Exam 23: Lymphatic System

Lymph enters a node via:

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

Lymph nodes may range from 1 mm to more than 20 mm in diameter.

The right lymphatic duct originates as the cisterna chyli.

Name and describe the two main lymphatic ducts of the body.What area of the body is drained by each? What is the cisterna chyli?

Lymph nodes contain reticuloendothelial cells that produce certain red blood cells.

Which of the following is not part of the lymphatic system?

The cisterna chyli is in the thoracic cavity just inferior to the left subclavian vein.

The tonsils located near the posterior opening of the nasal cavity are called the _____ tonsils.

The hilus is a small depression on a lymph node from which the efferent lymph vessel exists.

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

Compare and contrast the structures of veins and lymphatics.

Lymph contains platelets,which allow clots to form in lymphatic vessels.

Most of the protein in lymph comes from the small intestine and the liver.

Activities that result in the flow of lymph are breathing movements and skeletal muscle contractions.

Lymph circulation is maintained by all of the following except:

Which would you predict would occur if a disease blocked the flow of lymph?

Relative to the rest of the body,the thymus is largest at _____ years of age.

Lymphedema,a swelling of the tissues of the extremities,may be treated by diuretics,bed rest,and elevation of the involved extremities.

Even though some lymph nodes occur as single nodes,most occur in clusters.