Chat with AIExam 3: the Remarkable Body
Briefly describe the actions of the body's phagocytes and lymphocytes.
(75) 
VerifiedPhagocytes are white blood cells that can ingest and destroy antigens. When a phagocyte recognizes a foreign particle, the phagocyte forms a pocket in its own outer membrane, engulfing the invader. Then the phagocytes may attack the invader with oxidative chemicals in an "oxidative burst" or may otherwise digest or destroy them. Phagocytes also leave a chemical trail that helps other immune cells to join the defence against infection. Lymphocytes are white blood cells that participate in the immune response. They are known as T-cells and B-cells. Killer T-cells recognize chemical messages from phagocytes and "read" and "remember" the identity of an invader from the messages. They then seek out and destroy all foreign particles with the same identity. B-cells respond rapidly to infection by dividing and releasing invader-fighting proteins-antibodies-into the bloodstream. Antibodies travel to the site of the infection and stick to the surface of the foreign particles, killing or inactivating them. Like T-cells, the B-cells also retain a chemical memory of each invader, and if the encounter recurs, the response is swift.
Which organ makes most of the body's alcohol-processing machinery?
(81) VerifiedD
Match the digestive organs with their appropriate functions.a.manufactures bile to help digest fats
b.releases bicarbonate into the small intestine
c.opens to allow elimination
d.churns, mixes, and grinds food to liquid mass
e.reabsorbs water and minerals
f.stores bile until needed
g.passes food to the stomach
h.makes enzymes to aid in the digestion of carbohydrate, protein, and fat
i.chews and mixes food with saliva
j.stores waste prior to elimination
k.contracts rhythmically to move food content along
-stomach
(104) Verifiedd
What is the primary task of the colon during digestion and absorption of food?
(65) The stomach's main function is the digestion of what nutrient or nonnutrient?
(86) Which term refers to the burning sensation in the chest area caused by backflow of stomach acid into the esophagus?
(70) Match the digestive organs with their appropriate functions.a.manufactures bile to help digest fats
b.releases bicarbonate into the small intestine
c.opens to allow elimination
d.churns, mixes, and grinds food to liquid mass
e.reabsorbs water and minerals
f.stores bile until needed
g.passes food to the stomach
h.makes enzymes to aid in the digestion of carbohydrate, protein, and fat
i.chews and mixes food with saliva
j.stores waste prior to elimination
k.contracts rhythmically to move food content along
-rectum
(76) Differentiate between the mechanical and chemical aspects of digestion.
(63) You have just consumed a meal very high in fat. As a result, hormones cause the release of what substance into the small intestine?
(81) Timing of meals is important because the digestive tract is unable to digest food at certain times.
(75) Which medical condition could be suspected for an individual who reports regularly consuming large amounts of alcohol, has inadequate food intake, and shows signs of poor muscle coordination, paralysis of the eye muscles, and damaged nerves?
(84) The body stores some nutrients in much smaller quantities than other nutrients.
(75) Which term refers to proteins made by the immune system that combine with and inactivate specific antigens?
(87) Explain how the lining of the digestive tract can remain intact despite begin in contact with powerful digestive juices and enzymes.
(65) In cases of severe undernutrition of energy and nutrients, how does the absorptive surface of the small intestine respond?
(96) Why might a person be able to eat when hunger sensation is absent?
(75) Which of the following body components determines the nature of the cell's work?
(86) 
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