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HOE > info on heart and circulation unit 2 > Flashcards

info on heart and circulation unit 2 Flashcards

1
Q

Blood is a type of _____________ tissue

A

Connective

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2
Q

Blood is made up of what

A
  1. Plasma 55%

2. Cells @ Cell Fragments 45%

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3
Q

Plasma is __________ part of blood

A

Liquid

and 91% water

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4
Q

______________responsible for formation of blood clots

A

Fibrinogen

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5
Q

Serum is plasma without the ________factors

A

Clotting

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6
Q

Do RBCs and platelets have a nuclei

A

No

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7
Q

Process of blood cell production

A

Hematopoiesis

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8
Q

RBCs are about 700 times more numerous than__________________

A

WBCs

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9
Q

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

A

Red Blood Cells

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10
Q

Main component of red blood cells

A

Hemoglobin

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11
Q

Pigmented protein that accounts for the blood’s color

A

Hemoglobin

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12
Q

Primary function of Red Blood Cells

A

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

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13
Q

Iron is necessary for the normal function of __________

A

Hemoglobin

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14
Q

What stimulates red blood cell production

A

Low Oxygen Levels

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15
Q

_____________stimulates red bone marrow to produce more red blood cells

A

Erythropoietin

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16
Q

WBCs lack ______________

A

Hemoglobin

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17
Q

___________are WBCs with large cytoplasmic granules and a lobed nuclei

A

Granulocytes

18
Q

Facts about WBCs:

A
  1. Protect body against invading microorganisms
  2. Remove dead cells @ debris from the body
  3. The are motile (they can move)
19
Q

5 Types of WBCs:

A
  1. Neutrophils
  2. Eosinophils
  3. Basophils
  4. Lymphocytes
  5. Monocytes
20
Q
  1. Usually first to respond to infection

2. Destroy certain bacteria

A

Neutrophils

21
Q

Most common in blood of people with allergic reactions

A

Eosinophils

22
Q
  1. Increase in number in both allergic @ inflammatory reactions
  2. Contain large amounts of Heparin(inhibits blood clotting)
A

Basophils

23
Q
  1. Important role-Immunity

2. Form cells that produce proteins called Antibodies

A

Lymphocytes

24
Q
  1. Largest of WBCs
  2. Transform into macrophages
  3. Associated with chronic infection
  4. They phagocytize bacteria
A

Monocytes

25
Q

__________ cells fght infection

A

White Blood

26
Q

________cells transport oxygen throughout body

A

Red Blood

27
Q

Platelets also called_____________

A

Thrombocytes

28
Q

Facts about platelets (thrombocytes):

A
  1. Play important role in controlling blood loss
  2. Produced in red marrow @ derived from Megakaryocytes
  3. Form platelet plugs
  4. Promote the formation and contraction of clots that help seal larger wounds in vessels
29
Q

Series of events that help stop excessive blood loss:

A
  1. Vascular spasms
  2. Platelet plug formation
  3. coagulation

CAN LEAD TO HEMOSTASIS

30
Q

A blood clot is :

A

A network of threadlike protein fibers called FIBRIN

31
Q

Clot formation requires what vitamin

A

Vitamin K

32
Q

Prevents Clotting

A

Anticoagulents

33
Q

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

A

Capillaries

34
Q

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

A

Arteries

35
Q

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

A

Arterioles

36
Q

Thinnest walled, smallest diameter vessels for exchange

A

Capillaries

37
Q

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

A

Venules

38
Q

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

A

Veins

39
Q

The wall of heart are made up of 3 Layers

A

The outer + inner layers made of Epithelial Tissue

Middle Layer made of Cardiac Muscle

40
Q

Facts about Heart

A

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.

HOE (55 decks)

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