Immune System part 2

• Biologie
• Middelbare school
• havo
• Leerjaar 2

Today's Lesson

1. Review Excretion 

2. Discuss Immune System 

3. Know the difference between natural and artificial immunity

4. Allergies and allergic reactions

5. Quick review

What is the name of part 1?

1. Renal cortex
2. Renal medulla
3. Renal pelvis
4. Ureter

What is the name of part 3?

1. Renal cortex
2. Renal medulla
3. Renal pelvis
4. Ureter

Where does part 6 lead to?

1. Bladder
2. Urethra
3. Outside
4. Ureter

What is the name of part 2?

1. Renal cortex
2. Renal medulla
3. Renal pelvis
4. Ureter

3.5

The immune system

What is not a part of Urine?

1. Salt
2. Water
3. Waste products
4. Blood

Immune system?

The immune system

Protects against foreign bodies/ pathogens

 Pathogens = viruses and bacteria

Infection = when a pathogen enters the body

Pathogen

Contains DNA (inside)

Has antigens (on the outside)

Natural immunity

1. A pathogen enters your body.

2. You get sick.

3. Your body makes antibodies.

4. You get better.

5. The white blood cells "remember" how these antibodies were made. 

6. The next time the pathogen enters, antibodies are made immediately in large amounts.

7. You are immune.

8. Example: Chicken pox

Artificial immunity

1.  Otherwise known as vaccination.

2. You receive a dead or weakened pathogen via an injection. This is known as a vaccine.

3. Specific white blood cells make antibodies.

4. You get a little bit sick.

5. When the pathogen enters again, your bodies make antibodies immediately and in large amounts. 

6. You are immune and will not get sick. 

Allergic reaction

Allergy - hypersensitive to a particular substance

(food, perfume, dust mites, pollen, etc.)

Causes an immune response in your immune system

- redness, skin rash, burning sensation

Anaphylactic response

• Severe allergic reaction
• Leads to swollen mucous membranes, thick lips, red blotches shortness of breath
• Blood vessels can dilate (expand) and blood pressure drops
• dangerous or fatal if not treated
• EpiPen - counteracts the anaphylactic response

Which substance from your blood plays an important part in your immune system?

1. Red blood cells
2. White blood cells
3. Platelets
4. Plasma proteins

A molecule found on the outer surface of cells that the immune system recognises as either part of the body or an outside invader.

1. Aids
2. Antigen
3. Antibodies
4. Disease

The figure is a schematic drawing showing two antigens, P and Q, and an antibody.

Which antigen will the antibody attach to: P or Q?

1. Antigen P
2. Antigen Q

What i learned about the immune system is that....

I still have a question about the immune...

What did we learn?

1. kidneys

2. antigen vs. antibody

3. natural immunity

4. artificial immunity

5. Allergies

Homework

Read 3.6 - Immune system

Do Qs 1 t/m 4 and 8