21) Chronic or excessive enlargement of lymph glands, a sign : 1200341

21) Chronic or excessive enlargement of lymph glands, a sign : 1200341.


21) Chronic or excessive enlargement of lymph glands, a sign called ________, may occur in response to bacterial or viral infections, endocrine disorders, or cancer.

A) lymphadenopathy

B) splenectomy

C) tonsillitis

D) lymphoma

E) appendicitis

22) Lymphoid organs are different from lymphoid tissues in that lymphoid organs

A) contain lymphocytes and lymphoid tissues do not.

B) are found in the digestive tract and lymphoid tissues are found in the thorax.

C) are separated from surrounding tissues by a fibrous connective tissue capsule and lymphoid tissues are not.

D) can increase or decrease in size and lymphoid tissues cannot.

E) are less complex structures that contain small numbers of lymphocytes.

23) Lymph differs from plasma in that

A) lymph contains more protein than plasma.

B) lymph contains white blood cells, whereas plasma does not.

C) plasma contains more protein than lymph.

D) lymph contains electrolytes and plasma does not.

E) There is no difference; lymph and plasma are the same.

24) A bacterial infection in the foot would most likely affect lymph nodes in which of the following regions?

A) axillary

B) cervical

C) mammary

D) inguinal

E) brachial

25) In regards to the circulating lymphocytes, choose the most accurate characteristic of B cells.

A) They help establish and control the sensitivity of the immune response.

B) They stimulate the activities of T cells.

C) They attack foreign cells, normal cells infected with viruses, and cancer cells that appear in normal tissues.

D) They continually monitor peripheral tissues.

E) They differentiate into plasma cells that secrete antibodies.

26) The adult spleen

A) ranges in diameter from 1-25 mm.

B) structurally consists of lobules, each of which is divided into a medullary center and an outer cortex.

C) filters lymph before it reaches the veins.

D) secretes the hormones collectively known as thymosins.

E) contains the largest collection of lymphoid tissue in the body.

27) Adaptive defenses

A) involve immunological surveillance.

B) protect against particular threats.

C) do not distinguish between one threat and another.

D) are not dependent on the activities of lymphocytes.

E) are present at birth.

28) Major events produced by inflammation include

A) redness, swelling, heat, and pain.

B) redness, pus, fever, and rapid heart rate.

C) tears, swelling, pain, and fever.

D) swelling, redness, tissue damage, and altered pH.

E) heat, pain, fever, and activation of the complement system.

29) Which of the following immune cell populations targets foreign compounds or pathogens that have been coated with antibodies?

A) Kupffer cells

B) neutrophils

C) monocytes

D) microglia

E) eosinophils

30) NK cells secrete ________, which kills an abnormal cell by creating large pores in its plasma membrane.

A) histamine

B) pus

C) perforin

D) heparin

E) pyrogen



21) Chronic or excessive enlargement of lymph glands, a sign : 1200341

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