Year 8 ~ The human Body Flashcards

1
Q

What components can be found in blood

A

Oxygen, platelets, white blood cells, plasma, haemoglobin, red blood cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

describe them)

White blood cells are

A

Large and squishy when fighting a virus they engulf the bad cells and kill them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is good about platelets

A

Like oats they can clump together to form a clot and stop bleeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where are red blood cells made

A

Inside bone marrow then they see pout through your porous bones into the bloodstream

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Oxygen binds to haemoglobin and red blood cells to form what

A

Oxyhaemoglobin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What percentage of your blood is plasma

A

55%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

White blood cells destroy what

A

Pathogens and antigens which cause disease symptoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What was the percentage of your blood is red blood cells

A

44%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Plasma…

A

Contains water and is made in the liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What percentage of your blood is white blood cells and platelets

A

1%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why do we need a circulatory system

A

We need a circulatory system because it delivers oxygen around the body to the organs which require that to operate and they perform basic functions we need to survive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does the heart consist of

A

The heart consists of a pump (the heart) blood vessels and blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Blood goes from the heart to where?

A

The lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What does the right side of the heart do

A

pushes blood to the lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what does the left side of the heart do

A

pushes blood to all organs in the body except the lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

why does the left side of the heart have a thicker muscle wall?

A

the left side of the heat has a thicker muscle wall because it has to pump blood all around the body which requires a greater force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what are heart chambers called?

A

ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

why are heart valves important?

A

because the make sure blood doesnt go backwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what sets the rhythm of the beating in the heart and when?

A

a pacemaker sets the beating of the heart and is formed about 6 weeks after the ovum is fertilised

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what do blood vessels do ?

A

blood vessels carry the blood around the body to each organ and take it back to the heart

21
Q

what gas diffuses into the cells from the bloodstream

A

carbon dioxide

22
Q

what diffuses out from the cells in blood ?

A

Oxygen and Glucose

Why? because this seepsout to the organs, which need oxygen and glucuose

23
Q

arteries carry blood ______ from the _______.

A

Away, heart

24
Q

What are the names and functions of the major organs in humans?

A

Heart - pump blood around the body
Lungs - give oxygen to your blood for the organs
Liver: Processes nutrients, breaks down bad stuff, and produces bile for digestion.
Kidneys: Filter blood to produce urine, regulate fluid balance and electrolytes.
Brain - control your bodys fuctions

25
Q

What are organs made from?

26
Q

Describe the functions of the skeleton

A

To hold the body up and protect the organs

27
Q

Name and locate some of the major bones in the human body.

A

femur - thigh bone
patella - knee cap
phalanges - toe bones

28
Q

What are bones moved by?

29
Q

What are bones joined together by?

30
Q

How are muscles connected to bones?

31
Q

Describe the differences between different types of joint

A

they all move differently; in different directions or not at all

32
Q

give examples of and describe each type of joint

A

Fixed - no movement - eg. skull plates
Cartilaginous - Allows some
flexibility - eg. spine
Synovial - Allows different types of movement and there are different types…

pivot - allows twisting but not bending - eg. neck
ball and socket - movement in almost any direction - eg. shoulder
hinge - folding - eg. knee
condyloid - can be flexed or extended - eg. wrist

33
Q

Explain how muscles that form antagonistic pairs work together when bones move.

A

one contracts and the other one extends to form movement

34
Q

Name the components of blood

A

WBC, RBC, platelets, plasma, haemoglobin, (oxygen)

35
Q

functions of RBC

A

carry oxygen

36
Q

Functions of WBC

A

when fighting a virus they engulf (phagocytes) or destroy (lymphocytes) antigens

37
Q

functons of platelets

A

can clump together and stop bleeding and form a scab

38
Q

functions of plasma

A

cells put waste in the plasma which removes it

39
Q

haemoglobin + oxygen =

A

oxyhaemoglobin

40
Q

Describe the role of the circulatory system: identify and describe the functions of the main parts; compare the properties of arteries, veins and capillaries.

A

say it out loud

41
Q

the heart acts as a ____ ____ to ensure that blood flows in ___ direction(s)

A

double pump, one

42
Q

Describe the role of the breathing system: identify and describe the functions of its parts.

43
Q

Describe the gas exchange process, and compare the compositions of inhaled and exhaled air.

44
Q

Describe how microbes can be transmitted between people and how this can be prevented.

A

contact - not touching a sick person too mmuch
through cuts - cover the wound
inhalation - when sick, cover our mouth when you couhg or sneze

45
Q

Explain how our body’s defences work, including the roles of ciliated epithelial cells, mucus, white blood cells and antibodies.

A

write or say

46
Q

Describe the formation of antibodies and how their presence prevents further occurrences of the same disease.

47
Q

Recall an example of the body killing microbes, and describe the roles of ciliated epithelial cells, mucus, white blood cells and antibodies.

48
Q

meh i give up