Heart/blood Flashcards

1
Q

Higher volume. Full and relaxed

A

EDV

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2
Q

Blood volume leaving the heart

A

SV

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3
Q

SV=

A

EDV-ESV

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4
Q

Increased venous return=

A

Increased preload

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5
Q

Pushes back on heart. Influences stroke volume

A

Afterload

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6
Q

Increased afterload=

A

Decreased stroke volume= increased ESV

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7
Q

Cardiac output=

A

HRxSV

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8
Q

Maximum venous return=

A

EDV

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9
Q

What are the three types of plasma proteins

A

– Osmotic pressure
– Clotting
– Globulins

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10
Q

Globulins are produced by

A

B lymphocytes

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11
Q

Hematocrit=

A

(RBC h/whole h) x100

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12
Q

Process of producing red blood cells. Stimulated by tissue hypoxia

A

Erythropoiesis

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13
Q

Most numerous white blood cell. Phagocytic

A

Neutrophil

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14
Q

WBC. Allergic reactions. Parasites

A

Eosinophil

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15
Q

Least numerous white blood cell. Histamine, heparin

A

Basophil

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16
Q

WBC. Phagocytic. Differentiate into macrophages

17
Q

WBC. Produce anti-bodies. Humoral immunity

A

B lymphocytes

18
Q

WBC. Cell mediated immunity

A

T lymphocytes

19
Q

Gets built into blood clot

A

Plasminogen

20
Q

Breaks up clot when no longer needed

21
Q

Murmur with stiff narrowed valve. Whistling sound

A

Stenotic murmur

22
Q

Murmured with leaky valve-Backflow. Swish/gargle sound

A

Insufficient murmur

23
Q

Mechanical Junction that anchors cells together

A

Desmosomes

24
Q

Spreads action potentials. Tunnel allows all cells to contract at once

A

Gap junctions

25
Cells that work to pump blood
Contractile cells
26
Cells that initiate and spread action potentials. Pacemaker activity
Autorhythmic cells
27
What is the order of cardiac electrical activity
– SA node – AV node – Bundle of his – Purkinje fibers
28
P-R
Atria contract
29
S-T
Ventricles contract
30
SA node is causing atria to contract
Ventricular filling
31
AV node – his – Purkinje
Isovolumetric ventricular contraction
32
Volume decreases as blood is pumped out of ventricle
Ventricular ejection
33
Repolarization of ventricles
Isovolumetric relaxation
34
Extrinsic cardiac controls
– ANS | – Hormones
35
Impedance to bloodflow in arteries. Afterload
Total peripheral resistance
36
Strength of ventricular contraction
Contractility
37
More blood in equals more blood out
Frank Starling law
38
Lower volume. After ejection/contraction
ESV