Chapter 5- Lymphatics And Immunity

Question 0

What is active immunity?

Answer 0

Exposure to antigen that triggers animals own immune response.

Question 1

What is passive immunity?

Answer 1

When the animal receives antibodies from mother or another animal.

Question 2

What is a lymph?

Answer 2

Carries excess fluid to vessels near the heart where fluid is put back into the bloodstream.

Question 3

What does a lymph consist of?

Answer 3

Blood cells-mostly lymphocytes
Nutrients
Hormones

Question 4

What are lymph nodes?

Answer 4

Small kidney bean shape. Located along lymph vessels.

Question 5

What is the cortex?

Answer 5

Location of resident lymphocytes

Question 6

What is the medula?

Answer 6

Contains tissue macrophages embedded in a coarse fibrous mesh

Question 7

What does the spleen look like and where is it found?

Answer 7

Tongue shaped organ found on left side of abdomen.

Question 8

What is the spleens function?

Answer 8

Stores rbc and gets rid of dead rbc.

Question 9

What is the thymus?

Answer 9

Processes thymocytes and T-cells

Question 10

Where are tonsils found?

Answer 10

All entrances of body

Question 11

What are 3 basic types of immune system diseases?

Answer 11

• immunodeficiency
• hypersensitivity (allergies)
• autoimmune

Question 12

What is primary immunodeficiency?

Answer 12

• congenital or inherited
• b&t lymphocytes don’t develop
• natural immunity is lacking

Question 13

What is secondary immunodeficiency?

Answer 13

Acquired from something else:

• leukemia
• drug induced
• radiation
• aging
• viral injury to immune cells-HIV

Question 14

What is hypersensitivity?

Answer 14

Abnormal immune response, undesirable reactions produced.

Question 15

What are the 4 types of hypersensitivity?

Answer 15

Type 1-immediate/anaphylactic
Type 2-cytotoxic
Type 3- immune complex
Type 4- cell mediated/delayed

Question 16

Type 1

Answer 16

Response time: 15-30 min.
Symptoms: rash, itching, redness, pain, swelling.
Anaphylaxis

Question 17

What is anaphylaxis?

Answer 17

Acute and extreme reaction to allergens that result in severe respiratory and circulatory symptoms.
Treatment: IV fluids, epinephrine

Question 18

Type 2

Answer 18

Ige or igm antibody combines with surface of foreign antigens resulting in lysis or phagocytosis of antigen.
Minutes to hours.
Treatment: antiflammitories and steroids

Question 19

Type 3

Answer 19

Occurs when antigen and antibodies form complexes that deposits in various blood vessels. 3-8 hours. Ain’t-inflammatory

Question 20

Type 4

Answer 20

A delayed response to antigen involving the activation of and damage by T cells. 48 to 72 hours. Carticosteroids and other immunosuppressives.

Question 21

What is autoimmune?

Answer 21

Your own body attacks itself.