Deck 48: Pig Muscular System

Question 1

Which term refers to the tail end of a four-legged animal?

A) cephalic
B) superior
C) caudal
D) inferior

Answer 1

C

Question 2

Identify the splenius in the following figure.

A) A
B) B
C) C
D) D
E) E

Answer 2

D

Question 3

Identify the longissimus dorsi in the following figure.

A) A
B) B
C) C
D) D
E) E

Answer 3

B

Question 4

How should the skin be separated from the underlying fascia?

A) Use the pointed end of a pair of scissors to separate the skin from the underlying muscle and connective tissues.
B) Use the scalpel to separate the skin from the underlying muscle and connective tissues.
C) Use your fingers or a blunt probe to separate the skin from the underlying muscle and connective tissues.

Question 5

Which muscle is located at the axillary border of the scapula where it originates?

A) teres major
B) infraspinatus
C) rhomboideus thoracis
D) supraspinatus
E) splenius

Question 6

Which group of muscles covers the dorsal surface of the neck and scapula?

A) deltoid group
B) rhomboideus group
C) trapezius group
D) pectoralis group

Question 7

Where should the first incision be made when dissecting a pig?

A) on the midline of the ventral surface at the base of the neck
B) on the lateral side of the dorsal surface near the neck
C) on the midline of the dorsal surface just anterior to the tail
D) on the lateral side of the ventral surface near the umbilical cord

Question 8

Which of the following is a large, flat muscle that lies posterior to the trapezius group?

A) supraspinatus
B) sternohyoid
C) deltoid
D) latissimus dorsi

Question 9

Identify the brachiocephalic in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 10

Which of the following muscles is NOT located in the neck?

A) mylohyoid
B) sternohyoid
C) digastric
D) teres major
E) sternomastoid

Question 11

Identify the serratus ventralis in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 12

Which term refers to the ventral surface of a four-legged animal?

A) cephalic
B) inferior
C) caudal
D) superior

Question 13

In pigs, the trapezius group of muscles is composed of three distinct muscles. How many muscle(s) make up the trapezius in humans?

A) three
B) two
C) one
D) four

Question 14

To begin dissecting the pig, place it ________ side down on the dissecting tray.

A) caudal
B) ventral
C) cephalic
D) dorsal

Question 15

Which muscle is a broad, flat, thin muscle that covers most of the lateral surface of the cervical and thoracic vertebrae?

A) supraspinatus
B) rhomboideus thoracis
C) infraspinatus
D) splenius
E) teres major

Question 16

Which statement regarding the storage of your pig is the most correct?

A) The pig should be dried and then stored in a sealed bag.
B) The pig should be stored in a sealed bag with exposed muscles covered with paper towels that have been dampened with fixative.
C) The pig should be stored in a sealed bag covered in distilled water.
D) The pig should be stored on the dissecting pan without any coverings.

Question 17

Which muscle of the neck functions to turn and depress the head?

A) sternomastoid
B) digastric
C) sternohyoid
D) mylohyoid

Question 18

Which group of muscles covers the ventral surface of the chest?

A) pectoralis group
B) deltoid group
C) trapezius group
D) rhomboideus group

Question 19

Which group of muscles connects the spinous processes of cervical and thoracic vertebrae with the vertebral border of the scapula?

A) trapezius group
B) intercostal group
C) rhomboideus group
D) pectoralis group

Question 20

Identify the spinotrapezius in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 21

Which muscle of the neck functions to elevate the mandible?

A) mylohyoid
B) sternomastoid
C) sternohyoid
D) masseter
E) digastric

Question 22

Which muscle functions to adduct and rotate the femur as well as extend the tibia?

A) gracilis
B) sartorius
C) gluteus medius
D) pectineus

Question 23

Identify the anterior deep pectoral in the following figure.

A) A
B) B
C) C

Question 24

Which of the following muscles is NOT a component of the quadriceps femoris?

A) vastus intermedius
B) vastus lateralis
C) rectus femoris
D) vastus medialis
E) biceps femoris

Question 25

Identify the brachialis in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 26

Which muscle is located on the ventrolateral surface of the humerus and functions to flex the forelimb?

A) triceps brachii
B) biceps brachii
C) brachioradialis
D) brachialis

Question 27

Which of the four abdominal muscles listed below do all of the other three muscles insert on?

A) rectus abdominis
B) external oblique
C) transverse abdominis
D) internal oblique

Question 28

Identify the masseter in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 29

Identify the sternomastoid muscle in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 30

Which of the abdominal muscles listed is the most superficial and lateral?

A) transverse abdominis
B) rectus abdominis
C) external oblique
D) internal oblique

Question 31

Identify the linea alba in the following figure.

A) A
B) B
C) C
D) D

Question 32

Identify the rectus abdominis in the following figure.

A) A
B) B
C) C
D) D

Question 33

Identify the posterior deep pectoral in the following figure.

A) A
B) B
C) C

Question 34

How many points of origin does the triceps brachii have?

A) four
B) one
C) three
D) two

Question 35

Which of the three muscles of the pig pectoralis group is NOT found in humans?

A) anterior deep pectoralis minor
B) superficial pectoral
C) posterior deep pectoralis major

Question 36

Which muscle is correctly matched to its origin and insertion?

A) sartorius-originates on the ischium and pubic symphysis and inserts on the medial surface of the tibia
B) gracilis-originates on the ischial tuberosity and inserts on the tibia
C) pectineus-originates on the crest of the ilium and inserts into the fascia lata
D) gluteus medius-originates on the ilium and the transverse processes of the last sacral and first caudal vertebrae and inserts on the femur

Question 37

Identify the extensor carpi radialis in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 38

The biceps brachii functions as which of the following?

A) an extensor of the forelimb
B) a supinator of the paw
C) a flexor of the digits
D) an extensor of the carpal joints
E) a flexor of the forelimb

Question 39

In pigs, the pectoralis group of muscles consists of ________ muscles, while in humans it consists of ________.

A) one; three
B) three; two
C) three; one
D) two; three

Question 40

Which muscle of the quadriceps femoris group lies deep to the rectus femoris?

A) vastus medialis
B) vastus lateralis
C) vastus intermedius
D) semimembranosus

Question 41

Identify the gastrocnemius in the following figure.

A) A
B) B
C) C
D) D
E) E

Question 42

Which muscle lies deep to the gastrocnemius?

A) tibialis anterior
B) soleus
C) fibularis longus
D) extensor digitorum longus

Question 43

Which muscle of the hamstring group functions to extend the thigh?

A) semimembranosus
B) biceps femoris
C) semitendinosus
D) vastus lateralis

Question 44

Which of the following muscles functions to extend the foot?

A) gastrocnemius
B) fibularis longus
C) flexor digitorum longus
D) fibularis tertius
E) extensor digitorum longus

Question 45

Which two muscles act antagonistically?

A) gastrocnemius-soleus
B) flexor digitorum longus-gastrocnemius
C) extensor digitorum longus-flexor digitorum longus
D) tibialis anterior-fibularis longus

Question 46

Which of the following muscles is correctly matched to its origin and insertion?

A) extensor digitorum longus-originates on the lateral epicondyle of the femur and inserts on each of the five digits
B) fibularis brevis-originates on the fibula and inserts on the base of the fifth metatarsal
C) fibularis longus-originates on the tibial tuberosity and inserts on each of the five digits
D) gastrocnemius-originates on the proximal ends of the tibia and fibula and inserts on the first metatarsal
E) tibialis anterior-originates on the femur and inserts on the calcaneus

Question 47

Identify the semimembranosus in the following figure.

A) A
B) B
C) C
D) D