Circulatory
Circulatory
Blood
Respiratory
Respiratory and Heart
100

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

circulatory

100
Which of the following is NOT a type of blood vessel? a. artery c. lymphatic cell b. vein d. capillary
c
100
When an infection occurs, the number of white blood cells ...
increases
100

This is the name of the tiny sacs in the lungs where glasses enter the blood.

What are alveoli.

100
Chronic bronchitis, emphysema, and lung cancer can be caused by
smoking
200

Which of the following is NOT a part of the circulatory system? a.heart b.air passageway c. blood vessels d.blood

b

200
T/F: Blood pressure is lower in veins than in arteries.
True
200
Which of the blood cells contain hemoglobin?
RBCs
200
Air is filtered, warmed, and moistened in the
nose and mouth
200
Generally speaking, what controls breathing?
brain
300
Is the systemic or pulmonary the larger pathway of the circulatory system?
systemic
300
What are the smallest of the blood vessels?
capillaries
300
Which blood cells are most numerous in the body?
red
300
The process by which oxygen and carbon dioxide are exchanged between cells, the blood, and air in the lungs is called
respiration
300
Because there is more oxygen in an alveolus than in the blood around it, oxygen diffuses
from alveoli into the blood.
400
Compared with the walls of arteries, the walls of veins
are thinner
400
When the heart contracts, it produces a wave of fluid pressure in the
arteries
400
Which of the following is NOT a function of blood? a. regulate filtration c. transport nutrients b. regulate body temperature d. fight infection
a
400
What structure serves as a passageway for both air and food?
pharynx
400
The nicotine in cigarette smoke causes a. blood pressure to decrease. c. blood pressure to increase. b. heart rate to increase. d. both b and c.
d
500
The function of valves in the human circulatory system is to
prevent the backward flow of blood.
500
When the blood pressure is constantly too high, the condition is known as
hypertension
500

What component of blood is responsible for clotting?

Platelets

500

This is the name of the muscle that contracts when you inhale.

What is the diaphragm?

500
Where are the cells that make up the sinoatrial node, or pacemaker, located?
right atrium
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