ANSC 53500 or BMS 52800
Avian Physiology


April 4, 2001

Avian Physiology
ANSC 535 or BMS 528
Exam # 3
 

I. Multiple choice. Circle the one best answer (5 points per question for a tptal of 55 points).

  1. The cells of the medulla and cortex are intermingled in which one of the following avian tissues:

    1. bursa of Fabricius
    2. thymus
    3. adrenal gland
    4. kidney
    5. spleen

  2. Immune cells that synthesize and release cytokines are called

    1. macrophages
    2. cytotoxic T-cells
    3. helper T-cells
    4. plasma cells
    5. Langerhans cells

  3. Which one of the following is not an antigen presenting cell:

    1. macrophage
    2. host cell infected with an intracellular antigen
    3. B-cell
    4. T- cell
    5. none of the above (all of the cells listed in "a through d" are antigen presenting cells

  4. Which one of the following is not a cytokine:

    1. interleukins
    2. macrophage inhibition factor
    3. interferon
    4. granulocyte colony-stimulating factor
    5. corticosterone

  5. The major means of heat dissipation in birds is through

    1. evaporation
    2. conduction
    3. convection
    4. radiation
    5. all of the above, because each play an equal role

  6. Attraction of leukocytes to an inflamed area by cytokines is known as

    1. homeostatis
    2. phagocytosis
    3. chemotaxis
    4. endocytosis
    5. vasodilation

  7. That variable portion of the immunoglobulin receptor found on the B-cell membrane that recognizes the antigen is called the

    1. major histocompatability complex (MHC)
    2. idiotype
    3. epitope
    4. Fab fragment
    5. Fc fragment

  8. Autoimmune disease in birds is caused by a deficiency of

    1. Suppressor cells (Ts )
    2. Cytokines
    3. B-cells
    4. Interferon
    5. Cytotoxic or killer cells (Tc )

  9. 9. Which hormone(s) is (are) most critically involved in the acute phase or the alarm phase of General Adaptation Syndrome (GAS)?

    1. the thyroid hormones
    2. cortisol
    3. corticosterone
    4. adrenocorticotropin hormone (ACTH)
    5. epinephrine & norepinephrine

  10. Which one of the following is NOT a physiological response to chronic stress?

    1. increased fat deposition
    2. greater inflammatory response
    3. increased muscle depletion
    4. impaired reproductive function
    5. increased glycogenolysis

  11. Gular flutter

    1. is sensible heat loss
    2. involves counter current heat exchange in the limbs
    3. is the physical transfer of heat energy through a conductor from an object of higher temperature to an object of lower temperature
    4. is a state of hibernation
    5. is none of the above

 

II. Short answers:

  1. Explain why a bird vaccinated with Marek's vaccine is not protected against another disease such as Infectious Bronchitis (12 points).

  2. Identify or classify each of the immunoglobulins (9 points). Identify as a mammalian or an avian immunoglobulin (3 points). Circle all J chains that are present in any of the immunoglobulins (3 points).

    1. Class of immunoglobulin: ____________________
    2. Avian or Mammalian (circle one)
    3. Circle any J chains on the immunoglobulin

     

     

    1. Class of immunoglobulin: ____________________
    2. Avian or Mammalian (circle one)
    3. Circle any J chains on the immunoglobulin

     

     

    1. Class of immunoglobulin: ____________________
    2. Avian or Mammalian (circle one)
    3. Circle any J chains on the immunoglobulin

     

     

  3. Below are two venules.

    1. Distinguish between the venule that has achieved homeostasis and the injured venule. (2 points)

    2. What is happening to the injured venule? (5 points)

    3. In the injured venule, how is the action that you described in 3b mediated? (2 points)

  4. Explain the acute physiological changes that are occurring between these two alpha roosters as they re-establish a new social hierarchy (12 points).

  5. How do penguins in Antarctica keep warm during the coldest days of winter? Be sure to include behavioral responses as well as the specific circulatory mechanism used to keep the legs and feet warm. (12 points)

Return to ANSC 53500 / BMS 52800 Home Page
Return to Exam Archive

If you have trouble accessing this page because of a disability, please email anscweb@purdue.edu.