Muscles of the Shoulders, Arms, Hands, & Body

Question 1

Latissuimus dorsi

Answer 1

a large, flat, triangular muscle that covers the lower back. It comes up from the lower half of the vertebral column and iliac crest (hip bone) and narrows to a rounded tendon attached to the front of the upper part of the humerus.

Question 2

Pectoralis major/minor

Answer 2

muscles of the chest that assist the swinging movements of the arm.

Question 3

Serratus anterior

Answer 3

a muscle of the thecst that assists in breating and in raising the arm

Question 4

Trapezius

Answer 4

muscle that covers the back of the neck, shoulders, and upper and middle region of the back; shrugs shoulders and stabilizes the scalpula.

Question 5

Biceps

Answer 5

muscles produce the contour of the front and inner side of the upper arm; they lift the forearm, flex the elbow, and turn the palms outward.

Question 6

Deltoid

Answer 6

a large, triangular muscle covering the shoulder join that allows the arm to extend outward and to the side of the body.

Question 7

Triceps

Answer 7

a large muscle that covers the entire back of the upper arm and extends the forearm.

Question 8

Extensors

Answer 8

part of the forearm, these muscles straighten the wrist, hand, and fingers to form a straight line

Question 9

Flexors

Answer 9

part of the forearm, extensor muscles of the wrist, are involved in flexing the wrists.

Question 10

Pronators

Answer 10

part of the forearm, muscles that turn the hand inward so that the palm faces downward

Question 11

supinator

Answer 11

part of the forearm, muscle that rotates outward and the palm upward.

Question 12

Abductors

Answer 12

Muscles that draw a body part, such as a finger, arm, or toe, away from the midline of the body or an extremity. In the hand, abductors separate the fingers.

Question 13

Adductors

Answer 13

Muscles that draw a body part, such as a finger, arm, or toe, inward toward the median axis of the body or of an extremity. In the hand, adductors draw the fingers.