The Lymphatic System and Lymphoid Organs and Tissues Exam Practice Questions and Answers

The Lymphatic System and Lymphoid Organs and Tissues Exam Practice Questions and Answers 1) Small organs associated with lymphatic vessels are termed ________. A) lymph follicles B) lymph nodes C) axillary nodes D) cisterna chyli - Ans:-B) lymph nodes 2) 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 - Ans:-A) pancreas 3) The distal portion of the small intestine contains clumps of lymph follicles called ________. ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/16 A) islets of Langerhans B) Peyer's patches C) rugae D) villi - Ans:-B) Peyer's patches 4) 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 - Ans:-B) skeletal muscle contractions and differences in thoracic pressures due to respiratory movement 5) The thymus is most active during ________. A) fetal development B) childhood C) middle age D) old age - Ans:-B) childhood ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/16 6) 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 - Ans:-C) right lymphatic duct 7) 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. - Ans:-D) The thymus initially increases in size and then decreases in size from adolescence through old age. 8) The lymphatic capillaries are ________. A) more permeable than blood capillaries ©GRACEAMELIA 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/16 B) less permeable than blood capillaries C) as permeable as blood capillaries D) completely impermeable - Ans:-A) more permeable than blood capillaries 9) Antibodies that act against a particular foreign substance are released by ________. A) T lymphocytes B) plasma cells C) lymph nodes D) medullary cords - Ans:-B) plasma cells 10) Lymph leaves a lymph node via _______