cutaneous sensory

Question 1

musculocutaneous

Answer 1

lateral forearm (lateral cutaneous of forearm)

Question 2

medial cutaneous of arm

Answer 2

• travels medial to axillary vein

- sensory from medial arm

Question 3

medial cutaneous of forearm

Answer 3

• travels superficial to muscles in medial arm

- sensory from medial forearm

Question 4

ulnar

Answer 4

• travels superficial to muscles in medial arm and passes posterior to medial epicondyle. in forearm travels b/n flexor carpi lunaris and flexor digitorum profundus , superficial to flexor retinaculum to enter medial hand
• sensory from skin of medial palm, medial dorsal of hand, digit 5 and medial surface of digit 4

Question 5

median nerve

Answer 5

• travel superficial to muscles in medial arm and passes through cubital fossa with brachial artery. exits cubital fossa by passing deep to flexor digitorum superficialis. in wrist, is medial to flexor carpi radials tendon, passes through carpal tunnel
• sensory from skin of lateral palm, digits 1-3, lateral surface digit 4

Question 6

axillary nerve

Answer 6

• travels on anterior surface of subscapularis, posteriorly through quadrangular space, around surgical neck of humerus
• sensory from skin of super lateral arm

Question 7

radial nerve

Answer 7

• travel on anterior deface of subscapularis and distal tendons of lat. dorsi and heres major. in arm, travels posteriorly b/n long and medial head of triceps. travels anterior to lateral head of triceps and posterior to humerus in radial groove w/ deep artery and veins. pierces lateral inter muscular septum and enters cubital fossa deep to brachioradialis
• superficial branch recipes sensory from skin of posterior arm, forearm and lateral dorsal of hand

Question 8

vagus nerve in neck

Answer 8

• exits cranium through jugular foramen and travels within carotid sheath
• sensory from pharynx, larynx, esophagus, trachea, carotid body and carotid sinus

Question 9

lesser occipital (C2, anterior rami)

Answer 9

-sensory from skin of lateral neck and scalp posterior to auricle

Question 10

great auricular (C2-C3, anterior rami)

Answer 10

• sensory from skin of lateral neck inferior to auricle; skin of auricle

Question 11

transverse cervical (C2-C3, anterior rami)

Answer 11

• sensory from skin of anterior neck

Question 12

supraclavicular (C3-C4, anterior rami)

Answer 12

• sensory from skin of inferolateral neck

Question 13

greater occipital and third occipital (C2 and C3 posterior rami)

Answer 13

• sensory from skin of posterior scalp

Question 14

cutaneous branches of posterior rami of C4-C8 spinal nerves

Answer 14

• sensory from skin of posterior neck

Question 15

phrenic nerve

Answer 15

• branches of anterior C3-C5
• travels across anterior surface of anterior scalene
• somatic sensory from diaphragmatic pleura, mediastinal pleura and pericardium