info on heart and circulation unit 2

Question 1

Blood is a type of _____________ tissue

Answer 1

Connective

Question 2

Blood is made up of what

Answer 2

1. Plasma 55%

2. Cells @ Cell Fragments 45%

Question 3

Plasma is __________ part of blood

Answer 3

Liquid

and 91% water

Question 4

______________responsible for formation of blood clots

Answer 4

Fibrinogen

Question 5

Serum is plasma without the ________factors

Answer 5

Clotting

Question 6

Do RBCs and platelets have a nuclei

Answer 6

No

Question 7

Process of blood cell production

Answer 7

Hematopoiesis

Question 8

RBCs are about 700 times more numerous than__________________

Answer 8

WBCs

Question 9

_______cannot move on their own. Moved by forces that cause blood to circulate

Answer 9

Red Blood Cells

Question 10

Main component of red blood cells

Answer 10

Hemoglobin

Question 11

Pigmented protein that accounts for the blood’s color

Answer 11

Hemoglobin

Question 12

Primary function of Red Blood Cells

Answer 12

To transport oxygen from lungs to various body tissues AND to transport carbon dioxide from tissue to lungs

Question 13

Iron is necessary for the normal function of __________

Answer 13

Hemoglobin

Question 14

What stimulates red blood cell production

Answer 14

Low Oxygen Levels

Question 15

_____________stimulates red bone marrow to produce more red blood cells

Answer 15

Erythropoietin

Question 16

WBCs lack ______________

Answer 16

Hemoglobin

Question 17

___________are WBCs with large cytoplasmic granules and a lobed nuclei

Answer 17

Granulocytes

Question 18

Facts about WBCs:

Answer 18

1. Protect body against invading microorganisms
2. Remove dead cells @ debris from the body
3. The are motile (they can move)

Question 19

5 Types of WBCs:

Answer 19

1. Neutrophils
2. Eosinophils
3. Basophils
4. Lymphocytes
5. Monocytes

Question 20

1. Usually first to respond to infection

2. Destroy certain bacteria

Answer 20

Neutrophils

Question 21

Most common in blood of people with allergic reactions

Answer 21

Eosinophils

Question 22

1. Increase in number in both allergic @ inflammatory reactions
2. Contain large amounts of Heparin(inhibits blood clotting)

Answer 22

Basophils

Question 23

1. Important role-Immunity

2. Form cells that produce proteins called Antibodies

Answer 23

Lymphocytes

Question 24

1. Largest of WBCs
2. Transform into macrophages
3. Associated with chronic infection
4. They phagocytize bacteria

Answer 24

Monocytes

Question 25

__________ cells fght infection

Answer 25

White Blood

Question 26

________cells transport oxygen throughout body

Answer 26

Red Blood

Question 27

Platelets also called_____________

Answer 27

Thrombocytes

Question 28

Facts about platelets (thrombocytes):

Answer 28

1. Play important role in controlling blood loss 3. Produced in red marrow @ derived from Megakaryocytes 4. Form platelet plugs 5. Promote the formation and contraction of clots that help seal larger wounds in vessels

Question 29

Series of events that help stop excessive blood loss:

Answer 29

1. Vascular spasms 2. Platelet plug formation 3. coagulation CAN LEAD TO HEMOSTASIS

Question 30

A blood clot is :

Answer 30

A network of threadlike protein fibers called FIBRIN

Question 31

Clot formation requires what vitamin

Answer 31

Vitamin K

Question 32

Prevents Clotting

Answer 32

Anticoagulents

Question 33

Only vessels that provide direct access to nearly every cell in the the body

Answer 33

Capillaries

Question 34

Thick walled, 3 Layers, elastic vessels for high pressure blood

Answer 34

Arteries

Question 35

Resistance vessels, less elastic, more muscular, large changes in diameter

Answer 35

Arterioles

Question 36

Thinnest walled, smallest diameter vessels for exchange

Answer 36

Capillaries

Question 37

Drain capillaries, has endothelium and some vascular smooth muscle, participate in exchange

Answer 37

Venules

Question 38

Thinner walled, 3 layers, large diameter vessels for returning low pressure blood back to heart

Answer 38

Veins

Question 39

The wall of heart are made up of 3 Layers

Answer 39

The outer + inner layers made of Epithelial Tissue | Middle Layer made of Cardiac Muscle

Question 40

Facts about Heart

Answer 40

The heart is basically 2 pumps sitting side by side. If functions as 2 pumps inside one. Right side-pumps deoxgenated blood from body to lungs. Left Side-pumps oxygenated blood from lungs to rest of body. It also carries electrical signals instructing the ventricles when to contract.