Brachial Plexus: Ch 10 Flashcards
1
Q
lateral pectoral nerve
A
- innervates pectoralis major
- lateral cord
- made of C5,6
2
Q
Median nerve
A
- terminal branch
- has contributions from lateral and medial
- C5-T1 (though rarely C5)
- innervates most ventral antebrachial muscles as well as the thenar muscles of hand
3
Q
Musculocutaneous nerve
A
- terminal branch of the lateral cord
- C5,6,7
- innervates anterior compartment of the arm (flexor)
4
Q
medial pectoral n.
A
- provides innervation to the pectoralis major and minor
- part of medial cord
- C8, T1
5
Q
medial brachial cutaneous nerve
A
- NO MOTOR
- provides cutaneous innervation to medial part of arm
- part of medial cord
- C8, T1
6
Q
medial antibrachial cutaneous nerve
A
NO MOTOR
- provides cutaneous innervation to the medial part of the forearm
- C8, T1
7
Q
Ulnar Nerve
A
- terminal branch of medial cord
- C8 and T1
8
Q
Upper subscapular n.
A
- posterior cord
- innervates subscapularis
C5-T1
9
Q
Thoracodorsal nerve (middle subscapular nerve)
A
- posterior cord, C5-T1
- innervates latissimus dorsi
10
Q
Lower subscapular nerve
A
- posterior cord, C5-T1
- innervates subscapularis and teres major
11
Q
Axillary n.
A
- one of two terminal branches of posterior cord
- C5, C6 - shoulder
- innervates deltoid and teres minor
12
Q
Radial n.
A
a terminal branch of posterior cord
- C5-T1
- innervates all muscles of the dorsal surface of upper limb (all extensors)
13
Q
Dorsal scapular n.
A
- direct from C5
- innervates levator scapulae, rhomboideus major/minor
14
Q
suprascapular nerve
A
formed at junction of C5,6
- innervates the supra and infaspinatus muscles
15
Q
nerve to subclavius
A
- arises from upper trunk
- C5,6
innervates subclavius muscle
