cns Flashcards
sensory face
trigeminal
external ear
glossopharyngeal
pharyngeal mucosa sensory
glossopharyngeal
touch; stretch
touch - general somatic
stretch - general visceral
carotid body and carotid sinus
glossopharyngeal
carotid sinus, carotid and aortic bodies
vagus
thoracic and abdominal viscera
vagus
larynx and pharynx
vagus
stylopharyngeus (elevates pharynx)
glossopharyngeal
epiglottis
vagus
5 somatic motor function of facial nerve
lacrimal, nasal, palatine, submandibular, sublingual salivary gland
muscles of the tongue
hypoglossal
(CN I)
anosmia - loss of smell
(CN II)
anopsias - loss of vision
(CN III)
Oculomotor nerve palsy - cannot move eye up
Ptosis (dropping upper eyelid)
Diplopia - double vision
(CN IV)
Trochlear nerve damage - double vision, cannot move eye inferolaterally
(CN V)
anesthesia upper jaws - novocain
(CN VI)
abducens nerve paralysis - cannot be moved laterally > internal strabismus
(CN VII)
bell’s palsy
(CN VIII)
vestibular - dizziness, rapid eye movements, loss of balance
cochlear - central deafness
(CN IX)
inability to swallow or perceive taste on posterior 1/3
(CN X)
vagus nerve paralysis - hoarseness, harder to swallow, mobility for digestion
(CN XI)
damage - head turning sideways, difficulty shrugging
(CN XII)
damage - difficulty speaking and swallowing, inability to protrude tongue
CN I synapses in
olfactory bulb
optic nerves converge to form _, synapse in _
optic chiasma
thalamus
innervates iris and ciliary muscle
oculomotor
CN III synapse
ciliary ganglion
CN VII - branches off to innervate two salivary glands
chorda tyampani
afferent proprioceptors return from this muscle
stylopharyngeus
C1 nerve is also called
atlas
contains ventral rami arranges in a simple and segmented pattern
thorax
cell body location of:
dorsal root
ventral root
dorsal root ganglion
ventral gray column (spinal cord)
exceptionally small spinal nerve
T1
subcostal nerve
T12
NOT nerve plexuses
T2-T12 - goes to abdominal and thoracic wall
T OR F: only ventral rami form plexuses
trew
most cervical plexus branches are _
cutaneous nerves
most important nerve of the cervical plexus
phrenic nerve
anterior arm, lateral cutaneous nerve of the forearm distal to elbow
musculocutaneous
medial and posterior to the biceps brachii
median nerve
motor: anterior compartment of the forearm
median nerve
(median nerve) prominent protrusion of muscle by the thumb
thenar eminence
(thenar muscle - opposes thumb)
descends at the medial side of the arm without branching
ulnar nerve
medial epicondyle of the humerus
cubital tunnel (ulnar nerve)
hypothenar and intrinsic muscles
ulnar nerve
run through the surgical neck of humerus
axillary nerve
curves anteriorly at the lateral epicondyle
radial nerve
lateral edge under the brachioradialis muscle
radial nerve
extensor muscles of the upper limb
radial nerve
largest branch from the brachial plexus
radial nerve
Sensory musculotaneous
Lateral forearm
Motor median
Anterior forearm, thenar eminence
Motor ulnar
Fcu, fdp, hypothenar muscles, intrinsic muscles of hand, adductor pollicis
Only muscle that moves thumb no median nerve origin
Adductor pollicis
Axillary sensory
Shoulder joint capsule
Imferior half deltoid muscle
Under brachioradialis
Radial nerve
Radial nerve sensory
Dorsolateral hand
Posterior arm and forearm
Radial motor
Extensor muscles of upper limb