Jersey College A&P Final Exam Questions With Verified Answers
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Jersey College A&P Final Exam Questions
With Verified Answers
What is the lymphatic system? - answersystem of tissues and vessels scattered throughout
the body and services almost all regions
what are the parts of the lymphatic system? - answertonsils, thymus, spleen, peyer patch,
small intest...
Jersey College A&P Final Exam Questions
With Verified Answers
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
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;
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
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
lymphadenopathy - answer✔disease of the lymph nodes
lymphedema - answer✔swelling that obstructs lymph flow
four phases of respiration - answer✔pulmonary ventilation, external gas exchange, gas
transport in the blood, and internal gas exchange
pulmonary ventilation - answer✔exchange of air between the atmosphere and the air sacs
(alveoli) of the lungs
external gas exchange - answer✔occurs in the lungs as oxygen diffuses from the air sacs into
the blood and carbon dioxide diffuses out of blood to be eliminated
gas transport in the blood - answer✔circulating blood carries gases between the lungs and the
tissues, supply oxygen to the cells and bring back carbon dioxide
internal gas exchange - answer✔occurs in tissues as oxygen diffuses from the blood to the cells
Oxygen does what for our cells? - answer✔helps break down nutrients
respiration - answer✔process by which oxygen is obtained from the environment and delivered
to the cells
everything in the lower respiratory tract can be what - answer✔life or death
most common chronic respiratory disease of childhood - answer✔asthma
structures of the respiratory system - answer✔nasal cavities, pharynx, larynx, trachea, bronchi,
lungs, pleura
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