transmission
-the process by which nerve cells communicate with each other…
process of synaptic transmission
1. arrival of action potential at presynaptic nerve membrane…
slide 28
neurotransmitters are diverse in their…
three kinds of synapses with different…
cholinergic synapse:
sequence of excitatory synapse
-some are excitatory... -some are inhibitory... -some effects depen…
-excitatory cholinergic synapse... -inhibitory GABA-erigic synap…
acetylcholine (ACh) is neurotransmitter... -ACh excites some pos…
-nerve signal approaching the synapse, opens the voltage-gate…
neurotransmitters are diverse in their…
-some are excitatory... -some are inhibitory... -some effects depen…
three kinds of synapses with different…
-excitatory cholinergic synapse... -inhibitory GABA-erigic synap…
27 terms
synaptic transmission and neurotransmitters
synaptic transmission
process of synaptic transmission
synapse
action potential
-the process by which nerve cells communicate with each other…
1. arrival of action potential at presynaptic nerve membrane…
the anatomical site where synaptic transmission takes place
the electric signal that takes part in synaptic transmission
synaptic transmission
-the process by which nerve cells communicate with each other…
process of synaptic transmission
1. arrival of action potential at presynaptic nerve membrane…
17 terms
study guide &/&:'dkdkd
at the site of an action potential, th…
if the resting membrane is -70mV, a hy…
the first step in the generation of an…
opening of sodium channels in the memb…
excess of positive ions inside and excess of negative ions ou…
-80 mV
a graded depolarization brings an area of excitable membrane…
depolarization
at the site of an action potential, th…
excess of positive ions inside and excess of negative ions ou…
if the resting membrane is -70mV, a hy…
-80 mV
61 terms
Nervous Tissue Part II (12.5- 12.6)
Synapse
Presynaptic neuron
Postsynaptic neuron
Synapses in neurons
A nerve signal can go no further when it reaches the end of t…
Releases neurotransmitter. May synapse with a dendrite, soma,…
Responds to neurotransmitter
A neuron can have an enormous number of synapses. Spinal moto…
Synapse
A nerve signal can go no further when it reaches the end of t…
Presynaptic neuron
Releases neurotransmitter. May synapse with a dendrite, soma,…
55 terms
12.5 & 12.6
presynaptic neuron
postsynaptic neuron
synaptic cleft
electrical synapses
neuron before synapse
neuron after synapse
20-40mm gap between neurons
where adjacent cells are joined by gap junctions and ions dif…
presynaptic neuron
neuron before synapse
postsynaptic neuron
neuron after synapse
42 terms
A & P Chapter 12: Nervous Tissue pt. 2
Neural integration
Excitatory post-synaptic potential (EP…
Inhibitory post-synaptic potential (IP…
Reverberating circuit
Ability of neurons to process information, store / recall it,…
Any voltage change in direction of depolarization (to -55mV t…
Makes post-synaptic cell less likely to fire after a neurotra…
Circuit in which an input neuron synapses with another neuron…
Neural integration
Ability of neurons to process information, store / recall it,…
Excitatory post-synaptic potential (EP…
Any voltage change in direction of depolarization (to -55mV t…
54 terms
Synaptic Transmissions and Neural Integration (ch 8)
Electrical synapse
Chemical synapse
neurotransmitter
presynaptic neuron
Nerve impulse transmission directly from one neuron to anothe…
Nerve impulse is transmitted from one neuron to another acros…
synthesized in the cytoplasm of the nerve cell body or the sy…
At a synapse, a neuron that transmits signals to a second neu…
Electrical synapse
Nerve impulse transmission directly from one neuron to anothe…
Chemical synapse
Nerve impulse is transmitted from one neuron to another acros…
60 terms
Neuroscience Test 2 Synaptic Transmission
Synapse
Presynaptic Cell
Postsynaptic cell
Transmission of a signal can result in…
Junction between two neurons. Allows communication from one n…
Neuron carrying action potential toward junction
target cell receiving signal and carries nerve impulse away f…
a depolarization of the postsynaptic cell
Synapse
Junction between two neurons. Allows communication from one n…
Presynaptic Cell
Neuron carrying action potential toward junction
11 terms
Synaptic transmission =- structure of the synapse
How does information travel across a s…
Where is the neurotrasnmitter releaed…
What does the axon of the presynaptic…
What does the presynaptic neurone cont…
by neurotrasnmitters
presynaptic neurone
the synaptic knob.
