Chapter 20: Lymphatic System Herlihy: The Human Body in Health and Illness, 7th Edition

Where does lymph originally come from?

interstitium

Lymph from the right arm and the right side of the head and thorax drains into the

right lymphatic duct

Thymosin

is a hormone

The spleen

removes worn-out blood cells from circulation.

The right lymphatic duct and the thoracic duct empty into the

subclavian veins

What is the name of the lymph nodes that drain the head and neck region?

cervical

What structures are located near the opening of the nasal cavity in the upper throat and are also called the adenoids?

pharyngeal tonsils

The inguinal lymph nodes

are located in the groin.

What happens if the lymphatic vessels and nodes are removed from the right axillary region?

The right arm will become edematous

If proteins are allowed to accumulate in the interstitial space, they will

"hold water" and cause edema

Lymphatic capillaries

absorb tissue fluid and transport it toward the heart.

What is the term that refers to the removal of the palatine tonsils?

tonsillectomy

Which of the following conditions is most likely to cause a platelet deficiency?

A hyperactive spleen

What structure is concerned with the processing and maturation of T lymphocytes?

thymus gland

Which lymphoid organ is located in the ventral cavity, thoracic cavity, and mediastinum?

thymus gland

The subclavian veins

receive lymph from the large lymphatic ducts.

The spleen, thymus gland, tonsils, and lymph nodes are

lymphoid organs

What is (are) the lymphoid structure(s) that is (are) generally removed during a mastectomy?

axillary lymph nodes

Which of the following is (are) described as partially encapsulated lymph nodes located in the throat area?

tonsils

A lacteal is located within the

intestinal villus

Which of the following is least characteristic of the pharyngeal tonsils?

Most commonly removed by tonsillectomy

Lymph is

formed from tissue fluid

Why does lymph contain protein?

Protein leaks out of the capillaries into the tissue spaces and is absorbed into the lymphatic capillaries

An overly active spleen may prematurely remove platelets from the circulation, thereby predisposing a person to

thrombocytopenia and bleeding

Elephantiasis is

edema formation in response to impaired lymphatic drainage

A person has a severe streptococcal pharyngitis (sore throat). He is most likely to develop

painful cervical lymph nodes

A young woman is diagnosed with breast cancer. She is most apt to have

a sentinel node biopsy before the mastectomy is performed.

Which of the following best describes the lymphatic capillaries?

They have large pores and follow venous pathways

Which of the following is true about lymph? It is

absorbed by lymphatic capillaries from the interstitium.

The thoracic duct

receives lymph from large lymphatic vessels that drain the left side of the body.

What is the similarity between the thoracic duct and the right lymphatic duct? Both

are large lymphatic ducts that collect lymph from smaller lymphatic vessels.

With which of the following are lymph nodes populated?

lymphocytes and macrophages

With which of the following is MALT least associated?

erythropoiesis

Which of the following is least associated with tonsils?

thrombopoiesis

Red pulp and white pulp

compose splenic tissue

This organ engages in erythropoiesis in the fetus, produces lymphocytes in the adult, and stores platelets.

spleen

The lymphatic circulation

Is most closely associated with the venous side of the circulation

Lymph node dissection is most likely to cause

edema