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Circulation Review
Test Description: Circulation Review
Instructions: Answer all questions to get your test result.
1) A vessel that carries oxygen rich blood to the heart muscle is called
A
vein
B
ventricle
C
coronary artery
D
atrium
2) A group of cells that receives messages about the body's oxygen needs and sends out signals to adjust the heart rate is called the
A
valve
B
atrium
C
pacemaker
D
lymph node
3) At the site of a wound, platelets set off reactions that eventually cause the production of a chemical called
A
plasma
B
fibrin
C
hemoglobin
D
lymph
4) Plasma is mostly composed of
A
blood cells
B
water
C
hemoglobin
D
proteins
5) A disorder in which a person's blood pressure is consistently higher than normal is called
A
hypertension
B
heart attack
C
atherosclerosis
D
diffusion
6) Which of the following is NOT a characteristic of a vein?
A
walls are one cell thick
B
valves prevent backward flow of blood
C
returns blood to the heart
D
contracts to push blood along
7) The largest artery in the body is called the
A
coronary artery
B
atrium
C
pacemaker
D
aorta
8) The network of vessels that returns fluid to the bloodstream is called the
A
arteries
B
veins
C
lymphatic system
D
circulatory system
9) Hemoglobin is a protein that binds easily to
A
white blood cells
B
fibrin
C
oxygen
D
platelets
10) Which of the following structures pumps blood into arteries leading to the lungs?
A
left atrium
B
left ventricle
C
right ventricle
D
right atrium
*select an answer for all questions
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