Lymphatic System and Antigen-presenting Cells
The Immune System: Anatomy Review
1. Name the two major anatomical parts of the immune system:
• ________________________________________
• ________________________________________
2. Cells of the immune system originate in ___________. These cells are called ______________ when traveling in the blood and are classified according to the shape of their nucleus and colors of their granules when stained.
3–4. List the leukocytes in order of frequency from most to least common. In the second column put their distinct characteristics. Name of Leukocyte
Description
5. Specialized immune cells: Leukocytes are normally found in the blood, while non-leukocytes are found in tissue. Fill in the cells classified under the following headings and note if they are found in blood or tissue.
• Phagocytes: __________________________
• Antigen-presenting cells: __________________________
• Effector cells of adaptive immunity: __________________________
• Other: __________________________
6. Primary lymphoid organs, where B and T cells originate and mature, are the bone marrow and thymus. Fill in the following:
Both B and T cells originate from ________________.
The B cells mature in the ___________________.
The T cells mature in the ___________________.
(Hint: This is how they came to be called B and T cells.)
7. Secondary lymphoid organs, where lymphocytes become activated, include the following structures:
• _____________
• _____________
• _____________
• _____________
• _____________
8. The lymphatic system consists of the following three parts:
• __________________
• __________________
• __________________
9. The lymphatic vessels collect excess interstitial fluid that leaves the capillaries and returns it to the cardiovascular system. How many liters per day are collected? ___ L/day
10. If lymphatic vessels do not function properly, there will be a buildup of fluid in the tissues. This condition is known as
1. Name the two major anatomical parts of the immune system:
• ________________________________________
• ________________________________________
2. Cells of the immune system originate in ___________. These cells are called ______________ when traveling in the blood and are classified according to the shape of their nucleus and colors of their granules when stained.
3–4. List the leukocytes in order of frequency from most to least common. In the second column put their distinct characteristics. Name of Leukocyte
Description
5. Specialized immune cells: Leukocytes are normally found in the blood, while non-leukocytes are found in tissue. Fill in the cells classified under the following headings and note if they are found in blood or tissue.
• Phagocytes: __________________________
• Antigen-presenting cells: __________________________
• Effector cells of adaptive immunity: __________________________
• Other: __________________________
6. Primary lymphoid organs, where B and T cells originate and mature, are the bone marrow and thymus. Fill in the following:
Both B and T cells originate from ________________.
The B cells mature in the ___________________.
The T cells mature in the ___________________.
(Hint: This is how they came to be called B and T cells.)
7. Secondary lymphoid organs, where lymphocytes become activated, include the following structures:
• _____________
• _____________
• _____________
• _____________
• _____________
8. The lymphatic system consists of the following three parts:
• __________________
• __________________
• __________________
9. The lymphatic vessels collect excess interstitial fluid that leaves the capillaries and returns it to the cardiovascular system. How many liters per day are collected? ___ L/day
10. If lymphatic vessels do not function properly, there will be a buildup of fluid in the tissues. This condition is known as