calcium ion channels
How does information travel across a s…
by neurotrasnmitters
Where is the neurotrasnmitter releaed…
presynaptic neurone
29 terms
Nervous system
Resting potential
Refractory period
Polarised
Action potential
The potential difference or voltage across the neurone cell m…
The short period of time after firing during which it is more…
Membrane with a potential difference across it
A brief reversal of the resting potential across the cell sur…
Resting potential
The potential difference or voltage across the neurone cell m…
Refractory period
The short period of time after firing during which it is more…
55 terms
Lecture 4 Introduction to Synaptic and Neuromuscular Transmission
*Explain the difference between electr…
Chemical synapse explain process ...... -…
Which synapse is Extremely fast and Im…
What of eletrical synapse allows simul…
1.Electrical synapse... Current flows between cells via gap junc…
1. AP in presynaptic cell causes Ca2+ channels to open... 2. Ca2…
Electrical synapse
gap junctions
*Explain the difference between electr…
1.Electrical synapse... Current flows between cells via gap junc…
Chemical synapse explain process ...... -…
1. AP in presynaptic cell causes Ca2+ channels to open... 2. Ca2…
23 terms
transmission across Cholinergic synapses
what neurotransmitter do cholinergic s…
where are cholinergic synapses common?
what is a neuromuscular junction?
what happens if neurotransmitter reach…
acetylcholine
-CNS of vertebrates ... -neuromuscular junctions
where motor neurone and effector meet
cause the muscle to contract
what neurotransmitter do cholinergic s…
acetylcholine
where are cholinergic synapses common?
-CNS of vertebrates ... -neuromuscular junctions
29 terms
Anatomy Chapter 8 Study Guide Objective 1-4
the two major anatomical divisions of…
the central nervous system consists of
the primary functions of the nervous s…
the peripheral nervous system consist…
central nervous system and peripheral nervous system
brain and spinal cord
providing sensation of the internal and external environments…
efferent and afferent
the two major anatomical divisions of…
central nervous system and peripheral nervous system
the central nervous system consists of
brain and spinal cord
172 terms
more of chapter 11 anatomy
somatic motor neurons
somatic motor fibers
motor unit
soma
skeletal muscles are served by nerve cells called ___ ___ ___…
somatic motor neurons called, ___ ___ ___, lead to the skelet…
one somatic motor neuron and each muscle cell it enervates
the cell body of a somatic motor neuron
somatic motor neurons
skeletal muscles are served by nerve cells called ___ ___ ___…
somatic motor fibers
somatic motor neurons called, ___ ___ ___, lead to the skelet…
153 terms
anatomy test 3
thin myofilaments
thick myofilaments
elastic myofilaments
dystrophin
actin, troponin, tropomyosin
myosin
titan
connects endomysium, sarcolemma, and outer myofilament
thin myofilaments
actin, troponin, tropomyosin
thick myofilaments
myosin
24 terms
conduction, synapses, cessation, summation, inhibition, & plasticity
impulse conduction
saltatory conduction
fast Na+ diffusion
presynaptic neurons
unmyelinated fibers
myelinated fibers, voltage gated channels needed for APs- few…
occurs between nodes
have synaptic vesicles with nuerotransmitter
impulse conduction
unmyelinated fibers
saltatory conduction
myelinated fibers, voltage gated channels needed for APs- few…
15 terms
Synapses - F214
Synapse
Synaptic knob
Pre-synaptic neurone
Post-synaptic neurone
A nerve junction occurs between two neurones.
On a neurone which sends the signal from the pre-synaptic neu…
Contains a synaptic knob and sends a signal to the post-synap…
Receives the signal from the pre-synaptic neurone.
Synapse
A nerve junction occurs between two neurones.
Synaptic knob
On a neurone which sends the signal from the pre-synaptic neu…
34 terms
Anatomy Ch. 12-3
Synapse
Almost all synapses are chemical or me…
Electrical synapses exist in places like
Chemical synapse is composed of
A specific location where a neuron is functionally connected…
Chemical
Cardiac muscle and the eye
Presynaptic neuron and postsynaptic neuron
Synapse
A specific location where a neuron is functionally connected…
Almost all synapses are chemical or me…
Chemical
12 terms
synapses structure
what often needs to happen for an impu…
what is the junction between two neuro…
what happens to impulses when they rea…
what is the synaptic cleft?
impulse often needs to be passed between several neurones
synapse
impulses are transmitted across the synapse using chemicals c…
gap which separates axon of neurone from dendrite of next neu…
what often needs to happen for an impu…
impulse often needs to be passed between several neurones
what is the junction between two neuro…
synapse
Power point book nervous nerve physiology
A neuron carrying an impulse to the sy…
The neuron receiving input at the syna…
can the presynaptic neuron stimulates…
If Membrane Potential is at stable val…
presynaptic neuron
postsynaptic neuron
Both stimulate or inhibit....at the synaptic cleft (gap betwe…
Resting Potential -70 mV
A neuron carrying an impulse to the sy…
presynaptic neuron
The neuron receiving input at the syna…
postsynaptic neuron
68 terms
A2 Biology Synapses and Muscles
What do synapses transmit?
