Exam 23: Lymphatic System

The size of the spleen is relatively constant in different individuals,regardless of sex or age.

Why is having an understanding of the lymphatic drainage of the breast important in formulating the diagnosis and treatment of breast cancer?

Lymph flows through the thoracic duct and reenters the general circulation at the rate of about _____ liter(s)per day.

Match each structure or organ of the lymphatic system with its corresponding function or description. -duct that carries only about one fourth of the lymph back to the blood

The lymphatic system,like the circulatory system,is a closed circuit.

The lymph pressure gradient is established by:

Axillary node enlargement may be a sign that breast cancer cells have spread to the nodes.

Germinal centers are areas of rapidly dividing lymphocytes within a cortical node.

Baby Ruth was born without a thymus gland.Immediate plans were made to perform a transplant.In the meantime,Baby Ruth was placed in strict isolation.Even her parents were not allowed to touch her.Why was she placed in the isolation unit?

The cisterna chyli:

Which of the following is not true of the thymus gland?

Which of the following is a function of lymph nodes?

Protein substances that have left the bloodstream return by way of lymph fluid.

Damage to main lymphatic ducts may cause death from the loss of serum proteins.

Anastomoses are not characteristic of lymphatic vessels,and therefore a malignant tumor in one breast cannot spread to the other breast.

Almost all of the interstitial fluid filtered out by the capillaries enters the lymphatic system.

The tunica media of lymph vessels is similar to that of veins except the lymph vessels have no smooth muscle.

Lymphatic vessels run parallel to veins and form frequent anastomoses with them.

In advanced old age,the thymus may be largely replaced by:

How are lymphatic capillaries related to the function of the lymphatic system?