AnswersNY-Life Science BiologyTerm 2 HillcrestMuscle Structure and Function

Muscle Structure and Function Answers

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Which two structures make up the muscular system?

A
muscles and bones
B
muscles and ligaments
C
muscles and tendons
D
muscles and joints
2
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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?

A
Muscle function should decrease because the cells would produce muscle tissue.
B
Muscle function should increase because the cells would produce muscle tissue.
C
Muscle function should decrease because the cells would not produce muscle tissue.
D
Muscle function should increase because the cells would not produce muscle tissue.
3

What functions does the muscular system perform?

A
It provides stability, movement, and posture.
B
It generates and conducts electrical signals.
C
It produces melanin, which protects from the sun.
D
It produces oil, which protects from foreign invasion.
4

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

Question illustration
A
support and movement of the skeleton
B
movement of food through the digestive system
C
contraction and relaxation of the heart
D
generation and conduction of electrical signals
5

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?

Question illustration
A
A
B
B
C
C
D
D
6

How does the muscular system help humans maintain posture?

A
Muscles continually align themselves vertically to help maintain posture.
B
Muscles continually push bones to be straight.
C
Muscles constantly contract to help fight gravity.
D
Muscles constantly contract to help work with gravity.
7

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

A
hormone regulation
B
support and strength
C
involuntary movement
D
voluntary movement
8

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

A
Its spindle-shaped cells allow it to do smooth movements.
B
Its striations allow for big movements.
C
Its nucleated cells allow it to trigger involuntary actions.
D
Its discs allow it to coordinate movement with other cells.
9

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

Question illustration
A
support and movement of the skeleton
B
movement of food through the digestive system
C
contraction and relaxation of the heart
D
generation and conduction of electrical signals
10

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

Question illustration
A
The top image is more relaxed than the bottom image.
B
The top image has greater actin-myosin interactions than the bottom image.
C
The bottom image is more relaxed than the top image.
D
The bottom image has fewer overlaps than the top image.

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