Deck 11: Muscles of the Head, Neck, and Trunk

Question 1

Lateral rotation of the eyeball is facilitated by the ________.

A) superior rectus, inferior rectus, and lateral rectus muscles
B) superior oblique, lateral rectus, and inferior oblique muscles
C) superior rectus, medial rectus, and inferior rectus muscles
D) lateral rectus and medial rectus muscles

Answer 1

B

Question 2

Identify the prime mover that facilitates the action described in the following situation: After receiving positive feedback from your anatomy professor,the corners of your mouth elevate as you smile with delight.

A) depressor anguli oris
B) orbicularis oris
C) zygomaticus major
D) zygomaticus minor

Answer 2

C

Question 3

During a focused breathing exercise,you feel your ribs elevate as you inhale.Which muscle or muscle group is responsible for this action?

A) internal intercostal muscles
B) external intercostal muscles
C) the transversus thoracis muscle
D) the diaphragm

Answer 3

B

Question 4

Upon arriving in your anatomy lab,you drop your pencil.Identify the muscle that allows for flexion of the vertebral column,allowing you to bend at the waist to retrieve the pencil.

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

Question 5

An antagonist ________.

A) opposes a specific action
B) serves as the fixed attachment of a muscle
C) promotes or facilitates a specific action
D) is also known a prime mover. Contraction results in a specific action

Question 6

________ attach muscles to bones.

A) Cartilages
B) Cords
C) Tendons
D) Ligaments

Question 7

An agonist ________.

A) opposes a specific action
B) promotes or facilitates a specific action
C) serves as the fixed attachment of a muscle
D) is also known as a prime mover. Contraction results in a specific action

Question 8

Identify the muscle or muscles that facilitate the action described in the following situation: During a trip to New York City,you whistle loudly to hail a taxicab.

A) buccinator, mentalis
B) buccinator, orbicularis oris
C) buccinator, depressor anguli oris
D) buccinator

Question 9

The muscles of the head,neck,and trunk are referred to as the ________ muscles.

A) smooth
B) appendicular
C) axial
D) skeletal

Question 10

Contraction of muscle results in movement because ________.

A) at a joint, the bone acts as a pulley and the joint serves as a lever
B) at a joint, the bone acts as a lever, the joint serves as a fulcrum, and effort is generated by muscle attached to bone
C) at a joint, the bone acts as a fulcrum and the joint serves as a pulley
D) at a joint, the bone acts as a fulcrum and the joint serves as a lever

Question 11

The diaphragm ________.

A) originates and inserts on the ribs
B) is the primary muscle of respiration
C) elevates the ribs
D) depresses the ribs

Question 12

An aponeurosis is most similar to a ________.

A) muscle
B) ligament
C) bone
D) tendon

Question 13

Muscles of the head ________.

A) play an important role in breathing
B) facilitate movement of the facial features and promote mastication
C) allow voluntary eye movements
D) extend, laterally flex, and rotate the head

Question 14

Identify the prime mover that facilitates the action of your nostrils in the following situation: After a particularly vigorous exercise class,your strong breathing is accompanied by flaring of the nostrils.

A) nasalis
B) frontalis
C) mentalis
D) procerus

Question 15

Describe the relationship between the origin and insertion of a muscle.

A) The origin remains fixed and the insertion moves toward the origin during contraction.
B) Both the origin and insertion move when a muscle contracts.
C) The insertion remains fixed and the origin moves toward the origin during contraction.
D) There is no relationship between the origin and insertion.

Question 16

Which of the following muscles is NOT involved in mastication?

A) frontalis
B) masseter
C) temporalis
D) lateral pterygoid

Question 17

Identify the prime mover that facilitates the action described in the following situation: When asked to respond to a question in class,you raise your eyebrows and your forehead wrinkles.

A) nasalis
B) levator labii superioris
C) procerus
D) frontalis

Question 18

Identify the muscle or muscles responsible for the voluntary tongue movement necessary to facilitate swallowing.

A) styloglossus, tensor veli palatine, and laryngeal elevators
B) genioglossus, hyoglossus, and superior pharyngeal constrictor
C) palatoglossus, levator veli palatini, and styloglossus
D) palatoglossus, styloglossus, genioglossus, and hyoglossus

Question 19

A synergist ________.

A) serves as the fixed attachment of a muscle
B) assists the action of the agonist
C) opposes a specific action
D) is also known a prime mover. Contraction results in a specific action

Question 20

Inability to control (stop/start)the flow of urine may suggest ________.

A) a weak external oblique muscle
B) a weak spinalis muscle
C) a weak pubococcygeus muscle
D) weak intercostal muscles