Question

1. what is the difference between the mitral valve and the tricuspid valve?

a) the mitral valve has three flaps
b) the mitral valve is on the right side of the heart
c) the mitral valve has two flaps
d) the tricuspid valve is on the left side of the heart

1. which of the following types of vessels connect arteries and veins, and is responsible for gas exchange?

a) inferior vena cava
b) valves
c) arteries
d) capillaries

1. the two sides of the heart...

a) serve the same exact function
b) are connected by a large arterial hole
c) act as two separate pumps
d) are located on different sides of the body

1. in comparing the walls of arteries and veins, which would be true?

a) veins are more muscular
b) arteries are more muscular
c) arteries are thinner
d) veins are not visible to the naked eye

1. why is the left ventricle thicker than the right ventricle?

a) because the left ventricle must pump blood against gravity to the whole body
b) because the right ventricle pumps blood to the lungs
c) because the right ventricle pumps blood to the body, and doesnt do as much work
d) because the left ventricle is superior to the right ventricle

1. how are blood types determined?

a) blood types are determined based on the antigens present on erythrocytes
b) you can choose your own blood type, you just have to tell your doctor
c) the leukocytes determine your blood type
d) the thrombocytes present determine your blood type

1. where is plasma found?

a) in blood
b) in urine
c) in brain
d) in muscles

1. why are thrombocytes important in blood?

a) they fight off infections
b) they deliver important oxygen to cells
c) they help transport the nutrients and hormones
d) they create blood clots when needed (injury repair)

1. the four chambers of the heart are the:

a) right and left atrium, right and left ventricle
b) right and left pulmonary arteries, right and left pulmonary veins
c) right and left inferior vena cava, right and left superior vena cava
d) right and left cerebrum, right and left cerebellum

1. predict the impact if a patient were to have an issue producing leukocytes.

a) the patient would not be able to deliver oxygen to cells
b) the patients blood would continuously clot
c) the patient would not be able to fight off infections
d) the patient would not be able to feel any sensation

Explanation:

1. The mitral valve (bicuspid) has two flaps, while the tricuspid valve has three. The mitral valve is on the left side of the heart, and the tricuspid is on the right.
2. Capillaries connect arteries and veins and are responsible for gas exchange.
3. The two sides of the heart act as two separate pumps (right - pulmonary circulation, left - systemic circulation).
4. Arteries are more muscular than veins as they need to withstand higher blood pressure.
5. The left ventricle is thicker because it pumps blood to the whole body (against higher resistance compared to the right ventricle which pumps to the lungs).
6. Blood types are determined by antigens on erythrocytes (red blood cells).
7. Plasma is the liquid part of blood.
8. Thrombocytes (platelets) help in blood clotting.
9. The four chambers of the heart are the right atrium, left atrium, right ventricle, and left ventricle.
10. Leukocytes (white blood cells) are involved in fighting infections. If a patient has an issue producing them, they would have trouble fighting off infections.

Answer:

1. c) The mitral valve has two flaps
2. d) Capillaries
3. c) Act as two separate pumps
4. b) Arteries are more muscular
5. b) Because the left ventricle must pump blood against gravity to the whole body
6. a) Blood types are determined based on the antigens present on erythrocytes
7. a) In blood
8. d) they create blood clots when needed (injury repair)
9. a) Right and left atrium, right and left ventricle
10. c) The patient would not be able to fight off infections