PNS

cranial nerve I

olfactory

cranial nerve II

optic

cranial nerve III

oculomotor

cranial nerve IV

trochlear

cranial nerve V

trigeminal

branches of trigeminal nerve

ophthalmic, maxillary, mandibular

cranial nerve VI

abducens

cranial nerve VII

facial

cranial nerve VIII

vestibulocochlear

cranial nerve IX

glossopharyngeal

cranial nerve X

vagus

cranial nerve XI

accessory

cranial nerve XII

hypoglossal

cribriform plate, olfactory bulb

olfactory

optic canal, occipital lobe and thalamus

optic nerve

superior orbital fissure, ventral midbrain

oculomotor nerve

superior orbital fissure, dorsal midbrain

trochlear

superior orbital fissure, trigeminal ganglion and pons

opthalmic

foramen rotundum, inferior orbital fissure, infraorbital foramen, trigeminal ganglion and pons

maxillary nerve

foramen ovale, trigeminal ganglion and pons

mandibular nerve

superior orbital fissure, pons-medulla junctions

abducens nerve

internal acoustic meatus to stylomastoid foramen, pons lateral to abducens

facial nerve

internal acoustic meatus, medulla oblangata

vestibulocochlear

jugular foramen, medulla obl0ngata

glossopharyngeal nerve

jugular foramen, medulla oblongata

vagus nerve

jugular foramen, ventral rootlets C1-C5

accessory nerve

hypoglossal canal, medulla oblangata

hypoglossal nerve

sensory: olfactory epithelium for smell

olfactory

sensory: retina for vision

optic

motor: most eye muscles, levator palpebrae, iris, ciliary body; pupil constriction and focusing lens

oculomotor

motor: superior oblique eye muscle

trochlear

sensory: forehead skin, upper eyelid, nose, cornea

opthalmic

sensory: lower eyelid, upper teeth/lip, nasal cavity, cheek

maxillary

sensory: tongue, lower teeth/lip motor: mastication and swallowing

mandibular

motor: lateral rectus eye muscle

abducens

sensory: anterior 2/3 tounge-taste motor: facial expression muscles, lacrimal, submandibular, and sublingual glands

facial

sensory: inner ear for balance, equilibrium, hearing

vestibulocochlear

sensory: posterior 1/3 tongue-taste, upper pharynx, carotid body, carotid sinus-blood pressure; motor: pharynx swallowing, parotid gland salivation

glossopharyngeal

sensory: thoracic and abdominal viscera, carotid sinus-blood pressure, carotid and aortic body; motor: soft palate, pharynx, larynx, heart, lungs, abdominal viscera

vagus

motor: trapezius, sternocleidomastoid

accessory

motor: tongue muscles, swallowing, speech, moving food

hypoglossal

how many spinal nerves are there

31 pairs

how many cervical spinal nerves

8

how many thoracic spinal nerves

12

how many lumbar spinal nerves

5

how many sacral spinal nerves

5

how many coccygeal spinal nerves

1

a network of intersecting nerves carrying sensory and motor info and formed by ventral rami

nerve plexuses

cervical plexus

ventral rami C1-C5, terminal branches (phrenic nerve)

order of brachial plexus structures

ventral rami, trunks, divisions, cords, terminal branches

which ventral rami are involved in the brachial plexus

C5-T1

trunks of brachial plexus

upper, middle, lower

divisions of brachial plexus

anterior and posterior

cords of brachial plexus

lateral, medial, posterior

nerves of posterior cord

axillary nerve, radial nerve

nerves from lateral cord

musculocutaneous nerve, contribution to median nerve

nerves from medial cord

ulnar nerve, contribution to median nerve

ventral rami involved in lumbar plexus 

L1-L4

terminal branches of lumbar plexus

genitofemoral, femoral nerve, obturator nerve

ventral rami involved with sacral plexus

L4-S5

terminal branches of sacral plexus

lumbosacral trunk, superior and inferior gluteal nerves, pudendal nerve, sciatic nerve

what branches from sciatic nerve

common fibular and tibial nerve

what branches from common fibular nerve

superficial fibular nerve, deep fibular nerve

iliacus origin

iliac fossa, ala of sacrum

iliacus insertion

lesser trochanter of femur

iliacus action

flexes thigh, flexes trunk

psoas major origin

transverse process of t12-l5

psoas major insertion

lesser trochanter of femur

psoas major action

flexes thigh, flexes trunk laterally

quadratus lumborum origin

iliac crest and lumbar fascia

quadratus lumborum insertion

transverse processes of L1-L3

quadratus lumborum action

flexes vertebral column laterally

what innervates diaphragm, pleura, pericardium

phrenic nerve

what innervates deltoid, teres minor

axillary nerve

what innervates triceps brachii, brachioradialis, forearm extensors, supinator, anconeus, abductor pollicis longus

radial nerve

what innervates coracobrachialis, biceps brachii, brachialis

musculocutaneous

what innervates flexor carpi ulnaris, flexor digitorum profundus, dorsal interossei, lumbricals

ulnar nerve

what innervates forearm flexors, pronator teres and quadratus, palmaris longus, flexor pollicis longus

median nerve

what innervates internal oblique, transverse abdominis, cremaster, skin of scrotum

genitofemoral

what innervates quadriceps, iliacus, sartorius, pectineus

femoral

what innervates pectineus (rare), adductor longus, brevis, magnus, gracilis

obturator nerve

what innervates gluteus maximus

superior gluteal nerve

what innervates gluteus medius and minimus, tensor fasciae latae

inferior gluteal nerve

what innervates external genitalia, anus, external anal sphincter

pudendal nerve

what innervates biceps femoris long head

common fibular nerve

what innervates fibularis longus and brevis, foot joints and muscles

superficial fibular nerve

what innervates tibialis anterior, external digitorum longus, hallucis longus, foot joints and muscles

deep fibular nerve

what innervates posterior thigh and leg muscles except biceps femoris short head and adductor magnus

tibial nerve

structure #I

olfactory nerve

structure #II

optic nerve

structure #III

oculomotor nerve

structure #IV

trochlear nerve

structure #V

trigeminal nerve

structure #VI

abducens nerve

structure #VII

facial nerve

structure #VIII

vestibulocochlear nerve

structure #IX

glossopharyngeal nerve

structure #X

vagus nerve

structure #XI

accessory nerve

structure #XII

hypoglossal nerve