Muscle Structure and Function

Question 1

Which best describes the top and bottom images of muscle contraction?

Revolt · Accepted Answer

The top image is more relaxed than the bottom image.

Question 2

Which two structures make up the muscular system?

Revolt · Accepted Answer

muscles and tendons

Question 3

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 4

What is the function of the type of muscle that is pictured below?

Revolt · Accepted Answer

support and movement of the skeleton

Question 5

What functions does the muscular system perform?

Revolt · Accepted Answer

It provides stability, movement, and posture.

Question 6

What is the function of the type of muscle that is pictured below?

Revolt · Accepted Answer

contraction and relaxation of the heart

Question 7

How do the muscles help in thermoregulation?

Revolt · Accepted Answer

Muscles contract rapidly, producing heat.

Question 8

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

Revolt · Accepted Answer

actin and myosin activated

Question 9

What is a protein that is the main component of the thick filaments in muscle fibers and is responsible for muscle contraction?

Revolt · Accepted Answer

myosin

Question 10

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

Revolt · Accepted Answer

involuntary movement

Muscle Structure and Function Answers

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