Jersey College A&P Final Exam (Q’s & A’s)
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, ly...
Jersey College A&P Final Exam (Q’s & A’s)
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
, Jersey College A&P Final Exam (Q’s & A’s)
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
, Jersey College A&P Final Exam (Q’s & A’s)
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;
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
, Jersey College A&P Final Exam (Q’s & A’s)
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
the thymus Answer-plays a role in early immune system development, t
cells mature, shrinks after puberty, produce thymosin
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