Muscles Of The Upper Limb

Question 1

What are the muscles of the upper limb categorized into?

Answer 1

1) muscles connecting the upper limb to the thorax
2) muscles connecting the upper limb to the vertebral column
3) muscles of the scapula
4) muscles of the arm
5) muscles of the forearm
6) muscles of the hand

Question 2

What are the 4 muscles connecting the upper limb to the thorax?

Answer 2

Pectoralis major, pectoralis minor, subclavius, serratus anterior

Question 3

What are actions of pectoralis major?

Answer 3

Adduction, flexion, medial rotation of the arm

Question 4

What are action of pectoralis minor?

Answer 4

Depression of the shoulder

Question 5

What is the action of the subclavius?

Answer 5

Depression of the clavicle

Question 6

What is the action of serratus anterior?

Answer 6

Rotation of the scapula

Question 7

What are the muscles connecting the upper limb to the vertebral column?

Answer 7

Trapezius, levator scapulae, rhomboidus minor, rhomboidus major, latissimus dorsi, Teres major and minor

Question 8

What is the action of the trapezius?

Answer 8

Rotation of the scapula

Question 9

What muscles have the action of retraction of the shoulder?

Answer 9

levator scapulae, rhomboidus minor and major

Question 10

What is the action of the latissmmus dorsi?

Answer 10

Adduction, extension, medial rotation of the arm

Question 11

What are the muscles of the shoulder?

Answer 11

Deltoid, supraspinatus, infraspinatus

Question 12

What is the action of deltoid and supraspinatus?

Answer 12

Abduction of the arm

Question 13

What are the muscles of the arm?

Answer 13

Biceps, Brachialis, coracobrachials, triceps

Question 14

What is the action of biceps?

Answer 14

Flexion and supination of the forearm

Question 15

What is the action of the triceps?

Answer 15

Extension of the elbow

Question 16

What are the anterior group of muscles of the forearm?

Answer 16

Flexion muscle, pronation muscles → pronator teres & quadratus

Question 17

What are the posterior group of muscles of the forearm?

Answer 17

Extension muscle, supination muscle → supinator

Question 18

What is the lateral group of the muscle of the hand?

Answer 18

Thenar muscles

Question 19

What are the actions of thenar muscles?

Answer 19

Abduction, adduction, flexion and opposition of the thumb

Question 20

What are the middle group of muscles of the hand?

Answer 20

Muscles of the palm, between the metacarpal bones

Question 21

What are the actions of the muscles of the palm?

Answer 21

Abduction and adduction of the fingers, writing position

Question 22

What is the medial group of the muscles of the hand?

Answer 22

Hypothenar muscles

Question 23

What are the actions of the hypothenar muscles?

Answer 23

Abduction and flexion of the little finger

Question 24

Answer 24