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