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Bio 254 Exam 1 – Questions With Complete Answers
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Bio 254 Exam 1 – Questions With Complete Answers3 functions of lymphatic system Correct Ans - fluid recovery,
immunity, lipid absorption
Lymphatic pathway Correct Ans - lymphatic capillary
afferent lymphatic vessel
lymph node
efferent lymphatic vessel
lymphatic trunk
collecting duct
subclavian vein
- allow for "one way" circulation in lymphatic vessels Correct Ans -
Semilunar valves
Drains the upper right quadrant of the body Correct Ans - right
lymphatic duct
Drains majority of the body Correct Ans - thoracic duct
What is a chylomicron? Correct Ans - type of lipoprotein formed in
enterocytes to transport lipids away from the GI tract
Which vitamins are toxic if taken in excess Correct Ans - Fat soluble
vitamins
Patient takes too much insulin and is in shock, what should you give
Correct Ans - Glucagon
What mineral is required for blood synthesis Correct Ans - Iron
What is lymph? Correct Ans - excess tissue fluid carried by lymphatic
vessels
What influences the movement of lymph? Correct Ans - pressure from
contracting muscles & respiration
What is MALT? Correct Ans - mucosa-associated lymphoid tissue
, What are the 3 lymphoid organs? Correct Ans - lymph nodes, thymus,
spleen
Where are lymph nodes not found Correct Ans - CNS
What are thymosins? Correct Ans - hormones produced in thymus;
stimulate T cell maturation
largest lymphatic organ Correct Ans - spleen
What is the function of the spleen Correct Ans - filter blood and help
fight infections
What are the 2 tissue types of the spleen? Correct Ans - white pulp and
red pulp
whats in white pulp Correct Ans - white blood cells (b and t cells)
whats in red pulp Correct Ans - RBCs
What is the site of T-cell maturation? Correct Ans - thymus
Where do B lymphocytes mature? Correct Ans - bone marrow
What is innate immunity? Correct Ans - Nonspecific protection against
foreign substances indiscriminantly.
All cells but lymphocytes.
What is adaptive immunity? Correct Ans - Your immune responses to
a specific invader, in which both B and T lymphocytes respond to.
What is considered first line of defense against pathogens Correct Ans -
Mechanical barriers
What are examples of mechanical barriers? Correct Ans - skin, mucous
membranes, cilia
What causes swelling? Correct Ans - increased vascular permeability
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