Lesson 3: Muscle Structure and Function

Question 1

What is a tendon?

Revolt · Accepted Answer

A tendon is a connective tissue that links a bone to a muscle.

Question 2

Which two structures make up the muscular system?

Revolt · Accepted Answer

muscles and tendons

Question 3

How do the muscles help in thermoregulation?

Revolt · Accepted Answer

Muscles contract rapidly, producing heat.

Question 4

Which function of the muscular system is best illustrated by the heart pumping blood throughout the body?

Revolt · Accepted Answer

involuntary movement

Question 5

How does the structure of skeletal muscle help it perform its function?

Revolt · Accepted Answer

Its striations allow for big movements.

Question 6

Which of the following correctly differentiates the types of muscles based on the type of movement that they produce?

Revolt · Accepted Answer

skeletal is voluntary; smooth and cardiac are involuntary

Question 7

What functions does the muscular system perform?

Revolt · Accepted Answer

It provides stability, movement, and posture.

Question 8

A patient with muscular dystrophy starts to receive stem cells that generate muscle tissue. Which is the best prediction of what will happen to the patient's muscle function?

Revolt · Accepted Answer

Muscle function should increase because the cells would produce muscle tissue.

Question 9

The bicep muscle has an attachment point at the shoulder and one in the upper forearm. Look at these images of the bones of the arm. Imagine that the point of the arrow is where the force of the biceps muscle is applied to the bone.Which image would result in the biceps muscle contracting and the forearm being lifted?

Revolt · Accepted Answer

A

Question 10

Look at the image of a muscle fiber.Which is represented by the image?

Revolt · Accepted Answer

actin and myosin activated

Lesson 3: Muscle Structure and Function Answers

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