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Yr9 Biology > unit 1 The Cardiovasular System > Flashcards

unit 1 The Cardiovasular System Flashcards

1
Q

The circulatory system is the body’s …. System

A

Transport

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2
Q

What is the body’s transport system called

A

Circulatory system

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3
Q

The circulatory system consists of…

A

The heart, blood vessels and the blood

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4
Q

There are actually… separate circulatory systems; one ….

A

2, carries blood from the heart to the lungs garthering oxygen then back to the heart to the second system which carried the oxygenated blood round the body to give the cells nutrients then back to the heart and repeat

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5
Q

When the heart muscle relaxes… then the… contracts causing… then the… contract causing,… they take the blood to..

A

Blood flows through the veins into the left atrium from the lungs and the right atrium from the body, atria, the blood to be squeezed into the ventricles, ventricles, the blood to be forced into the 2 arteries, the body and the lungs.

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6
Q

Why can’t the blood flow backwards

A

The valves stop them

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7
Q

Write out the order the blood goes through the body

A

Look in book

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8
Q

LORD stands for.. and helps u remember…

A

Left Oxygenated Right Deoxygenated, which side of the heart has oxygenated and deoxygenated blood flowing through it

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9
Q

Draw a labelled disagram of the heart

A

Look in book

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10
Q

Veins go.. the heart

A

Into

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11
Q

Artery’s go… from the heart

A

Away

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12
Q

Pulmonary means..

A

The lungs

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13
Q

The heart is mostly made of…

A

Cardiac muscle

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14
Q

What is the function of an artery, is the blood oxygenated or not?

A

Carries blood at a high pressure from the heart to organs, oxygenated (other than pulmonary artery)

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15
Q

Draw a labelled diagram of an arteries and say it’s size

A

In book

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16
Q

Describe an artery’s structure and what the features do and does it have valves?

A

-thick walls-helps carry at high pressure
-lots of elastic tissues near heart- maintain pressure
-no valves
-larger size
-narrower lumen

17
Q

functions of a capillary

A

substance exchange - where oxygen and carbon dioxide is exchanged

18
Q

draw a capillary and say it’s size

A

in book

19
Q

describe the structure of a capillary and what the features do

A

-1 cell thick walls to allow diffusion
-very small lumen diameter
-no valves

20
Q

functions of a vein

A

carries blood from organs to the heart

21
Q

is the blood in veins oxygenated

A

deoxygenated other than the pulmonary vein

22
Q

draw a diagram of a vein and say it’s size

A

in book

23
Q

describe the structure of a vein and what the features do

A

-valves- stop the blood from flowing backwards
-large size-helps more blood flow through
-thin walls-low pressure
- the surrounding muscles tense which is want makes the blood go through the vein

24
Q

blood pressure is measured in..

A

mmHg

25
Q

what are the 2 types of blood pressure

A

systolic and diastolic

26
Q

systolic blood pressure is when..

A

the blood is flowing through the artery (pulse), highest blood pressure, when the left ventricle contracts to pump blood through the aorta

27
Q

diastolic blood pressure is when..

A

there isn’t blood flowing through the artery, the blood pressure is lower, when the heart is relaxed and filling with blood

28
Q

the typical blood pressure is between..

A

90/60mmHg and 120/80mmHg

29
Q

blood pressure is..

A

the force of blood per unit area as it travels through the blood vessels

30
Q

as the … ventricle contracts, an … in blood pressure caused the … to expand and contract which can be felt as a … in the major arteries

A

left, increase, aorta, pulse

31
Q

what happens to the aorta when the left ventricle contracts

A

it expands and contracts

32
Q

draw a diagram of blood

A

in book

Yr9 Biology (19 decks)

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