Muscles

Question 1

External oblique

Answer 1

Originates on the lumbodorsal fascia and ribs
Inserts on the linea alba and pubis
Action: constricts the abdomen

Question 2

Internal oblique

Answer 2

Origin: lubodorsal fascia
Inserts: linea alba
Action: compresses the abdomen

Question 3

Transverse abdominis

Answer 3

Origin: costal ribs
Insertion: linea alba
Action: compresses the abdomen

Question 4

Recuts abdominis

Answer 4

Origin: pubis
Insertion: sternum and costal ribs
Action: compress abdomen

Question 5

Pectoralis major

Answer 5

Origin: cranial sternum
Insertion: humerus
Action: adduct the forelimb

Question 6

Pectoralis minor

Answer 6

Origin: sternum
Inserts: humerus
Action: adducts the forelimb

Question 7

Sternohyoid

Answer 7

Origin: first costal rib
Insertion: body of the hyoid
Action: pulls the hyoid posterior

Question 8

Masseter

Answer 8

Origin: zygomatic arch
Inserts: mandible
Action: raises the mandible

Question 9

Temporalis

Answer 9

Origin: temporal fossa
Inserts: Coronoid process of the skull
Action: raises the mandible

Question 10

Latissimus dorsi

Answer 10

Origin: thoracic and lumbar vertebrae
Insert: humerus
Action: pulls the arm caudodorsally

Question 11

Triceps brachii (long head)

Answer 11

Origin: axillary border of the scapula
Insert: olecranon process of the ulna
Action: extends the forearm

Question 12

Triceps brachii (lateral head)

Answer 12

Origin: greater tuberosity of the humerus
Inserts: olecranon process of the ulna
Action: extends the forearm

Question 13

Triceps brachii (medial head)

Answer 13

Origin: humerus
Insert: olecranon process of the ulna
Action: extends the forearm

Question 14

Biceps brachii

Answer 14

Origin: glenoid fossa
Insert: radius
Action: flexes the forearm

Question 15

Extensor carpi ulnaris

Answer 15

Origin: lateral epicondyle of the humerus
Inserts: fifth metacarpal
Action: extends the fifth digit

Question 16

Flexor Carpi ulnaris

Answer 16

Origin: medial epicondyle of humerus and the olecranon process
Inserts: pisiform
Action: flexes the carpals

Question 17

Flexor carpi radialis

Answer 17

Origin: medial epicondyle of the humerus
Inserts: second and third metacarpals
Action : flexes the second and third metacarpals

Question 18

Biceps femoris

Answer 18

Origin: ischium
Insert: patella and tibia
Action: abducts the thigh and flexes the shank

Question 19

Gluteus Maximus

Answer 19

Origin: sacral and caudal vertebrae
Insert: greater trochanter
Action: abducts the thigh

Question 20

Gluteus medius

Answer 20

Origin: caudal and sacral vertebrae
Insert: greater trochanter
Action: abducts the thigh

Question 21

Deltoid

Answer 21

Origin : acromion process and spine of the scapula
Insertion: deltoid ridge of the humerus
Action: rotate and flex the humerus

Question 22

Trapezius

Answer 22

Origin: spines of cervical and thoracic vertebrae
Insert: spine of the scapula
Action: pull scapula dorsally

Question 23

Tibialis anterior

Answer 23

Origin: tibia and fibula
Insert: metatarsal
Action: flexes the foot

Question 24

Gastrocnemius

Answer 24

Origin: femur, tendon, and fascia lata of plantaris
Insert: calcaneus
Action: extends foot

Question 25

Teres major

Answer 25

Origin: axillary border of the scapula
Insert: humerus
Action: flexes and rotates the humerus