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