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1. the two branches of adaptive immunity are.. a. …. :relating to effector funct

ID: 185996 • Letter: 1

Question

1. the two branches of adaptive immunity are..

a. …. :relating to effector functions that are mediated by soluble defensive factors

b. …… relating to effector functions that are mediated by cells.

2. Immunological memory develops after the initial exposure to an antigen, such as after vaccination. This memory results in a more vigorous response to the same antigen after a subsequent exposure. What two cell types are most responsible for this memory?

A,.

b.

3. you eat fish for dinner one day and you absentmindedly swallow a bone. The bone passes harmlessly through the stomach but perforates the wall of your small intestine and introduces live gram-negative bacteria into the underlying tissues. Two days after you eat the fish dinner, you experience abdominal pain, intestinal upset fever, and loss of appetite. After four days you are felling so terrible that you go to the emergency room. An e-ray reveals an amorphous cavity in the wall of your intestine. You are anesthetized and the cavity is surgically drained of approximately 75ml of bloody pus. What leukocyte is most responsible for pus formation?

4.you are an immunologist working at a veterinary hospital. A one-year-old dog is brought to the hospital suffering from bacterial pneumonia—an infection of the lungs. This is the third time since the dog was born last year that it has gotten sick with the same disease. One of the dog’s parents has also suffered from a similar recurrent disease and requires continuous prophylactic antibiotics. You ordered blood work including an analysis of leukocytes. You find that there is a lower than normal number of a particular white blood cell. What cell deficiency might explain the dog’s symptoms?

5. consider a virus that you might be exposed to when a classmate sneezes. How can your immune system prevent infection of your cells with that virus. Suggest a mechanism.

6.  which one of the six categories of pathogens is considered to be the cause of the greatest amount of human disease?

7.a number of soluble factors are released by sentinel cells after activation. One factor is famous for causing leakage of blood vessels and swelling. What is this factor?

Explanation / Answer

1) Humoaral 2) cell mediated ..

Acc to rule at one time only one que can be answered ..