UL summary

Question 1

What is the origin and insertion of the biceps brachii?

Answer 1

Origin - long head is supraglenoid tubercle of scapula and short head is the coracoid process
Insertion - radial tuberosity and bicipital aponeurosis

Question 2

What is the origin and insertion of the coracobrachialis?

Answer 2

Origin - coracoid process of the scapula
Insertion - medial side of humeral shaft at level of deltoid tubercle

Question 3

What is the origin and insertion of the brachialis?

Answer 3

Origin - medial and lateral aspect of humeral shaft
Insertion - ulnar tuberosity

Question 4

What is the innervation the the anterior upper arm?

Answer 4

Musculocutaneous nerve

Question 5

Where is the insertion of the triceps brachii?

Answer 5

Olecranon of the ulna

Question 6

What are the origins of the triceps brachii?

Answer 6

Lateral - humerus, superior to radial groove
Medial - humerus, inferior to radial groove
Long - infra-glenoid tubercle of the scapula

Question 7

What is the innervation of the triceps brachii?

Answer 7

Radial nerve

Question 8

What is A and B?

Answer 8

A - lateral head of triceps brachii
B - long head of triceps brachii

Question 9

What are the roots of the musculocutaneous nerve?

Answer 9

C5-7

Question 10

What are the roots of the axillary nerve?

Answer 10

C5 + 6

Question 11

What are the roots of the median nerve?

Answer 11

C6-T1

Question 12

What are the roots of the radial nerve?

Answer 12

C5-T1

Question 13

What are the roots of the ulnar nerve?

Answer 13

C8-T1

Question 14

What is the common flexor attachment for the anterior forearm muscles?

Answer 14

Medial epicondyle

Question 15

What is the origin and insertion of the pronator teres?

Answer 15

Origin - medial epicondyle and coronoid process of the ulna
Insertion - mid-shaft of radius

Question 16

What is the innervation of the anterior forearm?

Answer 16

Mainly median nerve except flexor carpi ulnaris and medial side of the FDP

Question 17

What is the origin and insertion of the FDS?

Answer 17

Origin - medial epicondyle and radius
Insertion - 4 tendons attach to the lateral 4 digits on middle phalanx

Question 18

What is the attachment of the flexor pollicus longus?

Answer 18

Distal phalanx of the thumb

Question 19

What is the attachment of the FDP?

Answer 19

Distal phalanx of lateral 4 digits

Question 20

What is the origin and insertion of the brachioradialis?

Answer 20

Origin - lateral supracondylar ridge of the humerus
Insertion - distal end of the radius

Question 21

What is the common extensor attachment of the posterior forearm?

Answer 21

Lateral epicondyle

Question 22

Where is the attachment of the extensor digitorium?

Answer 22

Extensor hood of lateral 4 digits

Question 23

What is the innervation of the posterior forearm?

Answer 23

Radial nerve

Question 24

What is the origin and insertion of the supinator?

Answer 24

Origin - lateral epicondyle and posterior surface of ulna
Insertion - posterior surface of radius

Question 25

What is the innervation of the thenar muscles?

Answer 25

Median nerve

Question 26

What is the innervation of the hypothenar muscles?

Answer 26

Ulnar nerve

Question 27

What is the origin and insertion of the lumbricals?

Answer 27

Each lumbrical originates from tendon of FDP
Inserts onto extensor hood

Question 28

What is the action of the lumbricals?

Answer 28

Flexion at MCP joint and extension of IPJ of each digit

Question 29

What is the action of the dorsal and palmar interossei?

Answer 29

Dorsal - abduction
Palmar - adduction

Question 30

What is the origin and insertion of the interossei?

Answer 30

Origin - medial and lateral surface of the metacarpals
Insertion - extensor hood and proximal phalanx of each finger

Question 31

What are the main ligaments of the shoulder?

Answer 31

Coracoacromial, coracohumeral, glenohumeral and transverse humeral ligaments