A&P Final Exam 370 Questions and
Answers Latest Update Fully Solved
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what is the lymphatic system? - ANSWER ✔✔- system of tissues and vessels
scattered throughout the body and services almost all regions
what are the parts of the lymphatic system? - ANSWER ✔✔- tonsils, thymus,
spleen, peyer patch, small intestine, appendix, lymph nodes and vessels
functions of the lymphatic system - ANSWER ✔✔- fluid balance, protection, and
absorption of fats
lymphatic circulation is - ANSWER ✔✔- one-way system that begins in the
tissues and ends when the lymph joins the blood
lymphatic capillaries - ANSWER ✔✔- walls (endothelium) flattened epithelial
cells, more permeable, cells overlap slightly, forming one-way valves, lacteals
absorb fat, arise blindly (closed at one end)
lymphatic vessels - ANSWER ✔✔- include superficial and deep sets, right
lymphatic duct and thoracic duct
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right lymphatic duct - ANSWER ✔✔- short vessel receives only lymph that comes
from the body's superior right quadrant and empties into right subclavian vein near
heart
thoracic duct - ANSWER ✔✔- receives lymph from all parts of the body except
those superior to the diaphragm on the right side; drains into thee left subclavian
vein
cisterna chyli - ANSWER ✔✔- first part of the thoracic duct enlarged to form
cistern or a temp storage pouch
movement of lymph toward heart is caused by: - ANSWER ✔✔- valves in
lymphatic vessels
contraction of lymphatic vessels
skeletal muscle contraction
breathing
roughly how many lymph nodes are in the body? - ANSWER ✔✔- about 600
lymphoid tissue - ANSWER ✔✔- distributed throughout the body and makes up
specialized organs
lymph nodes - ANSWER ✔✔- small masses of lymphatic tissue that filter the
lymph
lymph - ANSWER ✔✔- fluid that circulates in the lymphatic system, clear fluid;
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hilum - ANSWER ✔✔- indented area that is the exit point for efferent lymphatic
vessels carrying lymph out of the node
cervical nodes - ANSWER ✔✔- located in the neck in deep and superficial groups,
drain parts of head and neck
axillary nodes - ANSWER ✔✔- located in armpits
tracheobronchial nodes - ANSWER ✔✔- near the trachea and around the larger
bronchial tubes
mesenteric nodes - ANSWER ✔✔- found between the two layers of peritoneum
that form the mesentry, 100-150 nodes
Inguinal nodes - ANSWER ✔✔- located in groin region, receive lymph drainage
from lower extremities and from external reproductive organs
buboes - ANSWER ✔✔- enlarged Inguinal nodes
the spleen - ANSWER ✔✔- cleanses blood through filtration and phagocytosis,
destroys old blood cells, produces red blood cells before birth, serves as a reservoir
for blood
splenectomy - ANSWER ✔✔- surgical removal of the the spleen
lacteals - ANSWER ✔✔- specialized lymphatic capillaries in the lining of the
small intestine that absorb fats
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the thymus - ANSWER ✔✔- plays a role in early immune system development, t
cells mature, shrinks after puberty, produce thymosin
appendix - ANSWER ✔✔- fingerlike tube of lymphatic tissue that figures into the
development of immunity
Mucosal-associated lymphoid tissue (MALT) - ANSWER ✔✔- important barrier
against infection; found in portions of digestive, respiratory, and urogenital
mucosal linings; helps to destroy contaminants by means of phagocytosis and
production of antibodies
gut-associated lymphoid tissue (GALT) - ANSWER ✔✔- largest aggregations of
MALT found in the digestive tract
tonsils - ANSWER ✔✔- protect against inhaled or ingested contaminants; trap
pathogens;surgery to treat if become infected or swollen and reoccurs which makes
swallowing and breathing difficult
palatine tonsils - ANSWER ✔✔- oval bodies located at each side of the soft palate;
generally what one refers to as "tonsils"
pharyngeal tonsil - ANSWER ✔✔- commonly called adenoid; located behind the
nose on the posterior wall of pharynx
lingual tonsils - ANSWER ✔✔- little mounds of lymphoid tissue at the posterior of
the tongue