Blood Flashcards

1
Q

Functions of blood

A

Transportation, regulation, protection

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2
Q

What does regulation do

A

Maintains body temperature

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3
Q

What is the only fluid tissue in the body

A

Blood

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4
Q

Bloods three layers

A

Erythrocytes(blood), Buffy coat, plasma

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5
Q

Ph level of blood

A

7.35-7.45

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6
Q

What does hemoglobin do

A

Gas transportation, protein that carry’s oxygen

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7
Q

What’s the formation of all blood cells

A

Hematopoiesis, occurs in red bone marrow

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8
Q

Lifespan of a red blood cell

A

100-120 days

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9
Q

What’s anemia

A

Disorder where blood has abnormal low oxygen carrying capacity

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10
Q

Most abundant WBC and what it does

A

Neutrophils, main job is to destroy bacteria

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11
Q

What WBC makes up 2-4% of all WBCs

A

Eosinophils, destroys parasitic worms

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12
Q

What’s the rarest WBC

A

Basophil causes allergies

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13
Q

What WBC is the second most common WBC

A

Lymphocytes, 25% and crucial for immunity

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14
Q

What WBC protects aginst bacteria

A

Monocytes

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15
Q

What are the three granulocytes

A

Neutrophil, eosinophil, basophil

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16
Q

Job of a platelet

A

Repairs damaged blood vessels

17
Q

Three steps of hemostasis

A

Vascular spasm, platelet plug formation, coagulation

18
Q

What’s hemostais

A

Fast series of reactions that stop bleeding

19
Q

What’s an antigen

A

Anything perceived as foreign that can generate an immune response

20
Q

What does the Rh antigen mean

A

+ means blood is positive, - means blood is negative

21
Q

What wbc destroys damaged rbcs

A

Macrophages

22
Q

Where is the apex

A

Bottom of the heart, points towards left hip

23
Q

what does Systemic mean

A

Deoxygenated

24
Q

What’s the strongest part of the heart

A

Left ventricle

25
Q

What’s the pericardium

A

Double walled sac that surrounds the heart

26
Q

Three layers of heart wall (from superficial to deep)

A

Epicardium, myocardium, endocardium

27
Q

What is the receiving chamber

A

The atria

28
Q

What are the two major valves

A

Atrioventricular and semilunar

29
Q

What is the right AV valve

A

Tricuspid valve

30
Q

What is the left AB valve

A

Bicuspid valve

31
Q

What do the two SL valves do

A

Prevent back flow into major arteries back into ventricles

32
Q

What’s the sequence of excitation

A

SA node, AV node, AV bundle, bundle branches, purkunjie fibers

33
Q

Where and what is the pacemaker of the heart

A

SA node, in the right atrium

34
Q

What happens during a p wave

A

Depolarization of SA node and atria

35
Q

What happens during qrs wave

A

Ventricular depolarization and atria repolarization

36
Q

What happens during a T wave

A

Ventricular repolarization

37
Q

What does the first sound mean in a heart beat

A

Closing of the AV valves

38
Q

What’s the second sound in a heart beat

A

Closing of the SL valves

39
Q

What’s a heart murmur

A

Back flow of blood