exam 4

Question 1

What are the components of the blood?

Answer 1

Leokocytes, Platelets, Erthtocytes, and plasma

Question 2

Anemia

Answer 2

Either the percentage of erythrocytes is lower than normal or the
oxygen-carrying capacity is reduced

Question 3

Characteristics of Leukocytes?

Answer 3

Defend against pathogens, Contain nucleus (but no hemoglobin),

Question 4

Platelets

Answer 4

Small membrane enclosed cell fragments. No nucleus, important in blood clotting. 30% is stored in the spleen. They circulate the blood for 8 to 10 days and then they are recycled.

Question 5

What is hemostasis

Answer 5

stopping of bleeding

Question 6

What happens in the right side of the heart?

Answer 6

Right Atrium: receives deoxygenated blood, from the body
Right Ventricle: Pumps deoxygenated blood to the lungs.

Question 7

What happens on the left side of the heart?

Answer 7

Left atrium: receives oxygenated blood from the lungs
Left ventricle: pumps oxygenated blood to the body

Question 8

Atrioventricular valves

Answer 8

between the atrium and the ventricle

Question 9

Semilunar Valves

Answer 9

between the ventricle and an arterial trunk

Question 10

Right AV valve

Answer 10

tricuspid

Question 11

Left AV valve

Answer 11

bicuspid or mitral valve

Question 12

Coronary sulcus

Answer 12

separates atria from the ventricles

Question 13

Epicardium

Answer 13

Visceral layer of the serous pericardium
- outermost heart layer
- simple squamous epithelium

Question 14

Myocardium

Answer 14

-middle layer of the heart
- cardiac muscle tissue that contracts to pump blood