Circulatory System Flashcards

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1
Q

Made up of cardiac muscles that are involuntary and contains a large number of nuclei in order to compensate for the large amount of energy, in the form of ATP, to pump blood throughout the body.

A

Heart

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2
Q

Ventricles are separated by the_____?

A

Interventricular septum

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3
Q

Muscles of the ventricles are thicker than that of the atria because?

A

Chambers are responsible for the pump of blood to the anterior and posterior portion of the body.

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4
Q

Left ventricle is thicker than the right because?

A

Responsible for pumping blood to the rest of the body

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5
Q

Prevents the backflow of blood to the previous chambers

A

Valves

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6
Q

Found in the right portion of the heart

Separates the right atrium and ventricle

A

Tricuspid valve

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7
Q

Found in the left portion of the heart

Separates the left atrium and ventricle

A

Bicuspid (Mitrial) valve

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8
Q

Rhythmic contraction of the heart is regulated by?

-Generates impulses

A

Sino-Atrial Node /SA Node

Pacemaker

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9
Q

Serves as the network that conveys blood all throughout the body.

A

Blood Vessels

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10
Q

Ability of the blood vessels to constrict or dilate

A

Vasomotion(Vasoconstriction/Vasodilation)

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11
Q

Exchange of gases and waste materials

A

Capillaries

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12
Q

Deoxygenated blood from the inferior and superior vena cava -> Right Atrium -> Tricuspid valve -> Right Ventricle -> Pulmonary artery -> Lungs -> Pulmonary vein -> Left atrium

A

Pulmonary Circulatory

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13
Q

Left atrium -> Bicuspid valve -> Left ventricle -> Aorta -> Rest of the body -> Superior/ Inferior vena cava -> Right atrium

A

Systemic Circulation

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14
Q

Types of semilunar valves

A

Pulmonary valves

Aortic valves

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15
Q

The impulse pause (__) at the atrioventricular (AV) node

A

0.1 s

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16
Q

Connects the atria to the ventricles

A

AV Bundle

17
Q

Conduct the impulses through the inter-ventricular septum

A

Bundle brances

18
Q

Depolarize the contractile cells of both ventricles.

A

Purkinje Fibers

19
Q

Carry blood away from the heart

-Thicker walls from high pressure

A

Artery

20
Q

Carry blood towards the heart

A

Veins