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Health Science~20 > Heart > Flashcards

Heart Flashcards

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Biology 101 flashcards
1
Q

3 ways lungs are adaptive for gas exchange

A

Huge surface area
Lots of capillaries
One cell thick

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2
Q

Normal oxygen saturation

A

95% to 100%

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3
Q

Life threatening oxygen saturation

A

Below 70%

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4
Q

Resperation

A

The release of energy from food

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5
Q

Aerobic resperation

A

Uses up oxygen

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6
Q

2 things needed for aerobic respiration

A

Oxygen and glucose

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7
Q

Release of oxygen during cellular respiration

A

C6 H12 O6+ 6 O2 —> 6 CO2 + 6H2O atp

Glucose + oxygen —> carbon dioxide + water

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8
Q

Glucose comes from…

A

The digestive system

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9
Q

Oxygen comes from

A

Lungs

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10
Q

We get rid of carbon dioxide from

A

Exhaling

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11
Q

Smoking causes

A

Cancer and emphysema

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12
Q

Emphysema

A

Alveoli become dry and brittle until it eventually ruptures

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13
Q

Cancer’s

A

CO2 affects the CO2 diffusion gradient

Carcinogenic chemicals can trigger Tumors

Toxic nicotine paralyzed cilia which normally clean the lungs

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14
Q

How much blood is in the human body

A

5.6 litres

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15
Q

Cystic fibrosis

A

Mutation of a single gene which controls salt balance in the lungs

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16
Q

Cardiac muscles on walls of heart

A

Myocardium

17
Q

Myocardium

A

Walls of heart are made up of it

Only found in heart

Never tired but can’t handle lack of CO2

18
Q

Pericardium

A

Encloses the heart

19
Q

Pericardial fluid

A

In between heart and pericardium to aid movements

20
Q

Valves

A

Prevent back flow of veins

21
Q

Septum

A

Separates oxygenated blood and non oxygenated blood

22
Q

Siptolic

A

Phase in the heart where it contracts

Blood pressure rises

23
Q

Diastolic

A

Heart releases

Blood pressure falls

24
Q

Things that raise blood pressure

A

Full bladder
Talking
Alcohol
Caffeine
Smoking

25
Q

Arteries

A

Thick elastic walls to withstand high blood pressure

Take blood away from heart

26
Q

Capillary

A

Allow food and oxygen to pass into body cells and allow waste products out

One cell thick

27
Q

Veins

A

Take blood to heart

Thinner valves than arteries

Valves prevent back flow

28
Q

Red blood cells

A

Carry oxygen and nutrients

29
Q

White blood cells

A

fights off diseases

30
Q

Plasma

A

Proteins carry oxygen and nutrients

31
Q

Platelets

A

Heal wounds and clots blood

32
Q

Sickle cell anemia

A

Deformed red blood cell can’t carry enough oxygen

33
Q

Hemophilia

A

Blood doesn’t clot properly

34
Q

Scientific name for red blood cells

A

Erythrocytes

35
Q

Erythrocytes

A

Red blood cells

36
Q

White blood cells

A

Phalagocytes
Lymphocytes

37
Q

Phalagocyte

A

White blood cell

38
Q

Lymphocytes

A

White blood cells

Health Science~20 (4 decks)

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