anatomy

ear

the sense organ

brain and spinal cord

the central nervous system includes the

nerves that extend to the outlying parts of the body.. consist of cranial nerves and spinal nerfe

peripheral nervous system

subdivision of peripheral nervous system

autonomic nervous system

forms myelin outside the central nervous system

schwann cell

also know as efferent

motor neuron

branching projecting neuron

nodes of ranvier

groups of wrapped axons

fascicles

touch sheath that coves the whole nerve

epineurium

neurons

axon is a what

neuroglia

special type of supporting cells

neuroglia

astrocytes is what

neurons

sensory

neurons

conduct impulses

neurglia

forms the myelin sheath around central nerve fibers

neuroglia

phagocytosis

neurons

efferent

neuroglia

multiple sclerosis

neurons

neurilemma

two-neuron arc

the simplest kind of reflex arc is an

sensory, interneurons, motor neurons...

three-neuron arcs consists of all three kinds of neurons

receptors...

impulse condition in a reflex arc normally starts in

synapses...

microscopic space that separates the axon of one neuron from the dendrites of another neuron

reflex...

this is the response to impulse conduction over reflex arcs

withdrwal reflex...

contraction of a muscle that causes it to pulll away from an irritating stimulus is known as the

ganglion...

this is a group of nerve cell bodies located in the peripheral nervous system

internuerons...

all of this lies entirely within the gray matter of the central nervous system

knee jerk...

in a patellar reflex, the nerve impulses that reach the quadriceps muscle result in the classic\__________ response

gray matter...

this forms the H-shaped inner core of the spinal cord

do not

nerve impules \____ continually race along every nerve cells surface

increases

when a stimulus acts on a neuron it \______ the permeability of the stimulated point of its membrane to sodium ions

excess

an inward movement of positive ions leaves\______ of negative ions outside

postsnynaptic

the plasma membrane of the \_____ neuron makes up a portion of the synapse

presynaptic

a synaptic knob is a tiny bulge at the end of the \_____ neuron's axon

neurontransmitter

acetylcholine is an example of a \_____

communicate

neurotransmitters are chemicals that allow neurons to \________ with one another

specifically

neurotransmitters are distributed \______ in to groups of neurons

sleep

catecholamines may play a role in\_____

pain

endophorins and enkephalins are neurotransmitters that oinhibit conduction of \_____ impulses

central nervous system, peripheral nervous system

what are the divisions of the nervous system

neurons

these are nerve cells

glia

support cells

neurons

conducts impulses

glia

supports neurons

neurons and glia

what are the two types of cells found in the nervous system

cell body, dendrites, axon

what are the three parts of a neuron

true

true or false: the medulla is part of the brainstem

false

true or false: the containment of centers for speech and memory is a function of the brainstem

false

true or false: cerebrum is part of the diencephalon

hypothalamus

ADH is produced by the

*helps control the heartbeat

*control the constriction and dilation of blood vessels

*helps control the contraction of the stomach and intestines

*it produces releasing hormones that control the release of certain anterior pituitary hormones

The hypothalamus does what

thalamus

this part of the brain helps in the association of sensations with emotions and also aids in the arousal or altering mechanism is what

false

true or false: the cerebrum grooves are called gyri

56-60 pick which one doesn't belong in the group

56-60 pick which one doesn't belong in the group

ventricles. all the others are meninges

*meninges

*pia mater

*ventricles

*dura meter

CSF. all others are arachnoid

*arachnoid

*middle layer

*csf

*cobweb-like

Pia mater. all others refer to the cerebrospinal fluid

*csf

*ventricles

*subarachnoid space

*pia mater

Choroid Plexus. all others refer to the dura mater

*tough

*outer layer

*dura mater

*choroid plexus

Brain tumor. all the others refer to the lumbar puncture

*brain tumor

*subarachnoid space

*csf

*fourth lumbar vertebra

62-69 choose if they are spinal neverves or cranial nerves

62-69 choose if they are spinal nerves or cranial nerves

cranial nerves

12 pairs

spinal nerves

dermatome

cranial nerves

vagus

spinal nerves

shingles

spinal nerves

31 pairs

cranial nerves

optic

spinal nerves

C1

spinal nerves

plexus

regulates body's involuntary functions

autonomic nervous system

motor neurons that make up the ANS

autonomic neurons

conduct impulses between the spinal cord and a ganglion

preganglionic neurons

tissues to which autonomic neurons conduct impulses

visceral effectors

division of ANS

sympathetic system

voluntary actions

somatic nervous system

gray matter of the thoracic and upper lumbar segments of the spinal cord

dendrites and cell bodies of sympathetic preganglion neurons are located in the

false

true or false: sympathetic preganglionic axons pass along the dorsal root of certain spinal nerves

craniosacral

another name for the parasympathetic nervous system is

true

true or false: very few sympathetic preganglionic axons synapse with post ganglionic neurons

response by numerous organs

sympathetic stimulation usually results in

response by only one organ

parasympathetic stimulation frequently results in

83- 92 is it the answer sympathetic control or parasympathetic control

83- 92 is it the answer sympathetic control or parasympathetic control

parasympathetic control

constricts pupils