2nd order questions for anatomy Flashcards
What is the common central inntervation for this muscle? what are the other muscles that do internal rotation?
Common innervation: C6-7
Muscles: Latissimus Dorsi (C6-8), Pectoralis major clavicular head (C5-6), subscapularis (C5-6), Anterior deltoid (C5-6), Teres Major (C5-6)
What is the muscle that has the same arterial supply as this muscle?
Teres Major
Arterial supply: subscapular a. and posterior cicumflex humeral a.
Where is the peripheral oigin for this muscle’s innervation? (where does it come off of the brachial plexus)
Anterior rami of C5-7
What other muscle has the same insertion and arterial supply as this muscle?
Middle Trapezius
What is the centeral inntervation of the muscles that are supplied by the same arterial supply and the muscle pictured?
C5
What is the action and arterial supply of this muscle?
Rhomboid minor
arterial supply: Dorsal scapular a.
Action: Elevation, retraction and downward rotation of the glenoid cavity
What is the peripheral origin where the nerve that innervate this muscle comes off of? (on the brachial plexus)
Branch of posterior cord recieving fibers from C6-8
For the arterial supply of this muscle, what is the path blood has to take to get to this artery to supply the muscle? (from the heart to the muscle)
Heart-> Brachiocephalic trunk->subclavian ->axillary->subscapular->throacodorsal
What is the central innervation for this muscle as a whole (both branches)? name the muscles and their innervation
Pectoralis major sternal and clavicular
S: lateral and medial pectoral n. (C8-T1)
C: lateral pectoral n. (C5-6)
What muscle/s insert where this muscle originates (medial portion)?
Upper trapezius
What are the muscles that have the same arterial supply as this muscle?
radial recurrent a. supinator, extensor carpi radialis longus, extensor carpi radialis brevis, & brachioradialis
brachial a. bicep brachii long head, & bicep brachii short head
What other muscles inserts where this muscle originates? What other muscle originates where this muscle originates?
Inserts: Pectoralis Minor
Originates: Coracobrachialis
What is the origin of the peripheral innervation for this muscle ( where does it come off of the brachial plexus)? What other muscles are innervated by the same nerve that innervates this muscle?
(1) Terminal branch of posterior cord
(2) brachialradialis (C5-6), Extensor carpi radialis longus (C6-7), Extensor carpi ulnaris (C7-8), Anconeous (C7-8) and Tricep brachii (all) (C6-8)
What is the arterial supply of this muscle?
Radial artery and anterior interosseous artery
What other muscles originate here?
Pronator teres, flexor carpi radialis, flexor carpi ulnaris, and palmaris longus
