Muscles of the shoulder, arm, and forearm

Question 1

Deltoid Muscle

Answer 1

Muscle that covers the shoulder
Shaped like a triangle
Moves down the lateral side of the upper arm

Question 2

Teres Major

Answer 2

Lowest muscle on the back of the scapula

Question 3

Supraspinatus

Answer 3

Origin: Supraspinous Fossa of the Scapula
Insertion: Greater tubercle of the Humorus
Action - Abduction - moves arms away from the body to the side. Flapping wings
Part of the rotator cuff

Question 4

Infraspinatus

Answer 4

Origin - Infraspinous Fossa of the Scapula
Insertion - Greater Tubercle of the humerus
Action - Laterally rotates arm
Part of the Rotator Cuff

Question 5

Teres Minor

Answer 5

Origin - Latteral border of the scapula
Insertion - Greater tubercle of the Humerus
Acton - Lateral rotation of the arm
Part of the rotator cuff

Question 6

Subscapularis

Answer 6

Origin - Subcapular fossa
Insertion - Lesser tubercle of the the humerus
Action - Medial rotation of the arm
Part of the Rotator cuff

Question 7

Triceps Brachii

Answer 7

Origin - 3 Points, one on the Humerus and two on the scapula
Insertion - Olecranon process of the ulna
Action - Extends forearm

On the posterior side of the arm

Question 8

Biceps Brachii

Answer 8

Origins - Two origin points, coracoid process and superior aspect of the humerus
Insertion - Radial Tuberosity
Acton - Flexes and supinates the forearm

Question 9

Brachialis

Answer 9

Muscle directly under the biceps

Action - Flexes the forearm

Question 10

Pronator Teres

Answer 10

Muscle of the forearm superficial layer, furthest to the thumb side palm up.
Origin - Medial epicondyle
Insertion - radius
Action - Pronates forearm

Question 11

Flexor Carpi Radialis

Answer 11

Muscle of the forearm superficial layer, thumb side middle palm up
Origin - Medial Epicondyle
Insertion - Metacarples 2-4
Action - Flex and abduct wrist

Question 12

Palmaris Longus

Answer 12

Muscle of the forearm superficial layer Pinky side Middle palm up
Origin - Medial Epicondyle
Insertion - Palm
Action - flexes the wrist

Question 13

Flexor Carpi Ulnaris

Answer 13

Muscle of the forearm superficial layer, furthest to the pinky side palm up.
Origin - Medial epicondyle
Insertion - Metacarple 5
Action - Flexes and adducts the wrist

Question 14

Flexor Digitorum Superficialis

Answer 14

Muscle of the forearm, middle layer palm upon
Action - Flexes wrist and fingers
Insertion - Phlanges 2-5

Question 15

Flexor Policis Longus

Answer 15

Muscle of the deep layer forearm thumb side palm up.

Action - controls and flexes thumb

Question 16

Flexor Digitorum Profundus

Answer 16

Muscle of the deep layer forearm pinky side, palm up.

action - Flexes fingers

Question 17

Brachioradialis

Answer 17

Muscle of the forearm palm down, furthest thumb side

Action - Flexes forearm

Question 18

Extensor Carpi radialis

Answer 18

Muscle of the forearm, superficial layer, palm down, middle muscle thumb side.
Two parts - longus and brevis
Origin - Lateral Epicondyle
Insertion - Metacarpals 2-4
Action - Extend and abduct wrist

Question 19

Extensor Digitorum

Answer 19

Muscle of the forearm, superficial layer, palm down, middle muscle pinky side
Origin - Lateral epicondyle
Insertion - Distal phlanges 2-5
Action - Extends wrist and fingers

Question 20

Extensor Carpi Ulnaris

Answer 20

Muscle of the forearm, superficial layer, palm down. furthest to the pinky side
Origin - Lateral epicondyle
Insertion - Metacarpal 5
Action - Extends and adducts wrist

Question 21

Supinator

Answer 21

Deeplayer muscle of the forearm closest to the elbow
Origin - Lateral epicondyle
Insertion - Radial Tuberosity
Action - Bring hand into a supinated position

Question 22

Abductor Pollicis Longus

Answer 22

Deep layer muscle of the forearm, just below the supinator,
Origin - both the radius and the ulna
Insertion - on the first metacarpal (thumb)
Action - abducts and extends the thumb

Question 23

Extensor Pollicis Brevis

Answer 23

Deep Layer muscle of the forearm furthest from the elbow.
Origin - Radius
Insertion - Proximal Phalanx of the thumb

Question 24

Thenar Muscle

Answer 24

Thumb muscle in the hand

Question 25

Hypothenar Muscle

Answer 25

Pinky muscle in the hand