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Study sets matching "nervous system 2"

22 terms
Nervous System-2
Two major divisions
3 major functions of Nervous System
3 Types of Neurons
Nervous tissue (2 types of cells)
Central Nervous System (CNS)... Peripheral Nervous System (PNS)
1) Receives sensory input... 2) Integrates (processes) input... 3)…
1) Sensory receptors detect changes in the environment and pa…
1) Neurons transmit nerve impulses... 2) Neuroglia that support…
Two major divisions
Central Nervous System (CNS)... Peripheral Nervous System (PNS)
3 major functions of Nervous System
1) Receives sensory input... 2) Integrates (processes) input... 3)…
11 terms
Nervous System 2
Neuron
Dendrites
Axons
Sensory Neurons
Nerve cell or commonly called nerve fiber
Branching projections that transmit impulses to the neuron ce…
Projections that transmit impulses away from the neuron cell…
Neurons that transmit impulses to the spinal cord and brain f…
Neuron
Nerve cell or commonly called nerve fiber
Dendrites
Branching projections that transmit impulses to the neuron ce…
14 terms
Nervous System 2
Schwann Cells
Satellite Cells
Neuron
Dendrite
Form the myelin sheath around the axons of cranial and spinal…
Neuroglia cells that enclose the cell bodies of neurons in th…
An individual nerve cell
Branches at the end of a neuron that carry information to the…
Schwann Cells
Form the myelin sheath around the axons of cranial and spinal…
Satellite Cells
Neuroglia cells that enclose the cell bodies of neurons in th…
25 terms
Nervous System 2
meninges
dura mater
meningeal layer
pia mater
3 protective tissue coverings(membranes) that cover & protect…
outermost later, tough, double-layered membrane surrounds ent…
forms outermost covering of brain and continues as dura mater…
innermost membrane, extremely vascularized to provide oxygen…
meninges
3 protective tissue coverings(membranes) that cover & protect…
dura mater
outermost later, tough, double-layered membrane surrounds ent…
39 terms
Nervous System pt. 2
white matter
gray matter
tract
nerve
contains myelinated axons
contains cell bodies, dendrites
a bundle of axons in the CNS
a bundle of axons in the PNS
white matter
contains myelinated axons
gray matter
contains cell bodies, dendrites
25 terms
Central Nervous System 2
parkinson's disease
manifestations parkinson's disease
treat of parkinson's disaese
huntington's disease
neurodegenerative, unknown etiology, some with it develop sub…
progressive loss of neurons in substantia nigra of midbrain,…
relieved by L-dopa
disease of nervous system thta is a progressive hereditary au…
parkinson's disease
neurodegenerative, unknown etiology, some with it develop sub…
manifestations parkinson's disease
progressive loss of neurons in substantia nigra of midbrain,…
27 terms
nervous system 2
mylenated
unmyleniated
MS
Guillian Barre
white matter
gray matter
autoimmune- mylein replaced with scar tissue
viral infection- attacks mylin
mylenated
white matter
unmyleniated
gray matter
73 terms
nervous system 2
reflex
meninges
layers of meninges
dura mater
automatic subconscious response to stimuli
tough membrane covering the brain and spinal cord
dura mater, arachnoid mater, subarachnoid space, pia mater
tough outermost layer with blood vessels and nerves (durable)
reflex
automatic subconscious response to stimuli
meninges
tough membrane covering the brain and spinal cord
35 terms
Nervous System 2
pumps
channels
leak ( passive) channels
chemically gated channels
move ions against their gradients in order to achieve electro…
permit ion movement down gradients (do not require energy)
always open, allow continuous diffusion of specific ion (K, Na)
default position is closed but open when a NT binds to its re…
pumps
move ions against their gradients in order to achieve electro…
channels
permit ion movement down gradients (do not require energy)
29 terms
nervous system 2
major lobes in cerebrum
3 layers of meninges
basal ganglia
reticular formation
frontal-anterior, parietal-behind frontal, occipital-posterio…
dura meter- tough outer layer, white dense CT plus blood vess…
masses of gray matter deep within cerebral hemispheres
scattered through medulla oblongata and pons
major lobes in cerebrum
