Lab #3 Worsheet

Question 1

II. Give the correct pathway for lymph flow.

Answer 1

1. Lymphatic Capillaries
2. Afferent Lymphatic Vessels
3. Lymph Nodes
4. Efferent Lymphatic Vessels
5. Lymphatic Trunks
6. Collecting Ducts

Question 1

III. List the five classes of antibodies and give their primary function.

Answer 1

1. IgG
   Most abundant
   Produced against bacteria, viruses and toxins
   Only antibody to cross the placenta
2. IgA
   Found in exocrine fluids such as tears and saliva
   Levels decrease during stress
3. IgM
   First antibodies to be secreted after initial antigen exposure
   Produced in blood transfusions
4. IgD Involved in B cell activation
   5. IgE
      Located on eosinophils and basophils
      Involved in allergic reactions by releasing histamine

Question 2

IV. List the four types of immunity and describe each one.

Answer 2

1. Naturally acquired active immunity
   Develops after exposure to antigens in the environment
2. Artificially acquired active immunity
   Develops after administration of an antigen
3. Artificially acquired passive immunity
   Develops After administration of antibodies
4. Naturally acquired passive immunity
   Develops after maternal exposure through placenta or breast milk

Question 3

V. List the four signs of an inflammatory response and what each of the signs means.

Answer 3

1. Rubor—redness
2. Calor—heat
3. Dolor—pain
4. Tumor–swelling

Question 4

VI. Label the lymph node below.

Answer 4

1. Afferent lymphatic vessel
2. Capsule
3. Cortex
4. Medulla
5. Efferent lymphatic vessel
6. Hilus
7. Lymphatic artery and vein