Anatomy and Physiology- nervous system lab

cell body

nucleus of neuron

dendrites

axon

axon hillock

myelin sheath gaps

myelin sheaths

Axon terminals

Medulla oblongata

pons

Midbrain

folia/cerebellar cortex

arbor vitae

Thalamus

Hypothalamus

pituitary gland

infundibulum

mammillary body

pineal gland

separates frontal and parietal lobes

central sulcus

frontal lobe

occipital lobe

parietal lobe

temporal lobe

separates cerebrum and cerebellum

transverse cerebral fissure

Separates temporal lobe from parietal and frontal lobes

lateral sulcus

separates cerebral hemispheres

longitudinal fissure

pre central gyrus

postcentral gyrus

optic chiasm

olfactory bulb

cerebral hemispheres

lateral ventricles

the ventricle located in the center of the diencephalon

third ventricle

the ventricle located between the cerebellum and the dorsal pons, in the center of the metencephalon

fourth ventricle

connects the third and fourth ventricles

cerebral aqueduct

corpus callosum

dorsal horn

ventral horn

lateral horn

dorsal root ganglion

ventral root

dorsal root

spinal nerve

gray matter

white matter

dorsal funiculus

ventral funiculus

lateral funiculus

central canal

pia mater

arachnoid mater

dura mater

Sensory- carries signals for sense of smell

Olfactory (1) nerve

sensory- carries signals for vision

optic (2) nerve

motor- controls the movement of 4 out of 6 extrinsic eye muscles. controls the iris to change pupil size.

oculomotor (3) nerve

motor- controls movement of 1 out of 6 extrinsic eye muscles.

trochlear (4) nerve

sensory- carries sensations from the face

Motor- controls muscles of master and buccinator

trigeminal (5) nerve

motor- controls 1 out of 6 extrinsic eye muscles

abducens (6) nerve

Sensory- carry taste sensations from the tongue.

Motor- control movement of facial expression muscles

facial (7) nerve

sensory for vestibular- carries signals for balance

Sensory for cochlear- carries signals for hearing

Vestibulocochlear (8) nerve

Sensory- carries signals for taste

Motor- controls muscles for swallowing

glossopharyngeal (9) nerve

Sensory- carries signals for taste

Motor- controls activités of viscera

Vagus (10) nerve

Motor- movement of head and neck. controls trapezius and sternocleidomastoid

Accessory (11) nerve

Motor- movement of tongue

Hypoglossal (12) nerve

Controls sensations in the neck and motor functions in that area. C1-C5

Cervical plexus

innervates the diaphragm. In neck

Phrenic nerve

C5-C8, T1. Sensation and movement of arm and upper shoulder.

Brachial plexus

deltoid and teres minor. in the shoulder.

axillary nerve

closest to pinky finger.

ulnar nerve

Smallest of the three nerves in the arm. between ulnar and musculocutaneous

median nerve

coracobrachialis, biceps brachii, brachialis. lateral to median nerve.

musculocutaneous nerve

Nerve that runs along the thumb side of the arm and the back of the hand.

Radial nerve

L1-L4. abdomen and anterior legs

Lumbar plexus

innervates quadriceps and skin of anterior thigh and medial surface of leg

Femoral nerve

passes through obturator foramen to innervate adductor muscles

Obturator nerve

Arises from L4-S4

- Serves the buttock, lower limb, pelvic structures, and perineum

Sacral plexus

nerve extending from the base of the spine down the thigh, lower leg, and foot. Largest nerve

sciatic nerve

nerves between the ribs

intercostal nerves