Upper Limbs

Question 1

Medial Epicondyle of humerus is…

Answer 1

The larger epicondyle in the medial side of the humerus

Question 2

Lateral epicondyle of humerus is…

Answer 2

Smaller epicondyle on the lateral side of the humerus

Question 3

8 carpal bones

Answer 3

Scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate and hamate

Question 4

Teres major origin

Answer 4

The lateral border of scapula

Question 5

Teres major insertion

Answer 5

Medial lip of intertubercular (bicipital) sulcus (groove) of humerus

Question 6

Teres major function

Answer 6

Adduction of arm @ GHJ
Medial rotation @ GHJ
Extension of arm @ GHJ

Question 7

Teres major innervation

Answer 7

Lower subscapular

Question 8

Arm is divided into anterior and posterior compartment by…

Answer 8

Deep fascia called the medial and lateral intramuscular septae

Question 9

Flexor muscles

Answer 9

Biceps brachii, coracobrachialis, and brachialis

Question 10

Extensor muscles

Answer 10

Triceps brachii

Question 11

Anterior compartment of the arm are innervated by…

Answer 11

Musculocutaneous

Question 12

Biceps brachii origin (short head)

Answer 12

Coracoid process of scapula

Question 13

Biceps brachii origin (long head)

Answer 13

Supraglenoid tubercle of scapula

Question 14

Biceps brachii insertion

Answer 14

Radial tuberosity and the bicipital aponeurosis

Question 15

Biceps brachii functions

Answer 15

Flexion of arm @ GHJ
Flexion of forearm @ GHJ
Supination of forearm @ elbow joint

Question 16

Coracobrachialis origin

Answer 16

Coracoid process of scapula

Question 17

Coracobrachialis insertion

Answer 17

Middle portion of the medial surface of humerus

Question 18

Coracobrachialis function

Answer 18

Flexion of arm @ GHJ

Addiction of arm @ GHJ

Question 19

Brachialis origin

Answer 19

Distal half of the anterior surface of humerus

Question 20

Brachialis insertion

Answer 20

Ulnar tuberosity

Coronoid process of ulna

Question 21

Brachialis functions

Answer 21

Flexion of forearm @ elbow joint

Question 22

Posterior compartment of the arm is innervated by the…

Answer 22

Radial nerve

Question 23

Triceps brachii origin (long head)

Answer 23

Infraglenoid tubercle

Question 24

Triceps brachii (lateral head) origin

Answer 24

Lateral, posterior humerus (superior to radial groove)

Question 25

Triceps brachii origin (medial head)

Answer 25

Rest of posterior surface of humerus (inferior to radial groove)

Question 26

Triceps brachii insertion

Answer 26

Olecranon process of ulna

Question 27

Triceps brachii functions

Answer 27

Extension of forearm @ elbow joint | Extension of arm @ GHF (only long head)

Question 28

Extensor retinaculum

Answer 28

Fascia that thickens posteriorly over the distal ends of the radius and ulna to form a transverse band

Question 29

Flexor retinaculum

Answer 29

Fascia that forms an anterior thickening that converts the anterior concavity of the carpus

Question 30

Carpal tunnel

Answer 30

Where the flexor retinaculum covers the carpal bones it creates a tunnel which the flexor tendons and median nerve pass

Question 31

Common flexor tendon

Answer 31

Where most of the flexor-pronation muscles arise from the medial epicondyle of the humerus

Question 32

Superficial layer of flexor muscles

Answer 32

Pronator teres Flexor carpi radialis (FCR) Palmaris longus Flexor carpi ulnaris (FCU)

Question 33

Intermediate layer flexor muscles

Answer 33

Flexor digitorum superficialis (FDS)

Question 34

Deep layer flexor muscles

Answer 34

Flexor digitorum profundus (FDP) Flexor pollicis longus (FPL) Pronator quadratus

Question 35

All flexor muscles are innervated by…except…

Answer 35

The median nerve except flexor carpi ulnaris (FCU) and the medial half of the flexor digitorum profundus (FDP) FCU and FDP are innervated by the ulnar nerve

Question 36

Pronator teres origin (numeral head)

Answer 36

Medial epicondyle of humerus (via common flexor tendon)

Question 37

Pronator teres origin (ulnar head)

Answer 37

Coronoid process of ulna

Question 38

Pronator teres insertion

Answer 38

Middle of the lateral aspect of pronator tubercle of radius

Question 39

Pronator teres functions

Answer 39

Pronation of forearm @ radioulnar joint | Flexion of forearm @ elbow joint

Question 40

Flexor carpi radialis (FCR) origin

Answer 40

Medial epicondyle of humerus (via common flexor tendon)

Question 41

Flexor carpi radialis insertion

Answer 41

Base of the 2nd and 3rd metacarpals

Question 42

Flexor carpi radialis functions

Answer 42

Flexion of forearm @ elbow joint (weakly) Flexion of hand @ wrist joint Abduction (radial deviation) of hand @ wrist joint

Question 43

Palmaris longus origin

Answer 43

Medial epicondyle of humerus (via common flexor tendon)

Question 44

Palmaris longus insertion

Answer 44

Palmar aponeurosis (deep fascia) and flexor retinaculum (thickening of deep fascia)

Question 45

Palmaris longus functions

Answer 45

Flexion of hand @ wrist joint | Flexion of forearm @ elbow joint

Question 46

Palmaris longus can be absent in…

Answer 46

13% of people

Question 47

Flexor carpi ulnaris origin

Answer 47

1. Medial epicondyle of humerus (via common flexor tendon) 2. Medial side of olecranon 3. Superior posterior border of ulna

Question 48

Flexor carpi ulnaris insertion

Answer 48

1. Base of 5th metacarpal 2. Hook of hamate 3. Pisiform

Question 49

Flexor carpi ulnaris functions

Answer 49

Flexion of hand @ wrist joint Flexion of forearm @ elbow joint Adduction (ulnar deviation) of hand @ wrist joint