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

Study sets
Classes
Users

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

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
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…
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
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
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…
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…
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
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…
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
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…
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…
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…
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)
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,…
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
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…
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
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
50 terms
Cell Physiology Synaptic and Neuromuscular Transmission
Synapse
Electrical Synapse
Gap Junctions
Where are gap junctions found?
site where information is transmitted from one cell to anothe…
allow current to flow from one excitable cell to another via…
low resistance pathways between cells
Cardiac Muscle, Uterus, Bladder
Synapse
site where information is transmitted from one cell to anothe…
Electrical Synapse
allow current to flow from one excitable cell to another via…
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…
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…
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
37 terms
6.5 Neurons and Synapses
neurons
myelinated nerve fibres
saltatory conduction
what does saltatory conduction do?
transmit electrical impulses
when nerve fibres are coated along most of their length with…
because myelinated nerve fibres have a myelin sheath around t…
speed up the transmission
neurons
transmit electrical impulses
myelinated nerve fibres
when nerve fibres are coated along most of their length with…
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
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…
7 terms
Lecture 23
Synapse
Electrical
Chemical
Degradation
The junction between nerve cells where a nerve impulse is tra…
Type of Synapse... - Two cells connected by Gap Junctions, which…
Type of Synapse... - There is a physical gap between neurons... - n…
Changing the structure of neurotransmitters so that it become…
Synapse
The junction between nerve cells where a nerve impulse is tra…
Electrical
Type of Synapse... - Two cells connected by Gap Junctions, which…
25 terms
Synaptic transmissions
Cholinergic synapse
Explain how synaptic transmission allo…
Explain why synapses only transmit inf…
Explain how synaptic transmission allo…
A synapse that uses acetylcholine
Neurotransmitter always travels from pre- to postsynaptic mem…
Vesicles for neurotransmitters are only found in the pre-syna…
...
Cholinergic synapse
A synapse that uses acetylcholine
Explain how synaptic transmission allo…
Neurotransmitter always travels from pre- to postsynaptic mem…
43 terms
Synaptic Transmission
Synapse
Electrical Synapse
Gap Junction
Location of Electrical Synapses
Junction where an impulse is transmitted from one neuron to t…
Type of synapse where cells are connected by gap junctions, a…
Hydrophilic pores that allow the direct passage of ions and p…
Autonomic functions (reflexes, cardiac tissue - where you nee…
Synapse
Junction where an impulse is transmitted from one neuron to t…
Electrical Synapse
Type of synapse where cells are connected by gap junctions, a…
23 terms
12.5 Synapses
Presynaptic neuron
Postsynaptic neuron
Synaptic cleft
Electrical synapses
This is how signals arrive at the synapse and it releases a n…
The next neuron that responds
A 20 to 40 nm gap between neurons
Possessed by some neurons, neuroglia, and cardiac and single-…
Presynaptic neuron
This is how signals arrive at the synapse and it releases a n…
Postsynaptic neuron
The next neuron that responds
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…
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…
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
Ch 11 - Nervous Tissue BIO 201 - Part 3
Interneurons
How does the nervous system work?
Subdivisions of nervous system
Properties of Neurons
lie between motor and sensory neurons, ... shuttle signals throu…
sense organs receive info about changes in the body and the e…
excitability... conductivity... secretion
Interneurons
lie between motor and sensory neurons, ... shuttle signals throu…
How does the nervous system work?
sense organs receive info about changes in the body and the e…
Lecture 3: synaptic and neuromuscular transmission
synapses
two basic types of synapses
electrical synapses
examples of electrical synapses
specialized junctions between neurons, or between neurons and…
electrical and chemical
current flows from one cell to another via gap junctions
cardiac muscle and unitary smooth muscle
synapses
specialized junctions between neurons, or between neurons and…
two basic types of synapses
electrical and chemical
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
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…
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
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…
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…
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…
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
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
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
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
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…
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)
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
1 of 10