Week 8 - Muscles

Question 1

Most muscles cross at least one

a) tendon
b) joint
c) bone
d) ligament
e) body plane

Answer 1

b) joint

Question 2

The attachment of a muscle’s tendon to the stationary bone is called the ______; the
attachment of the muscle’s other tendon to the movable bone is called the ______.
a) origin, action
b) insertion, action
c) origin, insertion
d) insertion, origin
e) insertion, action

Answer 2

c) origin, insertion

Question 3

This is the outermost layer of fascia (dense irregular connective tissue) surrounding a whole muscle.

Answer 3

Epimysium

Question 4

Which of the following is NOT a common arrangement of muscle fascicles?

a) pennate
b) triangular
c) oval
d) parallel
e) fusiform

Answer 4

c) oval

Question 5

This type of fascicle arrangement has the fascicles spread over a broad area and converges at a thick central tendon.

a) triangular
b) pennate
c) circular
d) fusiform
e) multipennate

Answer 5

a) triangular

Question 6

The muscle that serves as the “prime mover” during a movement is called the

a) antagonist.
b) agonist.
c) synergist.
d) asynergist.
e) fixator.

Answer 6

b) agonist.

Question 7

This type of muscle works by stabilizing the origin of the agonist so that it can act more efficiently.

a) synergist
b) agonist
c) antagonist
d) fixator
e) secondary mover

Answer 7

d) fixator

Question 8

If one is stabbed on the lateral side of the abdomen, what abdominal muscles, in order from superficial to deep, will the knife go through?

a) rectus abdominis, external oblique, internal oblique
b) external oblique, internal oblique, transversus abdominis
c) transversus abdominis, rectus abdominis, external oblique
d) external oblique, transversus abdominis, rectus abdominis
e) internal oblique, transversus abdominis, external oblique

Answer 8

b) external oblique, internal oblique, transversus abdominis

Question 9

Protrusion of an organ through a structure that normally contains it is referred to as a

a) hernia.
b) goiter.
c) strain.
d) sprain.
e) hydrocele.

Answer 9

a) hernia.

Question 10

A muscle that raises or elevates a body part is called a

a) pronator.
b) tensor.
c) flexor.
d) depressor.
e) levator.

Answer 10

e) levator.

Question 11

A muscle that decreases the size of an opening is a

a) rotator.
b) tensor.
c) pronator.
d) sphincter.
e) depressor.

Answer 11

d) sphincter.

Question 12

Which of the following is a muscle that moves the mandible?

a) orbicularis oculi
b) masseter
c) orbicularis oris
d) epicranius
e) frontalis

Answer 12

b) masseter

Question 13

Which of the following is a muscle whose insertion is found on the clavicle and acromion process of the scapula within the pectoral girdle?

a) trapezius
b) pectoralis major
c) latissimus dorsi
d) gracilus
e) sartorius

Answer 13

b) pectoralis major

Question 14

All of the following are muscles of the lower limb EXCEPT the

a) deltoid.
b) adductor magnus.
c) adductor longus.
d) quadriceps femoris.
e) vastus medialis.

Answer 14

a) deltoid.

Question 15

The infraspinatus muscle is a muscle that moves the

a) upper leg.
b) lower leg.
c) upper arm.
d) lower arm.
e) carpals.

Answer 15

c) upper arm.

Question 16

Based on its name, which of the following best describes characteristics of the biceps femoris muscle?

a) has two insertions and found in lower leg
b) has two bellies and found in the upper leg
c) has two origins and found in the upper leg
d) has two origins and found in the upper arm
e) has two insertions and found in the upper leg

Answer 16

c) has two origins and found in the upper leg

Question 17

Which of the following muscles is NOT part of the quadriceps femoris muscle group?

a) rectus femoris
b) biceps femoris
c) vastus medialis
d) vastus lateralis
e) vastus intermedius

Answer 17

b) biceps femoris