Upper Appendicular - Arm Muscles

Question 1

Terms used to describe muscles

Brevis

Answer 1

Refers to short

Question 2

Terms used to describe muscles

Longus

Answer 2

Refers to long

Question 3

Terms used to describe muscles

Bi

Answer 3

Refers to two

Question 4

Terms used to describe muscles

Tri

Answer 4

Refers to three

Question 5

Terms used to describe muscles

Carpi

Answer 5

Means to grasp

Question 6

Terms used to describe muscles

Teres

Answer 6

Refers to small or cylindrical

Question 7

Terms used to describe muscles

Pollicis

Answer 7

Refers to the pollex

Question 8

Terms used to describe muscles

Minimi

Answer 8

Refers to small

Question 9

Terms used to describe muscles

Digiti

Answer 9

Refers to the digits

Question 10

Terms used to describe muscles

Retinaculum

Answer 10

Latin for “like a halter”

Question 11

Terms used to describe muscles

Flexor

Answer 11

Flexion at a joint

Question 12

Terms used to describe muscles

Extensor

Answer 12

Extension at a joint

Question 13

Terms used to describe muscles

Pronator

Answer 13

Pronation of the antebrachium

Question 14

Terms used to describe muscles

Supinator

Answer 14

Supination of the antebrachium

Question 15

Anterior Brachial Muscles

Biceps brachii

Answer 15

Two origins of this muscle but they merge to form one insertion
-Short head: this is the medial head of the biceps brachii, originates on the coracoid process
-Long head: This is the lateral head of the biceps brachii, originates on the superior rim of the glenoid fossa
-Insertion for both: radial tuberosity

Question 16

Anterior Brachial Muscles

Brachialis

Answer 16

Deep to the biceps brachii

Question 17

Anterior Brachial Muscles

Coracobrachialis

Answer 17

Deep and little medial to the short of the biceps brachii
Origin: coracoid process
Insertion: medial margin of the humerus

Question 18

Posterior Brachial Muscles

Triceps brachii

Answer 18

Three origins of this muscle but they merge to form one insertion
Lateral head: This is the lateral head of the triceps brachii, and it’s origin is the lateral margin of the humerus
Long head: this is medial to the lateral head of the triceps brachii, origin is the inferior rim of the glenoid fossa.
Medial head: This is deep to the lateral and long head of the triceps brachii, origin is the posterior humerus
Ins**ertion: Olecranon process

Question 19

Anterior Antebrachial Muscles

Palmaris longus

Answer 19

Center of the antebrachium with a tendon extending to the palm

Question 20

Anterior Antebrachial Muscles

Flexor digitorum superficialis

Answer 20

Deep to the palmaris longus

Question 21

Anterior Antebrachial Muscles

Felxor carpi ulnaris

Answer 21

Medial to the palmaris longus

Question 22

Anterior Antebrachial Muscles

Flexor carpi radialis

Answer 22

Lateral to the palmaris longus

Question 23

Anterior Antebrachial Muscles

Brachioradialis

Answer 23

Lateral to the flexor carpi radialis located on the lateral edge of the radius
Origin: superior to the lateral epicondyle of humerus
Insertion: styloid process of the radius

Question 24

Anterior Antebrachial Muscles

Pronator teres

Answer 24

An oblique muscles located in the antecubital region extending from the medial epicondyle of the humerus to the midlateral surface of the radius

Question 25

# Anterior Antebrachial Muscles Pronator quadratus

Answer 25

Transverse muscle located near the carpal region between the radius and ulna

Question 26

# Anterior Antebrachial Muscles Flexor retinaculum | not a muscle

Answer 26

This is a transverse band of connective tissue surrounding the carpal region on the anterior side, it stabilizes the tendons in the carpal region

Question 27

# Posterior Antebrachial Muscles Extensor digitorum

Answer 27

Center of the posterior antebrachium, which extends near the center of the carpal region to the digits, two through five.

Question 28

# Posterior Antebrachial Muscles Extensor carpi ulnaris

Answer 28

Medial to the extensor digitorum

Question 29

# Posterior Antebrachial Muscles Extensor digiti minimi

Answer 29

Located between the extensor digitorum and the extensor carpi ulnaris

Question 30

# Posterior Antebrachial Muscles Extensor carpi radialis brevis

Answer 30

Lateral to the extensor digitorum sitting a bit deep

Question 31

# Posterior Antebrachial Muscles Extensor carpi radialis longus

Answer 31

Lateral to the extensor carpi radialis brevis

Question 32

# Posterior Antebrachial Muscles Brachioradialis

Answer 32

Lateral to the extensor carpi radialis longus, located on the lateral edge of the radius

Question 33

# Posterior Antebrachial Muscles Anconeus

Answer 33

Located in the olecranon area, extending obliquely from the lateral epicondyle of the humerus to the olecranon

Question 34

# Posterior Antebrachial Muscles Supinator

Answer 34

Deep to the anconeus extending from the lateral epicondyle of the humerus to an area distal to the radial tuberosity

Question 35

# Posterior Antebrachial Muscles Abductor pollicis longus

Answer 35

An oblique muscle that is superior to the extensor pollicis brevis and is found deep and lateral to the extensor digitorum **Insertion**: metacarpal I

Question 36

# Posterior Antebrachial Muscles Extensor pollicis brevis

Answer 36

An oblique muscle that is inferior to the abductor pollicis longus and is found deep and lateral to the extensor digitorum **Insertion**: Proximal phalanx of the pollex

Question 37

# Posterior Antebrachial Muscles Extensor retinaculum | Not a muscle

Answer 37

This is a transverse band of connective tissue surrounding the carpal region on the posterior side, it stabilizes the tendons in the carpal region

Question 38

# Thenar muscles - Metatarsal I muscles Abductor pollicis brevis

Answer 38

The most lateral muscle of the hand

Question 39

# Thenar muscles - Metatarsal I muscles Flexor pollicis brevis

Answer 39

Medial to the abductor pollicis brevis

Question 40

# Thenar muscles - Metatarsal I muscles Opponens pollicis

Answer 40

Deep to the abductor pollicis brevis and the flexor pollicis brevis

Question 41

# Hypothenar muscles - Metatarsal V muscles Abductor digiti minimi

Answer 41

The most medial muscle of the hand

Question 42

# Hypothenar muscles - Metatarsal V muscles Flexor digiti minimi

Answer 42

Lateral to the abductor digiti minimi

Question 43

# Hypothenar muscles - Metatarsal V muscles Opponens digiti minimi

Answer 43

Lateral to the flexor digiti minimi

Question 44

# Rotator cuff muscles Supraspinatus

Answer 44

Located superior to the spine of the scapula in the supraspinous fossa

Question 45

# Rotator cuff muscles Infraspinatus

Answer 45

Located inferior to the spine of the scapula in the infraspinous fossa

Question 46

# Rotator cuff muscles Teres minor

Answer 46

Originates on the lateral border of the scapula, inferior to the infraspinatus muscle

Question 47

# Rotator cuff muscles Subscapularis

Answer 47

Located in the subscapular fossa of the scapula