New York Science Grade 7

Chapter 15: Circulation

Circulation and Immunity

1
Blood goes from your lower body back to your heart through __________.
A)the coronary circulatory system
B)the transfusion
C)the hemoglobin
D)the inferior vena cava
2
Which of these is a condition related to blood clotting?
A)diffusion
B)hemophilia
C)HIV
D)atherosclerosis
3
Which of these might occur if coronary circulation is blocked?
A)a broken bone
B)a fever
C)a heart attack
D)a headache
4
Which of these is a blood disease?
A)fibrin
B)platelets
C)hypertension
D)leukemia
5
Which of these is true?
A)A person with type O blood cannot receive type O blood.
B)A person with type B blood cannot donate blood to a person with type AB blood.
C)A person with type AB blood can only donate blood to a person with type AB blood.
D)A person with type A blood can receive type B blood.
6
What are the upper chambers of the heart called?
A)systolic
B)plasma
C)aorta
D)atriums
7
What prevents blood from flowing backward in the veins?
A)capillaries
B)connective tissue
C)the vena cava
D)one-way valves
8
Which of these is NOT a lymphatic organ?
A)the thymus
B)the spleen
C)the tonsils
D)the lungs
9
Which of these is true?
A)Blood flows in only one direction between an atrium and a ventricle.
B)All four chambers of the heart contract at once during one heartbeat.
C)A vein helps blood flow between the two ventricles.
D)There is one atrium and one ventricle in the lower chamber of your heart.
10
Which body system moves materials throughout your body?
A)the reproductive system
B)the endocrine system
C)the cardiovascular system
D)the skeletal system
11
Which of these fights invaders of your body?
A)diastolic pressure
B)lymphocytes
C)inferior vena cava
D)white blood cells
12
Which of these is caused when blood pressure is higher than normal?
A)hypertension
B)anemia
C)hemophilia
D)leukemia
13
__________ carry blood away from the heart.
A)Arteries
B)Lungs
C)Platelets
D)Fibrin
14
The measure of the force of your blood that occurs when blood is pushed out of the heart is the __________.
A)white blood cells
B)Rh factor
C)systolic pressure
D)helper T-cells
15
Blood makes up about eight percent of your body's weight. If a person weighs 120 pounds, about how much of that mass is blood?
A)96 pounds
B)128 pounds
C)2 pounds
D)10 pounds
16
Which of these is NOT part of your blood?
A)plasma
B)platelets
C)white blood cells
D)superior vena cava
17
One way to get nutrients into cells is __________.
A)veins
B)perspiration
C)diffusion
D)lymphocytes
18
Where is blood under the greatest pressure?
A)arteries
B)capillaries
C)veins
D)lymph vessels
19
Which circulatory system moves blood to your brain?
A)the systemic circulatory system
B)the coronary circulatory system
C)the lymphatic circulatory system
D)the pulmonary circulatory system
20
Which of these is the largest artery in the human body?
A)the aorta
B)the platelet
C)the antigen
D)the capillary
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