A&P 2 Morales Quiz 5 Lymphatic

Which of the following is not a function of the lymphatic system?

A) draining excess interstitial fluid

B) carrying out immune responses

C) transporting dietary fats

D) transporting respiratory gases

D) transporting respiratory gases

Lymph capillaries are absent in all but which of the following?

A) bones and teeth

B) bone marrow

C) CNS

D) digestive organs

D) digestive organs

Which lymphatic structure drains lymph from the right upper limb and the right side of the head and thorax?

A) lumbar trunk

B) thoracic duct

C) right lymphatic duct

D) cisterna chyli

C) right lymphatic duct

Select the correct statement about lymph transport.

A) Under normal conditions, lymph vessels are very high-pressure conduits.

B) Lymph transport is faster than that occurring in veins.

C) Lymph transport is only necessary when illness causes tissue swelling.

D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.

D) Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.

Functions of the spleen include all of those below except ________.

A) removal of old or defective blood cells from the blood

B) forming crypts that trap bacteria

C) storage of blood platelets

D) storage of iron

B) forming crypts that trap bacteria

Which of the following would not be classified as a lymphatic structure?

A) pancreas

B) spleen

C) tonsils

D) Peyer's patches of the intestine

A) pancreas

What is a bubo?

A) a wall in a lymph node

B) a lobe of the spleen

C) an infected Peyer's patch

D) an infected lymph node

D) an infected lymph node

Small organs associated with lymphatic vessels are termed ________.

A) lymph follicles

B) lymph nodes

C) axillary nodes

D) cisterna chyli

B) lymph nodes

The thymus is most active during ________.

A) fetal development

B) childhood

C) middle age

D) old age

B) childhood

Digestive tract-associated lymphatic tissue includes all of the following except ________.

A) Peyer's patches

B) palatine tonsils

C) lingual tonsils

D) islets of Langerhans

D) islets of Langerhans

Select the correct statement about lymphocytes.

A) The two main types are T cells and macrophages.

B) B cells produce plasma cells, which secrete antibodies into the blood.

C) T cells are the precursors of B cells.

D) T cells are the only form of lymphocyte found in lymphoid tissue.

B) B cells produce plasma cells, which secrete antibodies into the blood.

When the lymphatic structures are blocked due to tumors, the result is ________.

A) shrinkage of tissues distal to the blockage due to inadequate delivery of lymph

B) severe localized edema distal to the blockage

C) increased pressure in the lymphatics proximal to the blockage

D) abnormally high lymph drainage from the distal region

B) severe localized edema distal to the blockage

Peyer's patches are found in the ________.

A) duodenum of the small intestine

B) ileum of the small intestine

C) large intestine

D) jejunum of the small intestine

B) ileum of the small intestine

Which of the following is not a method that maintains lymph flow?

A) skeletal muscle contraction

B) breathing

C) valves in lymph vessel walls

D) smooth muscle contraction

D) smooth muscle contraction

The distal portion of the small intestine contains clumps of lymph follicles called ________.

A) islets of Langerhans

B) Peyer's patches

C) rugae

D) villi

B) Peyer's patches

The tonsils located at the base of the tongue are the ________.

A) lingual tonsils

B) palatine tonsils

C) pharyngeal tonsils

D) Peyer's tonsils

A) lingual tonsils

Which of the following are functions of lymphoid tissue?

A) house and provide a proliferation site for lymphocytes

B) house and provide a proliferation site for neutrophils

C) furnish an ideal surveillance vantage point for lymphocytes and macrophages

D) A and C

D) A and C

Select the correct statement about lymphoid tissue.

A) Once a lymphocyte enters the lymphoid tissue, it resides there permanently.

B) Lymphoid macrophages secrete antibodies into the blood.

C) Lymphoid tissue is predominantly reticular connective tissue.

D) T lymphocytes act by ingesting foreign substances.

C) Lymphoid tissue is predominantly reticular connective tissue.

Which of the following is not a normal component of lymph?

A) water

B) plasma proteins

C) red blood cells

D) ions

C) red blood cells

Large clusters of lymph nodes occur in all of the following locations except the ________.

A) inguinal region

B) cervical region

C) axillary region

D) lower extremities

D) lower extremities

Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) ________.

A) tonsil

B) thymus

C) Peyer's patch

D) appendix

A) tonsil

The ________ pulp of the spleen forms cuffs around the central arteries.

A) red

B) white

C) green

D) clear

B) white

A sentinel node is ________.

A) a lymph node found in the intestinal lamina propria

B) the first node at the junction of all the lumbar trunks

C) a small node in the spleen

D) the first node to receive lymph from an area suspected to be cancerous

D) the first node to receive lymph from an area suspected to be cancerous

Tonsils have blind-ended structures called ________.

-crypts

Which of the following is not a mucosa-associated lymphatic tissue?

A) tonsil

B) thymus

C) Peyer's patch

D) appendix

B) thymus

The appendix, tonsils, and Peyer's patches are examples of ________.

MALT

Which cells become immunocompetent due to thymic hormones?

A) basophils

B) lymphocytes

C) macrophages

D) monocytes

B) lymphocytes

What effect does age have on the size of the thymus?

A) The size of the thymus increases continuously from birth to death.

B) The size of the thymus decreases continuously from birth to death.

C) The thymus is not affected by age.

D) The thymus initially increases in size and then decreases in size from adolescence through old age.

D) The thymus initially increases in size and then decreases in size from adolescence through old age.

The thymus is the only lymphoid organ that does not:

A) have lymphocytes

B) produce hormones

C) have a cortex and medulla

D) directly fight antigens

D) directly fight antigens

Which of the following is not a function of lymph nodes?

A) act as lymph filters and activate the immune system

B) produce lymphoid cells and granular WBCs

C) produce lymph fluid and cerebro-spinal fluid

D) serve as antigen surveillance areas

C) produce lymph fluid and cerebro-spinal fluid

The thoracic duct of the lymphatic system empties into the ________.

left subclavian vein

Highly specialized lymph capillaries called ________ are present in the villi of the intestinal mucosa.

lacteals

Lymphatic ________ are formed from the union of the largest collecting vessels.

trunks

Lymph leaves a lymph node via ________.

A) efferent lymphatic vessels

B) afferent lymphatic vessels

C) the cortical sinus

D) the subscapular sinus

A) efferent lymphatic vessels

The lymphatic capillaries are ________.

A) more permeable than blood capillaries

B) less permeable than blood capillaries

C) as permeable as blood capillaries

D) completely impermeable

A) more permeable than blood capillaries

Antibodies that act against a particular foreign substance are released by ________.

A) T lymphocytes

B) plasma cells

C) lymph nodes

D) medullary cords

B) plasma cells

Both lymph and venous blood flow are heavily dependent on ________.

A) the pumping action of the heart

B) skeletal muscle contractions and differences in thoracic pressures due to respiratory movement

C) contraction of the vessels themselves

D) two-way valves

B) skeletal muscle contractions and differences in thoracic pressures due to respiratory movement

Hassall's corpuscles are always found in the lighter-colored ________ regions of the thymus.

medullary

The ________ are the simplest lymphoid organs and are found at the entrance to the pharynx.

tonsils