lab exam 2 pt. 2 (nerves)

exercises 15-

Autonomic

Controls actions that occur automatically, includes sympathetic and parasympathetic nervous systems

Sympathetic Nervous System

fight or flight

Parasympathetic Nervous System

rest and digest

Somatic

Actions that occur under conscious control

cytoplasm

axon hilock

axon

Schwann cell

nissl bodies

multipolar neurons

bipolar neurons

unipolar neurons

pyramidal cells

pyramidal cells

■ Triangular cell body

■ Found in the cerebral cortex, amygdala, and hippocampus

■ Plays a role in cognitive functions

Purkinje Cells

Purkinje Cells

■ Some of the largest neurons in the brain

■ Functions in motor coordination

■ Found in the gray matter of the cerebellum

cervical enlargement

dural sheath

subarachnoid space

lumbosacral enlargement

medullary cone

cauda equina

terminal filum

medullary cone

the end of the spinal cord, occurs at about L1

cauda equina

Bundle of nerve fibers branching off the end of the spinal cord

cross section of spinal cord

dorsal horn

gray commissure

ventral horn

posterior median sulcus

central canal

anterior median fissure

posterior median sulcus

posterior horn

gray commissure

lateral horn

anterior horn

anterior median fissure

central canal

dorsal root of spinal nerve

lateral horn

dorsal root ganglion

spinal nerve

ventral root of spinal nerve

pia mater

arachnoid mater

dura mater (dural sheath)

1- dura mater (dural sheath)

2- arachnoid mater

3- pia mater

epidural space

subarachnoid space

denticulate ligament

posterior root ganglion

spinal nerve

nerve structure

fascicle

epineurium

perineurium

unmyelinated nerve fibers

myelinated nerve fibers

endoneurium

myelin

central sulcus

postcentral gyrus

parietal lobe

occipital lobe

cerebellum

spinal cord

precentral gyrus

frontal lobe

lateral sulcus

temporal lobe

pons

medulla

cingulate gyrus

corpus callosum

thalamus

hypothalamus

optic chiasm

pituitary gland