Lab Demonstration

Question 1

Name the muscles of the eye and their actions

Answer 1

Superior rectus: rotates eye upward
Superior oblique: rotates eye downward and laterally
Medial rectus: rotates eye medially
Inferior rectus: rotates eye downward
Inferior oblique: rotates eye upward and laterally
Lateral rectus: rotates eye laterally

Question 2

Name the muscles of the shoulder joint (answer card holds actions, but just name muscles)

Answer 2

B) Pectoralis major: flexes, adducts, and medially rotates arm
F) Latissimus dorsi: extends, adducts, & medially rotates arm
A) Deltoid: abducts, flexes, & extends, medially & laterally rotates arm
G) Supraspinatus: abducts arm
H) Infraspinatus: laterally rotates arm
C) Subscapularis: medially rotates arm
H) Teres minor: adducts and laterally rotates arm
E) Teres major: extends and medially rotates arm
D)Coracobrachialis: adducts and flexes arm

Question 3

Muscle action of pectoralis major

Answer 3

flexes, adducts, and medially rotates arm

Question 4

Muscle action of subscapularis

Answer 4

Medially rotates arm

Question 5

Muscle action of supraspinatus

Answer 5

Abducts arm

Question 6

Muscle action of infraspinatus

Answer 6

Laterally rotates arm

Question 7

Muscle action of deltoid

Answer 7

Abducts, flexes & extends, medially & laterally rotates arm

Question 8

Muscle action of Latissimus dorsi

Answer 8

Adducts, extends, and medially rotates arm

Question 9

Muscle action of teres minor

Answer 9

Adducts and laterally rotates arm

Question 10

Muscle action of teres major

Answer 10

Extends and medially rotates arm

Question 11

Muscle action of Coracobrachialis

Answer 11

Adducts & flexes