frontal-anterior, parietal-behind frontal, occipital-posterio…
3 layers of meninges
dura meter- tough outer layer, white dense CT plus blood vess…
16 terms
Cavanaugh Nervous system 2
disorders of myelin sheath
MS
Tay-Sachs
axodendritic synapase
- Multiple Sclerosis (MS)... - Tay-Sachs
- Multiple Sclerosis... - autoimmune disease - antibodies to mye…
- hereditary disorder of infants, usually Jewish... - genetic di…
- axon to dendrite synapse
disorders of myelin sheath
- Multiple Sclerosis (MS)... - Tay-Sachs
MS
- Multiple Sclerosis... - autoimmune disease - antibodies to mye…
37 terms
Nervous System 2
Neural tube
ventricles and central canal
cerebrum, lateral ventricle
hypothalamus, thalamus, third ventricle
a hollow embryonic structure developed from the brain and spi…
hallow cavity of the tube produces
telencephalon
diencephalon
Neural tube
a hollow embryonic structure developed from the brain and spi…
ventricles and central canal
hallow cavity of the tube produces
35 terms
Nervous System Pt. 2
CNS Protection
meninges
dura mater
arachnoid mater
-skull and vertebrae... -meninges: CT membranes wrapped around b…
-dura mater... -arachnoid mater... -pia mater
strong outermost layer
middle layer, spider web look
CNS Protection
-skull and vertebrae... -meninges: CT membranes wrapped around b…
meninges
-dura mater... -arachnoid mater... -pia mater
15 terms
NERVOUS SYSTEM (2)
ganglion
glial cell (neuroglial cell)
gyrus
hypothalamus
collection of nerve cell bodies in the peripheral nervous sys…
supportive and connective nerve cell that does not cary nervo…
sheet of nerve cells that produces a rounded ridge on the sur…
portion of the brain beneath the thalamus; controls sleep, ap…
ganglion
collection of nerve cell bodies in the peripheral nervous sys…
glial cell (neuroglial cell)
supportive and connective nerve cell that does not cary nervo…
41 terms
W2: Nervous System
Orientations: Sagittal, coronal, horiz…
Dimensions: medial, lateral, anterior,…
Breakdown of peripheral nervous systm
Breakdown of central nervous system
-Sagittal: bisects body left and right; the slice... -Coronal/tr…
-Medial: towards the middle... -Lateral: towards the sides... -Ante…
-somatic nervous system for external environment (cranial ner…
-Brain... -spinal cord
Orientations: Sagittal, coronal, horiz…
-Sagittal: bisects body left and right; the slice... -Coronal/tr…
Dimensions: medial, lateral, anterior,…
-Medial: towards the middle... -Lateral: towards the sides... -Ante…
102 terms
Nervous System 2- Lecture
synapse
electrical synapse
chemical synapse
presynaptic neuron
junction at the end of an axon where it connects with the cell
gap junctions join cells and ions diffuse directly from one c…
a neurotransmiter is released to communicate with the next cell
first neuron in the signal path
synapse
junction at the end of an axon where it connects with the cell
electrical synapse
gap junctions join cells and ions diffuse directly from one c…
93 terms
nervous system - week 2
layers of connective tissue
pia mater
arachnoid mater
subarachnoid space
pia, arachnoid, dura mater
thin layer of connective tissue adherent to the surface of th…
located external to the pia mater, more loosely covering the…
space between pia and arachnoid mater, contains CSF which act…
layers of connective tissue
pia, arachnoid, dura mater
pia mater
thin layer of connective tissue adherent to the surface of th…
48 terms
Bio- Nervous System 2
what is the function of the brainstem
what is the function of the pons
what is the function of the midbrain
what does the medulla regulate
several functions, being alert and awake
regulates breathing
coordinates hearing and visual reflexes
heart rate, swallowing, vomiting, resting, digestion
what is the function of the brainstem
several functions, being alert and awake
what is the function of the pons
regulates breathing
Nervous System Health 2
brain stem
central nervous system
cerebellum
cerebrum
Connection between the spinal cord and the upper parts of the…
The brain and the spinal cord.
Part of the brain that coordinates movement.
The largest part of the brain, responsible for thinking and m…
brain stem
Connection between the spinal cord and the upper parts of the…
central nervous system
The brain and the spinal cord.