What is the name of the gap between 2…
What is the name of the neurone which…
classed as neurone ends in a swollen p…
Information by neurotransmitters
Synaptic cleft
Presynaptic neurone
Synaptic knob
What do synapses transmit?
Information by neurotransmitters
What is the name of the gap between 2…
Synaptic cleft
30 terms
6.5 Vocabulary
Neurons
Dendrites
Myelin Sheath
Node of Ranvier
Nerve cells
Branchlike parts of a neuron that are specialized to receive…
A layer of fatty tissue segmentally encasing the fibers of ma…
A gap between successive segments of the myelin sheath where…
Neurons
Nerve cells
Dendrites
Branchlike parts of a neuron that are specialized to receive…
61 terms
A&P Exam 3
Saltatory Conduct
Synapse
Presynaptic neuron
Postsynaptic neuron
is the reason that myelinated fibers transmit signals 50-60x…
specialized junction between two neurons; single neuron may h…
1st neuron in the signal path that releases neurotransmitter;…
2nd neuron that responds to neurotransmitter
Saltatory Conduct
is the reason that myelinated fibers transmit signals 50-60x…
Synapse
specialized junction between two neurons; single neuron may h…
Anatomy Chapter 8
The two major anatomical divisions of…
The central nervous system (CNS) consi…
The primary functions of the nervous s…
The peripheral nervous system consists…
Central Nervous System (CNS)... Peripheral Nervous System (PNS)
The brain and spinal cord
Monitoring the internal and external environments.... Integratin…
Efferent and Afferent
The two major anatomical divisions of…
Central Nervous System (CNS)... Peripheral Nervous System (PNS)
The central nervous system (CNS) consi…
The brain and spinal cord
24 terms
HA&P Neural Tissue 3
2 types of synapse
electrical synapse
chemical synapse
neurotransmitters
electrical--little to no delay... chemical--may/may not send mes…
presynaptic and postsynaptic cells are linked at gap junction…
involves the release of neurotransmitter... release of neurotran…
excitatory (brings it closer)... inhibitory (farther apart)
2 types of synapse
electrical--little to no delay... chemical--may/may not send mes…
electrical synapse
presynaptic and postsynaptic cells are linked at gap junction…
33 terms
IB Biology Neurons (6.5)
Neurons
Dendrites
Myelin Sheath
Node of Ranvier
Transmit electrical impulses; help with internal communicatio…
Short branched nerve fibers, for examples those used to trans…
Insulating covering surrounding an axon with multiple spiral…
Gap between the myelin deposited by adjacent Schwann cells.
Neurons
Transmit electrical impulses; help with internal communicatio…
Dendrites
Short branched nerve fibers, for examples those used to trans…
25 terms
6.5 Neurons & synapses
occiloscope traces
neuron
nerve impulse
saltatory conduction
graphical display of membrane potentils in neurons with time…
nerve cell
electrical signal
nerve impulse jumps from one node of Ranvier to the next alon…
occiloscope traces
graphical display of membrane potentils in neurons with time…
neuron
nerve cell
17 terms
Nervous tissue
Synaptic cleft
Chemical
Acetylcholine
Regeneration tube
neurotransmitter diffuses across ___ and binds to receptors o…
What kind of synapses are most common? (Neuron to neuron)
What Neutrotransmitter is most common?
