BIOL319 Lab 9

number 1

cerebrum

number 2

pons

number 3

medulla

number 4

cerebellum

number 5

spinal cord

number 1

thalamus

number 2

occipital lobe

number 3

pineal gland

number 4

fourth ventricle

number 5

cerebellum

number 6

spinal cord

number 7

parietal lobe

number 8

corpus callosum

number 9

septum pellucidum

number 10

frontal lobe

number 11

hypothalamus

number 12

optic chiasm

number 13

pituitary gland

number 14

pons

number 15

medulla oblongata

number 1

meninges

number 2

molecular layer

number 3

outer granular layer

number 4

pyramidal cells

number 5

gray matter

number 6

inner granular layer

number 7

inner pyramidal cells

number 8

polymorphic cells

number 9

white matter

number 4

pyramidal cells

number 1

neuroglia cells

number 2

pinealocytes

number 1

molecular layer

number 2

purkinje layer

number 3

granular layer

number 4

purkinje cell

number 1

central canal

number 2

dorsal root

number 3

dorsal horn of gray matter

number 4

lateral horn of gray matter

number 5

ventral horn of gray matter

number 6

ventral root

number 7

dorsal median sulcus

number 8

dorsal funiculus of white matter

number 9

anterior commissure

number 10

dorsal root gangion

number 11

lateral funiculus of white matter

number 12

spinal nerve

number 13

ventral funiculus of white matter

number 14

ventral median fissure

number 1

nerve fiber

number 2

neuromuscular junction

number 1

synaptic vesicle

number 2

acetylcholine

number 3

motor endplate

number 4

acetylcholine gated channel

number 5

voltage gated Ca++ channel

number 6

axon terminal

number 7

synaptic cleft

number 1

endoneurium

number 2

perineurium

number 3

axon

number 1

node of ranvier

number 1

frontal horn of lateral ventricle

number 2

third ventricle

number 3

occipital horn of lateral ventricle

number 4

longitudinal cerebral fissure

number 1

corpus callosum

number 2

pituitary gland

number 3

cerebellum

number 4

fourth ventricle

number 5

pons

number 6

medulla oblongata

number 7

sphenoid sinus

number 1

spinal cord

number 2

subarachnoid space

what does this figure depict

meissner’s corpuscle

what is arachnoid matter

middle of three meninges covering the brain and spinal cord

what is the subarachnoid space filled with

cerebrospinal fluid and blood vessels that supply the brain

what type of conduction increases action potential velocity

salutatory (“jumping”)

what are nodes of ranvier

unmyelinated gaps between Schwann cells

what are schwann cells

girl cells which myelin sheaths of the peripheral nervous system are derived from

what do myelin sheaths do

encase axons

axons branch to ____ between axons of motor neurons and skeletal muscle fibers

motor nerve endings (neuromuscular junctions)

what is the function of messenger’s corpuscles

function as light receptors of the dermis and are located within the dermal papillae just below the dermal border

what pieces of the brain are collectively called the brain stem

medulla oblongata, pons, and midbrain

what is the cerebellum dorsal to

the pons and medulla oblongata

what is the molecular layer

the most superficial layer of gray matter which is composed largely of unmyelinated fibers and scattered basket cells and stellate cells

what is the intermediate layer of gray matter filled with

purkinje

what is the deepest layer of gray matter

the granular layer which is rich in granule cells

what is the cerebrum

the largest region of the brain which is divided into right and left cerebral hemispheres

what is the longitudinal fissure

the deep groove which divides the cerebrum

what is a fold in the cerebral cortex called

a gyrus

what is a shallow groove in the cerebral cortex called

a sulcus

what is the corpus callosum

white matter which connects the cerebral hemispheres

what structure does the diencephalon consist

thalamus, hypothalamus, epithalamus

what is gray matter

of the cerebral cortex which forms the outer convoluted surface of the cerebral hemispheres and the foliated surface of the cerebellum

what is white matter

lies deep to the cerebral and cerebellar cortices

what is the cortical gray matter

made of multipolar neuron cell bodies and attendant

what does the molecular layer consist of

mainly dendrites synapsing with cortical neuron axons