3 human blood

8/7/2019 3 Human blood

1/22

The Human Blood


2/22

Blood Constituent

55 %

Blood

Plasma Blood cells Blood fragments

consists

Red bloodcells

White bloodcells

platelets

45 %


3/22

Functions of the blood

Blood performs two major functions:1.Transport through the body of

oxygen and carbon dioxide

food molecules (glucose, lipids,amino acids)

ions (e.g., Na+, Ca2+ , HCO3)

wastes (e.g. : urea)

hormones Heat ( maintain the body

temperature at 37oC)


4/22

Functions of the blood

Blood performs two major functions:

2. Defense of the body against infectionsand other foreign materials. All the White

blood cells participate in these defenses.


5/22

Plasma

Liquid part of the blood

A pale yellowish liquid

90 % of it is water. The rest aredissolved subs. which include

nutrients, Proteins & mineral salts


6/22

Plasma

Main function of plasma are :

to transport nutrients to tissues

to remove waste products from tissues

to distribute hormones, enzymes , antibodiesetc

to distribute heat energy to all parts of the

body


7/22

Red blood cells

Has a biconcave disc-shape

without nucleus Contain haemoglobin (a redpigment)

produced in the bone marrow

Lifespan :- 4 months

Function :- to transport oxygen from the lungs to all partsof the body ( in the form of oxyhaemoglobin)


8/22


9/22

Platelets

cell fragments produced by large cells in thebone marrow (sum-sum tulang).

No definite shape, without a nucleus

Lifespan :- a few hrs to nine days

Function : to clot blood in a wound to prevent the lossof an excessive amount of blood by releasing aclotting factors


10/22

Characteristic Red bloodcells

White bloodcells

Platelets

Quantity

(1 cm3 blood)

5 000 000 000 8 000 000 250 000 000

Shape

Nucleus

Function

Q1. Complete the table below


11/22

Q2. Complete the chart below

Human blood

__________ _________ _________ ________

Liquid (55%) Solids (45%)

Yellowishpale


12/22

Blood GroupBlood Group

ABO system classifies blood into 4 main groups1. A

2. B

3. AB

4. O

During a blood transfusion , the donors bloodmust be compatible (serasi)with the recipientsblood


13/22

O A B AB

O

A

B

AB

Re

ci pients

b lood

Donors blood

Complete the table below with the mark ( )

compatible ( X ) incompatible

Q2


14/22

Group Can donate to Can receive from

A

B

AB

O

Complete the table below with the correct bloodgroups

Q3


15/22

1. The transfer of blood from a donor to a

recipient is called ___________________________.

2. People with group O are called____________________.

3. People with group AB are called___________________.

4. What would happen when group AB blood

is transfused into a group B person?

5. Why is a person with blood group AB calleda universal recipient?

Q4


16/22

The importance of blood donations

One could save the lives of othersBlood may be needed for treatment of

accident cases

cancer victims

surgery

childbirth

other emergency cases

A greatloss of blood

occurs

There isno substitution

(pengganti)for blood


17/22

Storage & handling of donated blood

1. Is tested for ABO group

2. Must be tested to ensure that it is freefrom disease like HIV , Hepatitis B & C , STDsuch as syphilis

3.The date of expiration should be written onthe label

4.Can be stored at 5oC for 10 days inrefrigerator (Blood bank)

5. the blood may be separated into severalcomponents.


18/22

Glossary

1. Blood transfusion pemindahan darah

2. Agglutinate bergumpal3. Clot - membeku

4. Irregular / no definite tidak tetap

5. Biconcave - dwicembung

6. Fragments - serpihan

7. Bone marrow sum-sum tulang

8. Blood donation pendermaan darah

9. Donor penderma

10. Recipient Penerima


19/22

Characteristic Red blood cells White bloodcells

Platletes

Quantity( 1 cm3 blood )

5 000 000 000 8 000 000 250 000 000

Shape Biconcave

disc-shaped

irregular Irregular

Nucleus No Yes No

Function Transports

oxygen

Protect the

body againstdiseases &fightinfections

Helps in

blood clotting

Complete the table below


20/22

O A B AB

O X X X

A X X

B X X

AB

Recip

ientsblo

od

Donors blood

Complete the table below with the mark ( )

compatible (X) incompatible

Q2


21/22

Group Can donate to Can receive from

A A , AB O , A

B B , AB O , B

AB AB A , B , AB , O

O A , B , AB , O O

Complete the table below with the correct bloodgroups

Q3

Q4


22/22

1. The transfer of blood from a donor to arecipient is called blood transfusion.

2. People with group O are called universaldonor.

3. People with group AB are called universalrecipient.

4. What would happen when group AB blood istransfused into a group B person ?

Agglutination may occurs

5. Why is a person with blood group AB called auniversal recipient ?

Q4

3 human blood

Documents