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Biology: Human Cardiovascular system > THE HEART > Flashcards

THE HEART Flashcards

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1
Q

What is the heart

A

Hollow, double pump

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2
Q

What is the hearts function?

A

Keeps blood circulating in blood cells around the body.

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3
Q

How many chambers does it have?

What does it include?

A

It has 4 and includes valves and blood vessels

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4
Q

What is the septum?

A

A strong macular wall.

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5
Q

What does the septum do?

A

Separates the Valves and blood vessels and it can deal with oxygenated blood and deoxygenated blood simultaneously

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6
Q

How many times does it beat in a minute

A

72 times

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7
Q

What controls the increase and decrease of your heartbeat?

A

THE BRAIN

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8
Q

What are the 4 chambers called?

A

The Atrium and Vnetricle

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9
Q

Describe the Atria?

A

Has a thin wall

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10
Q

What is the Atria’s function?

A

Pumps blood to the Ventricles assisted by gravity.

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11
Q

What does the Right Atria do?

A

Receives blood from the head and arms through superior vana cava and from lower body regions, the inferior vena cava gets it.

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12
Q

What does the Left Atria do?

A

Receives blood from left and right lung through Pulmonary veins(2 in each lung)

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13
Q

Where do the Ventricles receive blood?

A

The two Atria’s

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14
Q

Describe the walls of the Ventricles?

A

Thick

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15
Q

What is the effect of the walls being too thick and muscular?

A

It bulges out towards the left side of the chest cavity

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16
Q

What does Right Ventricle do?

A

receives deoxygenated blood through pulmonary artery to the left lungs

17
Q

What does the Left Ventricle do?

A

receives oxygenated blood from left atrium. then gets pumped through aorta to all parts of the body.

18
Q

How many vales are there in the heart?

What do they control?

A

4

the on way flow of blood through chambers of the heart

19
Q

Right Ventricle-where?

how many cusps and how secured?

A

Between right Atrium and ventricle
3
by tendonous cords to the wall of the right atrium

20
Q

Left Ventricle: where?

A

Between left atrium and ventricle

21
Q

Pulmonary valves: Where?
how many cusps?
Shape? Called?
Prevents what?

A

at entrance to pulmonary artery
2(moon shaped)-Semi-lunar valve
backflow through contractions of the heart

22
Q

Aortic valve: Where?

Function?

A
  1. At entrance to Aorta

Semi lunar valve, prevents backflow from Aorta after condition of the heart.

Biology: Human Cardiovascular system (1 decks)

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