Cat Muscles

Question 1

The _______ is a thin, large muscle that covers almost the whole side of the body. It adheres to the skin.

Answer 1

Cutaneous maximum

Question 2

This muscles covers the sides of the neck and face

Answer 2

Platysma

Question 3

Name the muscles indicated. What is their action?

Answer 3

A - Acromiotrapezius (A: Draws scapula dorsally)

B - Spinotrapezius (A: Draws scapula dorsally)

C - Latissimus dorsi (A: Pulls arm caudodorsally)

Question 4

Name the muscles indicated. What is their action?

Answer 4

A - Clavotrapezius (A: Draws scapula craniodorsally)

B - Levator scapulae ventralis (A: Draws scapula cranially)

C - Acromiotrapezius (A: Draws scapula dorsally)

D - Spinodeltoid (A: Flexes and rotates humerus)

E - Spinotrapezius (A: Draws scapula dorsally)

F - Acromiodeltoid (A: Flexes and rotates humerus)

G - Clavobrachialis (A: Flexes forearm)

H - Latissimus dorsi (A: Pulls arm caudodorsally)

I - Lateral head of triceps brachii (A: Extends forearm)

J - Long head of triceps brachii (A: Extends forearm)

Question 5

Name the muscles indicated. What is their action?

Answer 5

A - Xiphihumeralis (A: Adducts forelimb)

B - Pectoralis minor (A: Adducts forelimb)

C - Pectoantebrachialis (A: Adducts forelimb)

D - Pectoralis major (A: Adducts forelimb)

E - Clavotrapezius (A: Draws scapula craniodorsally)

F - Lattisimus dorsi (A: Pulls arm caudodorsally)

G - Clavobrachialis

Question 6

What muscle is indicated here? What is it’s action? It extends obliquely upwards from the ribs and scapula.

What muscle lies dorsal to this one?

Answer 6

This is the serratus ventralis (A: Draws scapula to thorax)

The rhomboideus is dorsal to this one.

Question 7

What are these muscles indicated? What is their action? A fills the space between spinous and transverse processes of vertebrae and B extends onto the neck.

Answer 7

A - Erector spinae

B - Multifudus spinae (A: Extends from vertebral column)

Question 8

Name the indicated muscles. What is their action?

Answer 8

A - External oblique (A: Constricts abdomen)

B - Internal oblique (A: Compresses abdomen)

Question 9

Name the muscles indicated. What is their action?

Answer 9

A - Internal oblique (A: Compresses abdomen)

B - Transverse abdominis (A: Constricts abdomen)

Question 10

Name the muscles indicated. What is their action? What lies dorsal to these muscles?

Answer 10

A - Rhomboideus (A: Draws scapula dorsally and medially)

B - Rhomboideus capitis (A: Draws scapula cranially)

Dorsal to the rhomboideus is the clavotrapezius and spinotrapezius

Question 11

Name the muscle indicated by the pointer. What is it’s action?

Answer 11

Digastric (A: Depresses lower jaw)

Question 12

Name the muscle indicated by the pointer

Answer 12

Sternomastoid

Question 13

Name the muscles indicated. What is their action?

Answer 13

A - Lateral head of triceps brachii (A: Extends forearm)

B - Medial heads of triceps brachii (A: Extends forearm)

C - Long head of triceps brachii (A: Extends forearm)

Question 14

Name the muscles indicated. What is their action? What forearm muscle is not pictured? Where is it located?

Answer 14

A - Extensor carpi radialis longus (A: Extends hand)

B - Externsor digitorum communis (A: Extends digit 2-5)

C - Extensor digitorum lateralis (A: Extends digit 2-5)

D - Extensor carpi ulnaris (A: Extends digit 5)

E - Brachioradialis

Not pictured: Extensor carpi radialis brevis (A: Extends hand) - located beneath the longus

Question 15

Name the muscles indicated.

Answer 15

A - Extensor carpi radialis brevis

B - Extensor digitorum communis

C - Extensor digitorum lateralis

D - Extensor carpi ulnaris

E - Extensor carpi radialis longus

F - Triceps brachii - lateral head

Question 16

Name these muscles of the leg. What is their action?

Answer 16

A - Sartorius (A: Adducts and rotates thigh)

B - Gracialis (A: Adducts thigh)

Question 17

Name these muscles. What is their action?

Answer 17

A - Biceps femoris (A: Abducts thigh, flexes leg)

B - Sartorius (A: Adducts and rotates thigh)

Question 18

Name these muscles. What is their action? What has been reflected at A?

Answer 18

A - Biceps femoris (A: Abducts thigh, flexes leg)

B - Semitendinosus (A: Flexes leg)

C - Sartorius (A: Adducts and rotates thigh)

D - Semimembranosus (A: Extends thigh)

Question 19

Name the muscles indicated. What is their action? What has been reflected in order to view A, B, and C?

Answer 19

A - Vastus lateralis (A: Extends leg)

B - Vastus intermedius (A: Extends leg)

C - Rectus femoris (A: Adducts thigh)

D - Vastus medialis (A: Extends leg)

Sartorius has been reflected.

Question 20

Name the muscles indicated. What is their action? What does A end with?

Answer 20

A - Gastrocnemius (A: Extends foot)

B - Soleus (A: Extends foot)

C - Tibialis anterior (A: Flexes foot)

A (Gastrocnemius) ends with the strong calcaneal tendon of Achilles

Question 21

Name these two ventral leg muscles. What is their action? What has been reflected to see them?

Answer 21

A - Semimembranosus (A: Extends thigh)

B - Semitendonosus (A: Flexes leg)

Sartorius and gracialis have been reflected

Question 22

Name these muscles

Answer 22

A - Rhomboideus

B - Rhomboideus capitis

C - Serratus ventralis