Exam 31: Lymphatic System

The semilunar valves of the lymph vessels are formed from folds of the tunica intima.

Both lymph and interstitial fluid contain a higher percentage of proteins than does plasma.

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

Which tonsils are known as adenoids when they become swollen?

The two most important functions of the lymphatic system are immunity and the maintenance of fluid balance in the internal environment.

The lymph nodes located in the neck along the sternocleidomastoid muscle are called the:

Elderly people have only about 10% function in their thymus gland.

The thymus gland is a primary organ of the lymphatic system with an epithelial framework structure similar to that of the spleen.

More than 85% of the lymph from the breast enters lymph nodes at the lateral edge of the sternum.

Even though the lymphatic system has no single muscular pump like the heart, lymph flows at about the same speed as blood.

Lymph nodes are made of lymphatic tissue while lymph glands are actually made of epithelial glandular tissue.

Like most other structures in the body, lymph vessels have the capacity for repair or regeneration when damaged.

Lymphatics have thicker walls than do veins.

Compare and contrast the structures of veins and lymphatics.

The part of the lymphatic system that secretes a hormone is the:

The spleen is located in the _____ region.

The breast-the mammary gland and the surrounding tissues-is drained by six sets of lymphatic vessels.

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

Lymphatic capillaries that operate in the villi of the small intestine are called lacteals.

The breast-the mammary gland and surrounding tissue-is drained by the: