Ch. 37 - Circulatory and Respiratory Systems Practice Test

If a person gets food stuck in his or her windpipe, it probably means that

A flap of tissue,epiglottis, failed to cover the entrance to the trachea when the person swallowed

Which of the following is NOT a part of the circulatory system

Air passageway

Compared with the walls of arteries, the walls of veins

Are thinner

When the heart contracts, it produces a wave of fluid pressure in the

Arteries

The roads of a city are similar to what structures in the circulatory system

Blood vessels

Which of the following is NOT contained in tobacco smoke

Caffeine

Which of the following are the smallest of the blood vessels

Cappillary

What gas, found in cigarette smoke, blocks the transport of oxygen by hemoglobin in the blood

Carbon monoxide

Which body system acts in a way similar to a transportation system?

Circulatory

Air is forced into the lungs by the contraction of the

Diaphragm

Which of the following activities is the best analogy for respiration

Exchanging gifts

Which of the following is NOT an effect of exercise on veins

Exercise helps increase the size of veins

Because there is more oxygen in an alveolus than in the blood around it, oxygen diffuses

From alveoli into the blood

The nicotine in cigarette smoke cause

Heart rate to increase and blood pressure to increase

When the blood pressure is constantly too high, the condition is known as

Hypertension

A blood pressure reading of 120/80

Indicates a systolic blood pressure of 120

Which of the following is correct about the composition of plasma

It is 90% water

Which of the following is true about blood pressure

It is lower in veins than in arteries

Which organ helps to regulate blood pressure

Kidney

Which of the following is NOT a type of blood vessel

Lymphatic cell

In the walls of a heart, the thick layer of muscle is called the

Myocardium

Air is filtered, warned, and moistened in the

Nose and mouth

What structure serves as a passageway for both air and food

Pharynx

Which of the following is the first step in blood clotting

Platelets release clotting factor

The function of valves in the human circulatory system is to

Prevent the backward flow of blood

Which blood cells are most numerous in the body

Red

Which of the following blood cells contain hemoglobin

Red

Which of the following is NOT a function of blood

Regulate filtration

The process by which oxygen and carbon dioxide are exchanged between cells, the blood, and air in the lungs is called

Respiration

Where are the cells that make up the sinoatrial node, or pacemaker, located?

Right atrium

Which is the correct direction of blood flow

Right atrium--->right ventricle--->pulmonary artery

In the heart, the mixing of oxygen-rich and oxygen-poor blood is prevented by the

Septum

Chronic bronchitis, emphysema, and king cancer can be cause by

Smoking

Which of the following pathways is the largest of the circulatory system

Systemic circulation

Generally speaking, what controls breathing

The brain

I'M figure 37-1, what does step B show?

The clumping of platelets

Which of the following statements about lungs is INCORRECT

They are muscular

When an infection occurs, the number of

White blood cells increases