2 - Aldridge - Brachial Plexus

Question 1

Order of Brachial Plexus from Medial to Lateral

Answer 1

Roots

Trunks

Divisions

Cords

Branches

Randy Travis Drinks Cold Beer

Question 2

Nerves of Brachial Plexus

Answer 2

C5 - C8, T1

Question 3

Dorsal Scapular Nerve (C5) Muscles

Answer 3

Levator Scapulae

Rhomboid Major

Rhomboid Minor

Question 4

Long Thoracic Nerve (C5-C7) Muscles

Answer 4

Motor to serratus anterior

Question 5

Suprascapular Nerve (C5-C6)

Answer 5

Motor to:

Supraspinatus

Infraspinatus

Question 6

Nerve to Subclavius (C5-C6) Muscles

Answer 6

Motor to:

Subclavius

Question 7

How are cords of the brachial plexus named?

Answer 7

Relationship to the axillary artery

Question 8

Upper Subscapular Nerve muscles

Answer 8

Motor to:

Subscapularis

Question 9

Thoracodorsal Nerve muscles

Answer 9

Motor to:

Latissimus Dorsi

Question 10

Lower Subscapular Nerve muscles

Answer 10

Motor to:

Subscapularis

Teres Major

Question 11

Axillary Nerve

Answer 11

Motor to:

Deltoid Muscle

Teres Minor

Sensory to:

Skin of upper lateral arm (police badge nerve)

Terminal branch of posterior cord of brachial plexus

Question 12

Radial Nerve muscles/sensory

Answer 12

Motor to:

Extensors of posterior arm and posterior forearm

Sensory to:

Skin of posterior arm, posterior forearm, dorsolateral hand, and proximal part of dorsum of later 3 1/2 digits

Terminal branch of posterior cord of brachial plexus

Question 13

What makes the “M” in the nerves of the upper arm?

Answer 13

Terminal branches of Medial and Lateral Cords

Question 14

Lateral Pectoral Nerve muscles

Answer 14

Motor to:

Pectoralis Major

Question 15

Musculocutaneous Nerve muscles/sensory

Answer 15

Motor to:

Anterior Arm Muscles

Sensory to:

Lateral Forearm

Question 16

Medial Pectoral Nerve muscles

Answer 16

Motor to:

Pectoralis Major

Pectoralis Minor

Question 17

Terminal branches of medial cord

Answer 17

Ulnar nerve and medial part of Median nerve

Question 18

Sensory and Motor Functions of Ulnar Nerve

Answer 18

Motor to:

1 1/2 muscles of anterior forearm

Motor to most intrinsic muscles of the hand

Sensory to:

Medial 1/3rd of palm and dorsal hand and medial 1 1/2 fingers (palmar and dorsal sides)

Question 19

Sensory and Motor Functions of Median Nerve

Answer 19

Motor to:

Most muscles of anterior forearm

Some intrinsic muscles of hand (thumb muscles, lateral 2 lumbricals)

Sensory to:

Lateral 2/3rd of palm and palmar side of lateral 3 1/2 fingers and their nail beds