peripheral anatomy Flashcards
What are the 3 nerve branches of the trigeminal nerve
ophthalmic, maxillary, mandibular
what does the glossopharyngeal nerve innervate?
oropharynx, soft palate, posterior portion of the tongue, pharyngeal surface of epiglottis
which nerve, when blocked, blocks the gag reflex and posterior pharynx (helpful for nasal intubation)
glossopharyngeal
What 4 things does the SLN innervate?
base of tongue, posterior side of epiglottis, aryepiglottic fold, arytenoids.
The SLN can be blocked by ___ ____
mucosal saturation
What does the RLN innervate?
vocal folds and trachea
what does the cervical plexus innervate?
muscles, joints and skin in the anterior neck
the cervical plexus innervates ventral rami, C__-__
C1-C4
The brachial plexus is divided into what 5 things? (hint:randy travis)
ventral rami(roots), trunks, divisions, cords, branches.
randy travis drinks cold beer
Brachial Plexus: how many of each?
roots, trunks, divisions, cords, branches
5, 3, 6, 3, 4
Brachial plexus: where are the roots, trunks, and divisions found anatomically?
posterior triangle of the neck, supraclavicular
Brachial plexus: where are the cords and branches found anatomically?
axilla, infraclavicular
brachial plexus: what spinal levels do the 5 rami (roots) involve?
C5-T1
brachial plexus: the superior trunk is found at C__, the middle is ___, and inferior is ___
superior C5-C6
middle C7
inferior C8-T1
The trunks of the brachial plexus are enveloped in ____ ____
fascial sheath
The interscalene space emerges between the ___ and ___ scalene muscle
anterior and middle
brachial plexus: injection into the nerve sheath commonly produces what?
complete block of upper extremity
brachial plexus: Of the 6 divisions, 3 are ___ and 3 are ____
ventral (anterior) and dorsal (posterior)
Brachial plexus: each cord divides into __ branches and become ____
2, peripheral nerves
brachial plexus: the lateral cord becomes which two nerves?
musculocutaneous and lateral root of median nerve
brachial plexus: the medial cord because which two nerves?
medial root of medial nerve and ulnar nerve
brachial plexus: the posterior cord becomes which two nerves?
axillary and radial
what is the motor response to radial nerve stimulation
wrist extension, metacaropo-phalangeal extension, thumb abduction
what is the motor response to musculocutaneous nerve stimulation
biceps flexion
which nerve passes into the forearm through the carpel tunnel?
median nerve
what is the motor response to median nerve stimulation
wrist flexion, fingers’ flexion, thumb opposition
what is the motor response to ulnar nerve stimulation
ulnar deviation of the wrist, metacarpo-phalangeal flexion, thumb adduction
the lumbosacral plexus is formed by ventral rami of what spinal levels?
L1-S5
may include T12
iliohypogastric nerve is formed from ___
T12-L1
ilioinguinal nerve is formed from ___
T12-L1
genitofemoral nerve is formed from ___
L1-L2
pudendal nerve is formed from anterior divison of ___
S2-S4
lateral femoral curaneous nerve is from posterior divison of _____
L2-L3
posterior femoral cutaneous nerve is formed from anterior and posterior ____
S1-S3
obturator nerve is from anterior division ___
L2-L4
femoral nerve is from posterior division ___
L2-L4
sciatic nerve is formed by the junction of???
tibial nerve (anterior) L4-S3 (largest) and common peroneal nerve (posterior) L4-S2
what are the 5 nerves that innervate the foot?
common peroneal, saphenous, superficial peroneal, sural, deep peroneal
what is the motor response to superficial peroneal nerve stimulation?
abduction of foot, eversion of foot
what is the motor response to deep peroneal nerve stimulation ?
toes toward calf (dorsiflexion?)
what is the response to tibial nerve stimulation
plantar flexion of foot and toes
inversion of foot
