Lab Practical 1 - UE's, Skull, Thorax

Question 0

Middle Trapezius

Answer 0

O. Spinous processes of C7 through T3
I. Scapular spine
A. Scapular retraction

Question 1

Upper Trapezius

Answer 1

O. Occipital bone, nuchal ligament on upper cervical spinous processes
I. Outer third of clavicle, acromion process
A. Scapular elevation and upward rotation

Question 2

Lower Trapezius

Answer 2

O. Spinous processes of middle and lower thoracic vertebrae
I. Base of the scapular spine
A. Scapular depression and upward rotation

Question 3

Anterior Deltoid

Answer 3

O. Lateral third of the clavicle
I. Deltoid tuberosity
A. Shoulder abduction, flexion, medial rotation, and horizontal adduction

Question 4

Middle Deltoid

Answer 4

O. Acromion process
I. Deltoid Tuberosity
A. Shoulder abduction

Question 5

Posterior Deltoid

Answer 5

O. Spine of scapula
I. Deltoid tuberosity
A. Shoulder abduction, extension, hyperextension, lateral rotation, horizontal abduction

Question 6

Extensor Carpi Radialis Longus

Answer 6

O. Supracondylar ridge of humerus
I. Base of second metacarpal
A. Wrist extension, radial deviation

Question 7

Extensor Carpi Radialis Brevis

Answer 7

O. Lateral epicondyle of humerus
I. Base of third metacarpal
A. Wrist extension

Question 8

Flexor Carpi Radialis

Answer 8

O. Medial epicondyle of the humerus
I. Base of second and third metacarpals
A. Wrist flexion, radial deviation

Question 9

Extensor Carpi Ulnaris

Answer 9

O. Lateral epicondyle of humerus
I. Base of fifth metacarpal
A. Wrist extension, ulnar deviation

Question 10

Flexor Carpi Ulnaris

Answer 10

O. Medial epicondyle of humerus
I. Pisiform and base of fifth metacarpal
A. Wrist flexion, ulnar deviation

Question 11

Sternocleidomastoid

Answer 11

O. Sternum and clavicle
I. Mastoid process
A. Bilaterally: flexes neck, hyperextends head
Unilaterally: laterally bends the neck; rotates face to the opposite side

Question 12

Rhomboids

Answer 12

O. Spinous processes of C7 through T5
I. Vertebral border of scapula between the spine and inferior angle
A. Scapular retraction, elevation, and downward rotation

Question 13

Pectoralis Major - Clavicular Portion

Answer 13

O. Medial third of clavicle
I. Bicipital groove
A. Shoulder flexion—first 60 degrees

Question 14

Pectoralis Major - Sternal Portion

Answer 14

O. Sternum, costal cartilage of first six ribs
I. Bicipital groove
A. Shoulder extension—first 60 degrees (from 180 degrees to 120 degrees)

Question 15

Pectoralis Major - Clavicular & Sternal Portions

Answer 15

A. Shoulder adduction, medial rotation, and horizontal adduction

Question 16

Serratus Anterior

Answer 16

O. Lateral surface of the upper eight ribs
I. Vertebral border of the scapula, anterior surface
A. Scapular protraction and upward rotation

Question 17

Biceps Brachii

Answer 17

O. Long head: supraglenoid tubercle of scapula
Short head: coracoid process of scapula
I. Radial tuberosity of radius
A. Elbow flexion, forearm supination

Question 18

Supraspinatus

Answer 18

O. Supraspinous fossa of the scapula
I. Greater tubercle of the humerus
A. Shoulder abduction

Question 19

Infraspinatus

Answer 19

O. Infraspinous fossa of scapula
I. Greater tubercle of humerus
A. Shoulder lateral rotation, horizontal abduction

Question 20

Triceps

Answer 20

O. Long head: infraglenoid tubercle of scapula
Lateral head: inferior to greater tubercle on posterior humerus
Medial head: posterior surface of humerus
I. Olecranon process of ulna
A. Elbow extension