Axilla and Brachial Plexus (gross) 11-30-16 Flashcards
The first part of the Axillary artery is between the…. and …. and gives off what branch?
- 1st rib and pec minor
- superior thoracic artery
The 2nd part of the axillary artery is deep to… and gives off what 2 branches?
- Pec Minor
- Thoracoacromial and Lateral Thoracic aa.
The 3rd branch of the axillary a. is between… and gives off what 3 branches?
- Pec Minor and Teres Major
- Subscapular, Posterior and Anterior Circumflex Humeral aa.
What is the trapezius m. innervated by?
CN XI (accessory)
What is the major n. of the anterior arm?
Musculotaneous n.
What is the major n. of the anterior forearm?
Median n.
What is the major n. of the hand?
Ulnar n.
What is the major n. of the posterior arm and forearm?
Radial n.
Musculotaneous n. comes from cord levels… and from which cord? It innervates?
- C5-7
- lateral cord
- coracobrachialis, biceps and 1/2 of brachialis
Median n. comes from what rami? and formed by what cord? Innervates?
- C5-T1
- 1/2 lateral cord and 1/2 medial cord
- most of anterior forearm
Borders of cubital fossa
base- imaginary line
medial- pronator teres
lateral- brachioradialis
Anterior border of axilla sheath
pec major and minor
Posterior wall of axilla sheath
latissimus dorsi, subscapularis and teres major
Medial wall of axilla sheath
serratus anterior
Lateral wall of axilla sheath
inter tubercular sulcus of humerus
