Muscle Structure and Function

Question 1

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 2

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

Revolt · Accepted Answer

contraction and relaxation of the heart

Question 3

What functions does the muscular system perform?

Revolt · Accepted Answer

It provides stability, movement, and posture.

Question 4

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

Revolt · Accepted Answer

Its striations allow for big movements.

Question 5

Which describes step three of a muscle contraction?

Revolt · Accepted Answer

Actin and myosin are completely overlapped.

Question 6

What is a tendon?

Revolt · Accepted Answer

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

Question 7

best

Revolt · Accepted Answer

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

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

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

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

Revolt · Accepted Answer

support and movement of the skeleton

Muscle Structure and Function Answers

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