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Biology-Organisation > The Heart And Blood Vessels > Flashcards

The Heart And Blood Vessels Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What takes place in the right ventricle?

A

Gas exchange

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2
Q

What does the left ventricle do?

A

Pumps blood around the rest of the body

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3
Q

The heart is an ________ that pumps blood around the body in a ________ circulatory system

A

Organ

Double

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4
Q

What are artificial pacemakers?

A

Electrical devices used to control irregularities in the heart rate

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5
Q

What is the natural resting heart rate controlled by?

A

A group of cells located in the right atrium that acts as a pacemaker

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6
Q

What are the three types of blood vessel?

A

Arteries
Veins
Capillaries

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7
Q

What needs to be maintained for efficient gas exchange?

A

A high concentration gradient in the alveoli of the lungs

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8
Q

Diffusion needs energy.

True or False?

A

False.

Diffusion DOESN’T need energy

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9
Q

What does oxygen and haemoglobin make?

A

Oxyhaemoglobin

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10
Q

How are the lungs adapted for gas exchange?

Alveoli specifically

A
  • The alveoli are very thin-one cell thick
  • Covered by a network of fine capillaries, enabling gas to pass almost directly between the lungs and bloodstream
  • Large combined surface area, allowing large amounts of gas to be exchanged with each breath
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11
Q

Aorta takes blood ___ the body
Pulmonary artery takes blood to the _____
_______ _____ brings blood from the body
Pulmonary vein brings blood from the ____

A

To
Lungs
Vena cava
Lungs

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12
Q

What is a coronary artery?

A

An artery supplying blood to the heart

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13
Q

What is another name for the trachea?

A

Windpipe

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14
Q

What are the bronchi the main passage to?

A

The lungs

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15
Q

What takes place within the alveoli?

A

Gas exchange

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16
Q

Why is the alveolis capillary network important?

A

Each alveolus is surrounded by capillaries which ensure a good blood supply. This is important as the blood is constantly taking oxygen away and bringing in more carbon dioxide - which helps to maintain the maximum concentration gradient between the blood and the air in the alveoli.

17
Q

As the bronchi start to divide and get smaller and closer to the lung tissue, what are they called?

A

Bronchioles

18
Q

What is the rate calculation for blood flow?

A

Time

19
Q

______ _________
Pulmonary ________
A______
Pulmonary _________

A

Vena cava
Artery
Aorta
Vein

20
Q

______ _________
Pulmonary ________
A______
Pulmonary _________

A

Vena cava
Artery
Aorta
Vein

Biology-Organisation (9 decks)

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