32 terms
Nervous System 2
Brainstem
Pons
Midbrain
Medulla
survival functions, being alert and awake
regulates breathing
coordinates hearing and visual reflexes
heart rate, swallowing, vomiting, resting, digestion
Brainstem
survival functions, being alert and awake
Pons
regulates breathing
42 terms
Nervous System Day 2
Neurotransmitter release
Neurotransmitters
Neurotransmitter reception
Neurotransmitter fate
when the action potential reaches the axon terminal it trigge…
chemicals that act as signals from a neurons axon terminals t…
neurotransmitters move across synaptic cleft and bind with SP…
in order to end the signal from the neuron, the NT has to som…
Neurotransmitter release
when the action potential reaches the axon terminal it trigge…
Neurotransmitters
chemicals that act as signals from a neurons axon terminals t…
35 terms
nervous system 2
brainstem
pons
midbrain
medulla
survival functions being alert and awake
regulates breathing
coordinates hearing and visual reflexes
heart rate, swallowing, vomiting, resting, and digestion
brainstem
survival functions being alert and awake
pons
regulates breathing
62 terms
Nervous System 2
Cervical Plexuses
Thoracic Nerves
Cervical Enlargement
Lumbar Enlargement
Nerves that form networking by joining with adjacent nerves o…
Are Distributed directly to the struduies they supply in inte…
Nerves supply the upper extremeties.
Nerves supply the lower extremeties.
Cervical Plexuses
Nerves that form networking by joining with adjacent nerves o…
Thoracic Nerves
Are Distributed directly to the struduies they supply in inte…
18 terms
Topic 2: The Nervous System
Central nervous system (CNS)
Peripheral nervous system (PNS)
Glial cells
Membrane potential
-Brain and spinal cord... -Can act as an integration center and/…
-Peripheral nerves... -Send signals to the effectors... -Afferent/e…
Supporting cells... - surround neurons and hold them in place ... -…
Measure of the difference in charge between the cell cytoplas…
Central nervous system (CNS)
-Brain and spinal cord... -Can act as an integration center and/…
Peripheral nervous system (PNS)
-Peripheral nerves... -Send signals to the effectors... -Afferent/e…
43 terms
Nervous System2
Brain Spinal cord
nerves linking CNS to rest of body
glial cells
astrocytes
2 parts of the CNS
what makes up the PNS?
structurally and functionally support and protect neurons
type of cells making up the blood-brain barrier
Brain Spinal cord
2 parts of the CNS
nerves linking CNS to rest of body
what makes up the PNS?
23 terms
Nervous System 2
Cauda Equina
Name of spinal nerves
The spinal cord is encased by
The roots of spinal nerves emerge from
Roots of spinal nerves extending inferior to the spinal cord
cervical, thoracic, lumbar, sacral, coccygeal
vertebral canal
intervertebral foramen
Cauda Equina
Roots of spinal nerves extending inferior to the spinal cord
Name of spinal nerves
cervical, thoracic, lumbar, sacral, coccygeal
42 terms
Week 2- Nervous System
Anatomical Organization of the Nervous…
Functional Organization of the Nervous…
Sensory neurons
Motor Neurons
Central and Peripheral Systems
1. Sensory (Input)... 2. Integrative (Control)... 3. Motor (output)
carries sensory information towards the cell
carries information away from the brain and spinal cord
Anatomical Organization of the Nervous…
Central and Peripheral Systems
Functional Organization of the Nervous…
1. Sensory (Input)... 2. Integrative (Control)... 3. Motor (output)
62 terms
Bild 2 Nervous system
For the survival of species all organi…
mass increases as a function of
the advantages of being a multicellula…
features of a multicellular organism
-stay alive (obtain nutrients and oxygen, get rid of toxins a…
r^3
1) more flexibility in living area (wider selection of habita…
-specialization of cells... -differentiated biological functions…
For the survival of species all organi…
-stay alive (obtain nutrients and oxygen, get rid of toxins a…
mass increases as a function of
r^3
7 terms
Nervous System 2
Cephal
Chiasm
Flacc
Funi
Head
Cross
Flabby
Small cord
Cephal
Head
Chiasm
Cross
25 terms
Nervous system 2
Nervous system
Sensory input
Peripheral nervous system (PNS)
Sensory division
Master controlling and communicating center of the body
Information gathered by processing changing stimuli
Part nervous system outside of the central nervous system
Consists of nerves that convey nerve impulses to the central…
Nervous system
Master controlling and communicating center of the body
Sensory input
Information gathered by processing changing stimuli
8 terms
Nervous System - Lecture 2
depolarization of cell membrane
gated ion channels (3)
voltage gated channels
ligand gated channels
created by an opening of ion channels
1. voltage-gated channels... 2. ligand-gated channels... 3. mechani…
open with change in voltage
open due to binding of ligand to membrane receptor
depolarization of cell membrane
created by an opening of ion channels
gated ion channels (3)
1. voltage-gated channels... 2. ligand-gated channels... 3. mechani…
30 terms
Nervous System 2
Passive Transport
Diffusion
Osmosis
Osmolarity
movement of a substance without the expenditure f energy (ATP…
movement of a substance from an area of high concentration to…
diffusion of a water across a semipermeable membrane from an…
the number of particles it contains
Passive Transport
movement of a substance without the expenditure f energy (ATP…
Diffusion
movement of a substance from an area of high concentration to…
35 terms
Nervous System Midterm #2
Absolute Refractory Period
What does the absolute refractory peri…
What happens when voltage gated Na+ ch…
What does the rate of an AP propagatio…
time from opening of Na+ channels until resetting of the chan…
-ensures that each AP is separate... -enforces one-way transmiss…
neuron cannot respond to another stimulus
Axon Diameter... Degree of myelination
Absolute Refractory Period
time from opening of Na+ channels until resetting of the chan…
What does the absolute refractory peri…
-ensures that each AP is separate... -enforces one-way transmiss…
29 terms
Nervous system 2
Meninges
Dura mater
Arachnoid mater
Pia mater
Consit of 1. Dura mater 2. The arachnoid mater 3. The pia mater
Is a tough two layered connective tissue membrane that forms…
Is located between the dura mater and the pia mater.
Is composed of soft connective tissue which covers the outer…
Meninges
Consit of 1. Dura mater 2. The arachnoid mater 3. The pia mater
Dura mater
Is a tough two layered connective tissue membrane that forms…
19 terms
Central nervous system 2
Symmetrel
Cogentin
Parlodel
Sinemet
Amantadine
Benztropine
Bromocriptine
Levodopa carbidopa
Symmetrel
Amantadine
Cogentin
Benztropine
Nervous System 2
Jumps
Saltatory conduction
Continuous, Salatory
Continuous propagation
If the traveling impulse encounters a section of membrane cov…
This type of impulse travel is much faster than is possible i…
Two method of propagating action potentials are:
Unmyelinated axons (grey matter-CNS) - speed of about 2mph
Jumps
If the traveling impulse encounters a section of membrane cov…
Saltatory conduction
This type of impulse travel is much faster than is possible i…
11 terms
Anatomy 2 Nervous System
Functional Divisions
Anatomical Divisions
Somatic
Autonomic
-autonomic nervous system... -somatic nervous system
-central nervous system... -peripheral nervous system
-voluntary part of the system... -responsible for observable act…
-Involuntary part of the system... -Responsible for life-sustain…
Functional Divisions
-autonomic nervous system... -somatic nervous system
Anatomical Divisions
-central nervous system... -peripheral nervous system
25 terms
BIO 2 Nervous System
Peripheral Nervous System
Central Nervous System
3 types of vertebrate neurons
Sensory neurons
Collects and responds ... Sensory and motor neurons... Somatic NS s…
Brain and Spinal cord... Command center
Sensory neurons... Motor neurons... Interneurons
Carry impulses to central nervous system
Peripheral Nervous System
Collects and responds ... Sensory and motor neurons... Somatic NS s…
Central Nervous System
Brain and Spinal cord... Command center
18 terms
2. Central Nervous System
cardiac center
vasomotor center
respiratory center
swallowing center
controlled by the hypothalamus, this center (found in the med…
this center (found in the medulla oblongata) controls blood p…
works with the pons to control breathing
controls the swallowing reflex (after the voluntary part of s…
cardiac center
controlled by the hypothalamus, this center (found in the med…
vasomotor center
this center (found in the medulla oblongata) controls blood p…
15 terms
Nervous System #2
Multi-infarct dementia
Stroke
Neuroglia
Bradylexic
A brain disorder caused by multiple small strokes
The common term for a cerebrovascular accident
The connective tissue cells of the nervous system
A person who reads slowly
