unit 4

Question 1

erythrocytes

Answer 1

Red blood cells
Anucleated- have no nucleus
No organelles so there is more room for oxygen
Packed with Hemoglobin
5 million in 1 mL of blood

Question 2

Hemoglobin

Answer 2

1 hemoglobin carries 4 oxygen
Made of iron

Question 3

Leukocytes

Answer 3

White blood cells
Has a nucleus
Kills bacteria, viruses, and cancer cells
Can go in and out of blood vessels
4,000-11,000 white blood cells in 1 mL of blood
Can double WBC count in 1 hour

Question 4

Hematopoiesis

Answer 4

Process of making blood
Has hemocytoblasts
Controlled by hormones (Erythropoietin, Thrombopoietin, Interleukin)

Question 5

Hemocytoblasts

Answer 5

Stem cells that make blood

Question 6

Erythropoietin

Answer 6

RBC
High altitude

Question 7

Thrombopoietin

Answer 7

Platelets
Football players with bruises

Question 8

Interleukin

Answer 8

WBC
sick

Question 9

Pulmonary Circuit

Answer 9

Connects right ventricle to lung to left atrium

Question 10

Systemic Circuit

Answer 10

Connects left ventricle to body to right atrium

Question 11

4 chambers of the heart

Answer 11

Left ventricle, right ventricle, left atrium, right atrium

Question 12

Tricuspid valve

Answer 12

Valve between right atrium and right ventricle

Question 13

Bicuspid valve

Answer 13

Valve between left atrium and left ventricle

Question 14

Pericardium

Answer 14

Loose sack around the heart

Question 15

Epicardium

Answer 15

Tight membrane around heart

Question 16

Myocardium

Answer 16

muscle layer

Question 17

Endocardium

Answer 17

Inside layer of heart, smooth, blood slides through, no friction

Question 18

LDL Cholesterol

Answer 18

Bad Cholesterol

Question 19

HDL Cholesterol

Answer 19

Good Cholesterol

Question 20

Arteries

Answer 20

Have muscles around it
Red
Bring blood away from the heart
Higher blood pressure

Question 21

Veins

Answer 21

No muscles
Blue
Bring blood to the heart
Low blood pressure
One way valves
Varicose veins- valve breaks and fills with blood