Schwann cells and endoneurim form ____, guides growing axon t…
Synaptic cleft
neurotransmitter diffuses across ___ and binds to receptors o…
Chemical
What kind of synapses are most common? (Neuron to neuron)
30 terms
PT6250--Synaptic Function
synapse
presynaptic terminal, knob (bouton), s…
axodendritic
axosomatic
The place where synaptic transmission (neuron "A" using a neu…
Main parts of a chemical synapse
Most common type of synapse
Type of synapse that has a powerful influence
synapse
The place where synaptic transmission (neuron "A" using a neu…
presynaptic terminal, knob (bouton), s…
Main parts of a chemical synapse
30 terms
Empa revision - synapses
Synapse
What do sysnapses do
Synaptic cleft
Pre synaptic neurone
Where the axon of one neurone connects with the dentrite of a…
Use neurotransmitters to send impulses between neurones
The gap between two neurones
The neurone that produces neurotransmitter
Synapse
Where the axon of one neurone connects with the dentrite of a…
What do sysnapses do
Use neurotransmitters to send impulses between neurones
30 terms
Neurotransmitters/Related Messengers
neurotransmitters actions
three different kinds of synapses
cholinergic synapse
SEQUENCE OF A CHOLINERGIC SYNAPSE
-some are excitatory/inhibitory ... -some effects depend on the…
1. excitatory cholinergic synapse... 2. inhibitory GABA-ergic sy…
-ACh is the neurotransmitter
1. nerve signal approaches and opens voltage-gated calcium ch…
neurotransmitters actions
-some are excitatory/inhibitory ... -some effects depend on the…
three different kinds of synapses
1. excitatory cholinergic synapse... 2. inhibitory GABA-ergic sy…
120 terms
Synapses
(1)... AT THE CHEMICAL SYNAPSE, AN ACTION…
synapse
synaptic cleft
presynaptic neuron
...
specialized junction between neurons... -includes a space in the…
space between presynaptic neuron and the dendrites of the pos…
conducts the impulse to the synapse
(1)... AT THE CHEMICAL SYNAPSE, AN ACTION…
...
synapse
specialized junction between neurons... -includes a space in the…
118 terms
Anatomy Chapter 8
The two major anatomical divisions of…
The central nervous system (CNS) consi…
The primary functions of the nervous s…
The peripheral nervous system consists…
Central Nervous System (CNS)... Peripheral Nervous System (PNS)
The brain and spinal cord
Monitoring the internal and external environments.... Integratin…
Efferent and Afferent
The two major anatomical divisions of…
Central Nervous System (CNS)... Peripheral Nervous System (PNS)
The central nervous system (CNS) consi…
The brain and spinal cord
18 terms
Anatomy Test 3 - Synapse
Presynaptic Neuron
Postsynaptic Neuron
Synapses
Synaptic Knob of Presynaptic Neuron
First neuron in signal path, releases neurotransmitter... May sy…
Second neuron in signal path, responds to neurotransmitter
Axodendritic, axiomatic, axoaxonic - all formed by presynapti…
contains synaptic vesicles containing neurotransmitter
Presynaptic Neuron
First neuron in signal path, releases neurotransmitter... May sy…
Postsynaptic Neuron
Second neuron in signal path, responds to neurotransmitter
33 terms
AQA A2 Biology: Synaptic Transmission
What is a synapse?
What is the synaptic cleft?
What is the presynaptic neurone? What…
What does the synaptic knob contain?
a junction between a neurone and another neurone or between a…
the tiny gap between the cells at a synapse
the neurone that releases the neurotransmitter... a swelling cal…
synaptic vesicles filled with chemicals called neuotransmitter
What is a synapse?
a junction between a neurone and another neurone or between a…
What is the synaptic cleft?
the tiny gap between the cells at a synapse
33 terms
6.5 Neurons & synapses (SL/HL)
oscilloscope traces
neuron
nerve impulse
saltatory conduction
graphical display of membrane potentils in neurons with time…
nerve cell
electrical signal
nerve impulse jumps from one node of Ranvier to the next alon…
oscilloscope traces
graphical display of membrane potentils in neurons with time…
neuron
nerve cell
39 terms
chap 12
resting membrane potential
sodium potassium ATPase pump
action potential
threshold
due to unequal distribution of electrolytes... K+ about 40x more…
some K+ leaks out; some Na+ leaks in ... works continuously to r…
only occur where there is a high enough density of voltage-ga…
voltage-gated channels will not activate and produce an actio…
resting membrane potential
due to unequal distribution of electrolytes... K+ about 40x more…
sodium potassium ATPase pump
some K+ leaks out; some Na+ leaks in ... works continuously to r…
15 terms
Nervous Tissue- Nov 18
A synapse where acetylcholine is the n…
Chloride channels are receptors for?
In what type of synapse does Cl- enter…
The neurotransmitter used in an adrene…
cholinergic
GABA
GABA-ergic synapse
norepinephrine (AKA noradrenaline
A synapse where acetylcholine is the n…
cholinergic
Chloride channels are receptors for?
GABA
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