25 Jan A bundle of muscle

PHA1500 A Structure and Function of the Human Body

Module 03 Quiz The Muscular and Nervous Systems

Question 1

What is released at a synapse between two neurons?

Selected Answer:

Neurotransmitter

Answers:

Hormones

Neurotransmitter

Calcium

Electrical charge

Question 2

Which neurons carry information from the central nervous system to the target gland, organ, or muscle?

Answers:

Afferent neurons

Efferent neurons

Interneurons

Sensory neurons

Question 3

Which type of muscle is found within internal organs such as the stomach, small intestine, bladder, and uterus within women?

Answers:

Striated muscle

Smooth muscle

Skeletal muscle

Cardiac muscle

Question 4

Which statement is true regarding muscle contraction?

Answers:

The T-Tubules help transmit the action potential deep into the muscle cell stimulating the release of calcium.

The thick filament needs ATP to bind to the thin filament.

The axon terminal of the nerve cells comes into direct contact with the muscle cell.

Muscle cells can contract with the use of calcium.

Question 5

What begins the process of muscle contraction?

Answers:

Nerve impulse

ATP

Sodium

Calcium

Question 6

ATP is needed in muscle contraction for what process?

Answers:

For the thick filament and thin filament to bind

For calcium to be released into the cytoplasm of the cell

For the cross-bridge to occur

For the release of the thick filament from the thin filament

Question 7

What is true of the parasympathetic nervous system stimulation?

Answers:

It will increase the heart rate.

It will dilate the pupils of the eye.

It has a calming effect on the body.

It will decrease the blood flow to and activity/function of the digestive system.

Question 8

Which portion of the brain contains nuclei centers that control and regulate breathing, blood pressure, and heart rate?

Answers:

Cerebellum

Cerebrum

Brain stem

Diencephalon

Question 9

What is the main function of the neuroglia cells?

Answers:

Produce the electrical impulse

Protect and assist the function of neurons

Store memories

Synthesize neurotransmitters

Question 10

The autonomic nervous system (ANS) mainly influences the internal organs of the body.

Answers:

True

False

Question 11

Muscle cells are filled with specialized proteins that allow for contraction to occur.

Answers:

True

False

Question 12

The cranial nerves are classified as part of the peripheral nervous system and provide sensory and motor function primarily to the head and neck.

Answers:

True

False

Question 13

Which portion of the brain allows for balance, coordinated movement of large muscle groups, posture, and overall coordination?

Answers:

Cerebellum

Cerebrum

Brain stem

Diencephalon

Question 14

The sarcomeres are the smallest structural unit of a muscle cell and consists of a unique arrangement of thin and thick filaments.

Answers:

True

False

Question 15

What is the largest portion of the brain that allows for your ability to think, feel, see, and use social judgment?

Answers:

Cerebellum

Cerebrum

Brain stem

Diencephalon

Question 16

Grey matter of the central nervous system is a collection of neuron axons.

Answers:

True

False

Question 17

Which portion of the neuron contains the nucleus?

Answers:

Cell body (soma)

Axon

Glia cells

Dendrites

Question 18

White matter in the central nervous system (CNS) performs the neural integration–in other words, the decision-making process and storage of memories.

Answers:

True

False

Question 19

What best describes a muscle fascicle?

Answers:

A bundle of thick and thin filaments

A bundle of muscles

A bundle of muscle cells (fibers)

The layer of the fascia around the muscle

Question 20

The spinal cord relays information from the body to the brain and from the brain to the body via spinal nerve tracts.

Answers:

True

False