Unit 2 - Body Systems

Question 1

What is the function of osteoblasts in the body.

Answer 1

They provide structure and support

Question 2

How is homeostasis achieved?

Answer 2

Cells maintain internal stability.

Question 3

How are muscle cells and bone cells similar?

Answer 3

Both make it possible for you to respond to your environment by moving.

Question 4

Which of the following is one characteristic of all living things?

A. Using nerve cells to maintain temperature

B. Sending cells to deliver messages in the body

C. Maintaining homeostasis

D. Moving from place to place

Answer 4

C. Maintaining homeostasis

Question 5

What is the function of an organ system?

Answer 5

To work together to do a specific job

Question 6

Which option is a main type of muscle tissue?

A. Spongy bone

B. Skin

C. Blood vessels

D. Cardiac

Answer 6

D. Cardiac

Question 7

Which list is an organ system?

A. The heart, arteries, and veins

B. The liver, blood, and skin

C. The heart, the stomach, and intestines

D. The liver, the bladder, and the heart

Answer 7

A. The heart, arteries, and veins

Question 8

Which is most complex?

A. Organ system

B. Tissues

C. Organs

D. Cells

Answer 8

A. Organ system

Question 9

What function do the alveoli perform?

Answer 9

The alveoli exchange oxygen in the air for carbon dioxide in the blood

Question 10

Which organ of the respiratory system is located inside the lungs?

Answer 10

Bronchioles

Question 11

A patient has low blood oxygen levels, although the patient’s blood is circulating properly. Which is most likely functioning improperly?

A. The capillaries

B. The pulmonary vein

C. The aorta

D. The alveoli

Answer 11

D. The alveoli

Question 12

What is the function of the vena cava?

Answer 12

It carries deoxygenated blood from the body to the heart

Question 13

Which organ in the excretory system filters blood?

Answer 13

Kidney

Question 14

What is amylase?

Answer 14

An enzyme that breaks down food

Question 15

What is urea?

Answer 15

The waste removed by the kidney

Question 16

Which organ in the digestive system has a function that is most similar the function of the bladder in the excretory system?

Answer 16

Large intestine

Question 17

What is a dendrite?

Answer 17

It is the part of a neuron that carries information to the cell body

Question 18

What is the term for changes in the internal or external environment that cause a response?

Answer 18

Stimuli

Question 19

How do signals from sensory neurons reach motor neurons?

Answer 19

Through interneurons in the brain and spinal cord that connect sensory neurons and motor neurons

Question 20

What part of the nervous system is completely protected by bone?

Answer 20

Central nervous system

Question 21

You see a mosquito land on your hand and swat at it. A signal passes through many parts of different neurons to make this happen. Which component of the nervous system is the last to be involved in this process?

A. Dendrites in sensory neurons

B. Dendrites in motor neurons

C. Axons in sensory neurons

D. Axons in motor neurons

Answer 21

D. Axons in motor neurons

Question 22

Which sensory receptors are involved in hearing?

A. Photoreceptors

B. Mechanoreceptors

C. Chemoreceptors

D. Thermoreceptors

Answer 22

B. Mechanoreceptors