$$\theta_{final} \u003c \theta_{initial}$$

Question 1

Which of the following statements best describes the function of muscle tissue in maintaining body temperature?

Accepted Answer

Muscle tissue produces heat as a byproduct when contracting, helping to maintain normal body temperature.

Question 2

Which type of muscle tissue is characterized by striations, voluntary control, and multi-nucleated cells?

Accepted Answer

Skeletal muscle

Question 3

A patient is unable to consciously control the contraction of their gallbladder. Which type of muscle tissue is most likely involved?

Accepted Answer

Smooth muscle

Question 4

Which anatomical landmark is bordered by the midline of the neck, the inferior margin of the mandible, and the sternocleidomastoid muscle?

Accepted Answer

Anterior cervical triangle

Question 5

During flexion at a synovial joint, which of the following best describes the change in angle between the articulating bones?

Accepted Answer

The angle decreases

Question 6

Which muscle is primarily responsible for chewing and grinding food?

Accepted Answer

Masseter

Question 7

If a muscle's origin is located proximally and its insertion is located distally, what happens during contraction?

Accepted Answer

The insertion moves closer to the origin

Question 8

Which of the following movements describes twisting the sole of the foot medially?

Accepted Answer

Inversion

Question 9

Which equation best represents the relationship between muscle contraction and heat production?

Accepted Answer

$$Energy_{ATP} \rightarrow Work_{contraction} + Heat_{byproduct}$$

Question 10

Which muscle tissue type contains intercalated disks and is found only in the heart?

Accepted Answer

Cardiac muscle

Question 11

A medical student is palpating the axilla to locate the axillary artery. Which anatomical structure forms the lateral wall of the axilla?

Accepted Answer

Humerus

Question 12

Which of the following best describes the action of the sternocleidomastoid muscle?

Accepted Answer

Rotates and flexes the neck

Question 13

Which movement at a synovial joint involves moving a limb away from the longitudinal axis of the body in the frontal plane?

Accepted Answer

Abduction

Question 14

Which of the following is NOT a function of skeletal muscle?

Accepted Answer

Producing hormones

Question 15

A patient presents with difficulty elevating their shoulder. Which movement is most likely impaired?

Accepted Answer

Elevation

Question 16

Which equation correctly represents the decrease in angle during flexion at a joint?

Accepted Answer

$$	heta_{final} \u003c 	heta_{initial}$$

Question 17

Which landmark is essential for locating the femoral artery during a medical procedure?

Accepted Answer

Femoral triangle

Question 18

Which muscle tissue type is described as non-striated, involuntary, and found lining hollow organs?

Accepted Answer

Smooth muscle

Question 19

Which of the following best describes circumduction at a synovial joint?

Accepted Answer

Circular motion without rotation

Question 20

Which of the following is a correct pairing of muscle name and its action?

Accepted Answer

Rectus abdominus - flexes the trunk

The Muscular System: Structure, Function, and Landmarks

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