Blood, Lymph, and Lymph Nodes Practice Test

The practice test in the sixth unit, Blood, Lymph, and Lymph Nodes, in the course Animal Anatomy and Physiology 1 at Penn Foster College.

What lymphatic organ contains white pulp and red pulp?

Spleen

What's the best description of serum?

a- Serum is lymph after it has been filtered.

b- Serum is lymph with the cells and cell fragments removed.

c- Serum is blood with the cells and cell fragments removed.

d- Serum is plasma with the clotting proteins removed.

d- Serum is plasma with the clotting proteins removed.

Which animal has a bursa of Fabricius?

Parakeet

What types of cells and cell fragments are the cellular components of blood?

Red blood cells, white blood cells, and platelets

Which statement describes a difference between tonsils and lymph nodes?

Tonsils don't have a capsule, while lymph nodes do.

What cell type is phagocytic, circulating in large numbers in the body for a short time before moving to the tissues, and must be replaced several times a day?

Neutrophils

Where are blood cells produced?

bone marrow

What's the most common function of the Peyer's patches?

Activating B cells

Which of the following is a secondary lymph organ?

Spleen

What cell type can be fragmented to have its cytoplasm bud from the cell to form platelets?

Megakaryocytes

In dogs and humans, what type of cell is a biconcave disk, with depressions on either side of the cell?

Erythrocytes

What do anticoagulants, such as heparin or sodium citrate, do?

Stop the blood clotting process.

In which process is hemoglobin released into the bloodstream?

Intravascular hemolysis

How does the body maintain a proper pH value of blood?

Blood has pH buffers, including bicarbonate and phosphate.

Inside a lymph node, afferent lymphatic vessels branch and form a network of spaces called

sinuses.

What happens when an immature erythrocyte grows?

a- A nucleus begins to develop.

b- It starts losing hemoglobin.

c- It starts producing hemoglobin.

d- It creates plasma.

e- It loses the nucleus.

c- It starts producing hemoglobin.

e- It loses the nucleus.

What's the fluid lymph composed of?

- Proteins

- Certain white blood cells

- Water

Neutrophils

Involved in inflammatory response, immunity, and phagocytosis

Eosinophils

Involved in inflammatory response, immunity, and phagocytosis

Basophils

Contains histamine and heparin

What are the purposes of the spleen?

a- It filters blood and removes foreign particles from it using phagocytic cells.

b- Using macrophage cells, it removes dying blood cells as they're filtered.

c- It takes cells sent from the bone marrow and develops T cells.

d- If the bone marrow is damaged, it can produce new blood cells through extramedullary hematopoiesis.

e- It stimulates cell-mediated immunity.

f- It acts as a lymph node and stimulates an immune response and a proliferation of white blood cells if needed.

a- It filters blood and removes foreign particles from it using phagocytic cells.

b- Using macrophage cells, it removes dying blood cells as they're filtered.

d- If the bone marrow is damaged, it can produce new blood cells through extramedullary hematopoiesis.

f- It acts as a lymph node and stimulates an immune response and a proliferation of white blood cells if needed.

Capsule

Covers the outside of the lymph node.

Afferent lymphatic vessel

Carries lymph to the lymph node.

Efferent lymphatic vessel

Carries lymph away from the lymph node.

Sinuses

A network of open spaces

Cortex

The outer layer of the lymph node

Medulla

The middle layer of the lymph node