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TEAS Science Study > Cardiovascular > Flashcards

Cardiovascular Flashcards

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1
Q

What are the functions of the cardiovascular system?

A

Transport oxygen
Nutrients
Hormones
Ions
Fluids
Remove metabolic waste

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2
Q

What happens in cellular respiration?

A

Glucose is burned or combined with oxygen.

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3
Q

Equation for Cellular Respiration

A

C6H12O6

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4
Q

Cardiovascular System’s role in thermoregulation

A

Heat Exchange at the skin’s surface where blood vessels constrict or dilate in response to signals from the brain.

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5
Q

Human Body’s average temperature

A

98.6 degree Fahrenheit (37) degrees celsius

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6
Q

Role of thermoreceptors (Sensory Neurons)

A

To detect changes in temperature and send impulses to the hypothalamus

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7
Q

Role of the hypothalamus relating to the cardiovascular system

A

Sends signals to the effectors (the smooth muscles that surround cutaneous arterioles)

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8
Q

What happens if the body temperature is too warm?

A

The smooth muscle relaxes and the arterioles dilate.

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9
Q

Vasodilation

A

Allows more blood to flow through the capillary beds near the surface of the skin and more heat is lost to the surroundings.

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10
Q

What happens if the temperature is too cool?

A

the smooth muscle contracts and the arterioles constrict

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11
Q

Vasoconstriction

A

reduces the volume of blood that flows near the body’s surface which minimizes heat loss to the surroundings.

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12
Q

3 Tissue Layers of the wall of the Heart

A

Epicardium
Myocardium
Endocardium

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13
Q

Epicardium

A

protects the heart and secretes lubricating serous fluid.

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14
Q

Myocardium

A

A muscle layer contracts to pump blood

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15
Q

Endocardium

A

The innermost layer which lines the chambers and valves.

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16
Q

Four chambers of the heart

A

Right atrium
Left atrium
Right ventricle
Left ventricle

17
Q

The right “receiving” atrium

A

receives blood from the vena cava.

18
Q

The left “receiving “ atrium

A

receives blood from the pulmonary veins

19
Q

The right “discharging” ventricle

A

Pumps blood into the pulmonary trunk

20
Q

left “discharging” ventricle

A

Pumps blood into the aorta.

21
Q

Tricuspid valve/ Right atrioventricular valve

A

Prevents backflow into the atrium when the ventricle contracts

22
Q

Pulmonary Semilunar valve

A

prevents the return of blood into the right ventricle

23
Q

Bicuspid Valve/ Mitral Valve /left AV valve

A

Prevents the blood from entering the left atrium when the ventricle contracts

TEAS Science Study (3 decks)

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