Multi-infarct dementia
A brain disorder caused by multiple small strokes
Stroke
The common term for a cerebrovascular accident
15 terms
nervous system 2
intra/thecal
cerebro/spinal
cerebral
cerebellar
within a sheath
pertaining to the brain and the spinal cord
cavities in the brain that produce CSF are called
pertains to the cerebellum
intra/thecal
within a sheath
cerebro/spinal
pertaining to the brain and the spinal cord
14 terms
Nervous System 2
sensory receptors
exteroceptors
interoceptors
sensation
neurons specialized to detect certain types of stimuli
detect stimuli from outside the body (taste, smell, vision, h…
detect stimuli from inside the body (blood pressure, volume,…
occurs when nerve impulses arrive at the cerebrum
sensory receptors
neurons specialized to detect certain types of stimuli
exteroceptors
detect stimuli from outside the body (taste, smell, vision, h…
27 terms
Health 2 Nervous System
The Nervous System
Two Main Divisions
CNS
PNS
1. Major Control Center... 2. Communication Network... 3. Sense Cha…
-Central Nervous System (CNS) ... -brain & spinal cord ... -Periph…
-command center... -interprets signals ... -outputs info
-gathers info from inside & outside your body ... -made up of ne…
The Nervous System
1. Major Control Center... 2. Communication Network... 3. Sense Cha…
Two Main Divisions
-Central Nervous System (CNS) ... -brain & spinal cord ... -Periph…
179 terms
nervous system ward 2
sensory (afferent)
motor (efferent)
Central Nervous System
Peripheral nervous system
carry signals toward nervous system
carry signals out of nervous sytem
inside the dorsal body cavity
outside the dorsal body cavity
sensory (afferent)
carry signals toward nervous system
motor (efferent)
carry signals out of nervous sytem
8 terms
Nervous system 2
Thalamus
Myelin sheath
Cerebral hemispheres
Neurotransmitters
A mass of gray matter in the diencephalon of the brain. Relay…
To protect the neuron, provide insulation,and increase the sp…
The two halves that the cerebrum is divided into
Chemical released by neurons that may upon binding to recepto…
Thalamus
A mass of gray matter in the diencephalon of the brain. Relay…
Myelin sheath
To protect the neuron, provide insulation,and increase the sp…
45 terms
Nervous system Pt. 2
Homunculus ("little man")
True.
Left hemisphere functions
Right hemisphere functions
Schematic technique to represent motor and sensory cortical r…
True of False? The size of the body area and degree of cortic…
Speech production, analytical processing, sequential processi…
Processing of meaning, Synthesis of verbal and nonverbal info…
Homunculus ("little man")
Schematic technique to represent motor and sensory cortical r…
True.
True of False? The size of the body area and degree of cortic…
20 terms
Nervous system pt. 2
Hemiparesis
Hemiplegia
Paraplegia
Quadriplegia
Weakness or loss of function or sensation on one side of the…
Paralysis (loss of voluntary movement) on one side of the bod…
Paralysis below the waist. No movement in legs
Paralysis below the upper chest. No movement in arms and legs
Hemiparesis
Weakness or loss of function or sensation on one side of the…
Hemiplegia
Paralysis (loss of voluntary movement) on one side of the bod…
60 terms
Central Nervous System 2
limbic system
amygdaloid body
cingulate gyrus
hippocampus
emotional or affective brain. puts emotional responses to odo…
part of limbic system. recognizes angry or fearful facial exp…
part of limbic system. role in expressing emotions via gestur…
along with the amygdaloid body it plays a role in memory
limbic system
emotional or affective brain. puts emotional responses to odo…
amygdaloid body
part of limbic system. recognizes angry or fearful facial exp…
14 terms
Nervous system PRT 2
left hemisphere
right hemisphere
thalamus
relationship with sensory inputs and t…
mathematical and verbal skills, and language
visual images
gateway to the cerebral cortex; all msgs to the cerebral cort…
sensory input from every sense except smell and from all part…
left hemisphere
mathematical and verbal skills, and language
right hemisphere
visual images
10 terms
Nervous system 2
Somatic
Autonomic
Sympathetic
Parasympathetic
Stimulates voluntary muscles
Stimulates involuntary muscles and organs of the body.
Functions under stress- fight or flight
Functions during relaxed conditions
Somatic
Stimulates voluntary muscles
Autonomic
Stimulates involuntary muscles and organs of the body.
10 of 10