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Flashcards in Humans transport Deck (18):
0

What 4 components make up blood?

Red blood cells
White blood cells
Platelets
Plasma

1

What does blood do?

blood allows substances to be transported from one place to another

2

Where is oxygen carried from and to

From the lungs
To all the cells of the body

3

Where is carbon dioxide carried from and to

From all the cells of the body to the lungs

4

Where is urea carried from and to

From the liver
To the kidneys

5

Where is glucose carried from and to

From the small intestine
To all the cells of the body

6

What do white blood cells do?

White blood cells are part of the body's immune system

7

What do platelets do?

They form clots when a blood vessel is damaged

8

What do red blood cells do?

They are involved in the transport of oxygen and carbon dioxide

9

What is plasma and what does it do?

Plasma is the pale yellow liquid part of blood and if carries water, urea and glucose etc.

10

Why are red blood cells special?

They have no nucleus to contain its maximum mass of heamoglobin to pick up more oxygen.
It has a biconcave shape to increase surface area allowing diffusion to take place quickly

11

Name the three main types of blood vessels

Arteries
Veins
Capillaries

12

Where do arteries carry the blood?

Arteries carry the blood away from the heart

13

Where do veins carry the blood?

Veins return the blood to the heart

14

Describe the artery structure

It has thick, muscular walls to withstand high pressure and a relatively narrow central channel

15

Describe the vein structure

They have thinner walls than arteries and a relatively wide central channel

16

What do capillaries do?

They branch to form networks to all the cells to provide then with oxygen etc.

17

Describe the structure of capillaries

Capillaries are very thin, only one cell thick and have a large surface area to allow diffusion to take place quickly