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Biology 4th form > Heart respiratory system > Flashcards

Heart respiratory system Flashcards

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1
Q

What is blood made from

A

Plasma
Red blood cell
White blood cell
Platelets

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1
Q

What is blood made from

A

Plasma
Red blood cell
White blood cell
Platelets

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2
Q

Function of plasma

A

Carry’s an eray of protein
Slows bleeding and clotting
Fluid that carries red white blood cells and platelets as well as transporting hormones and antibodies

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3
Q

Function of platelets

A

Stop bleeding.
Help heal
Provide seal for bleeding

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3
Q

Function of platelets

A

Stop bleeding.
Help heal
Provide seal for bleeding

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4
Q

Function of white blood cells

A

Defend against diseases
Ingest pathogens and produce antibodies to destroy pathogens
Produce antitoxins

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4
Q

Function of white blood cells

A

Defend against diseases
Ingest pathogens and produce antibodies to destroy pathogens
Produce antitoxins

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5
Q

Function of red blood cell

A

Carry oxygen and nutrients
Contain haemoglobin helps transport oxygen from lungs
No nucleus
Biconcave shape

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6
Q

What are the function of artery’s

A

Carry blood away from heart to organs
Have elastic tissue so can be stretched under high pressure
Thickest wall
Smallest lumen

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7
Q

Function of veins

A

Carry blood to gour heart
Usually hold deep purple red deoxygenated blood
Valves to prevent back flow of blood
Thinner wall larger lumen

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8
Q

Function of capillaries

A

Form network linking veins and arteries
One cell thick wall
Smallest blood vessel

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9
Q

Function aorta

A

Carry’s blood from heart to body

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10
Q

Function of pulmonary artery

A

Carry’s blood from heart to lungs

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11
Q

Function of pulmonary vein

A

Carry’s blood from lungs to heart

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12
Q

What’s the briscuspid

A

A valve

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13
Q

Function of septum

A

Prevent mixing of deoxygenated and oxygenated blood

14
Q

Function of pulmonary valves

A

Prevent back flow of blood

15
Q

Function of vena cava

A

Carry’s blood from the body to the heart

16
Q

Function of coronary vein

A

Carries co2 and metabolic waste away from cardiac muscles

17
Q

Function of coronary artery

A

Carries oxygen and glucose to cardiac muscles

18
Q

What is the double circulatory system

A

Pulmonary circulation
Right side of the heart pumps blood to lungs for gas exchange
Systematic circulation
Left side of heart pumps blood to other parts of body under high pressure

19
Q

What does myogenic mean

A

It can initiate its own contraction

20
Q

What is the natural resting heart rate controlled by

A

The pacemaker

21
Q

Where is the pacemaker found

A

In the right atrium

22
Q

What does the pacemaker do

A

Sends out electrical impulses to the atrial wall causing the atria to contract blood therefore flows from the atria to the ventricle

23
Q

What is the airflow

A

Inhaled air
Trachea
Bronchus
Bronchiole
Alveoli

24
Q

What is inhalation

A

The movement of air into the lungs

25
Q

What is exhalation

A

The movement of air out of the lungs

26
Q

What is in the respiratory system

A

Nasal cavity
Trachea
Pleura cavity
Lungs
Bronchus
Bronchiole
Intercostal muscles
Diaphragm
Alveoli

27
Q

What is the 6 steps of inhalation

A

External intercostal muscles contract
Rib cage moves up and out
Diaphragm contracts and flattens
Volume of thorax increases
Pressure inside thorax decreases
Air is drawn into lungs

28
Q

What are the 6 steps of exhalation

A

Intercostal muscles expand and relax
Rib cage moves down and in
Diaphragm relaxes becomes dome shape
Volume of thorax decreases
Pressure inside thorax increases
Air is moved out of the lungs

29
Q

What percentage of co2 oxygen nitrogen is in inhaled air

A

Co2 0.04%
Oxygen 21%
Nitrogen 78%

30
Q

What percentage of co2 oxygen nitrogen in exhaled air

A

Co2 4%
Oxygen 16%
Nitrogen 78%

31
Q

Is there more or less water vapour in inhaled air

A

Less

32
Q

What is the chemical equation for respiration

A

Glucose + oxygen arrow co2 water energy
C6H12O6+6O2 ARROW 6CO2 + 6H2O

33
Q

What is the order of gas exchange

A

Biology 4th form (11 decks)

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