What two major regulatory systems in the body have the most influence on the immune system?
a. circulatory and digestive
b. circulatory and endocrine systems
c. digestive and endocrine systems
d. nervous and endocrine systems
e. nervous and digestive systems
d
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If two similar molecules can both combine with the same carrier, the presence of one of these molecules decreases the rate of entry of the other
Indicate whether the statement is true or false
Why should a surgeon cut along the tension (cleavage) lines when performing surgery?
What will be an ideal response?
Sickle cell anemia generally results from a single (1) amino acid incorrectly inserted in the 146 amino acid chain that ultimately forms the beta chain of the hemoglobin protein.
a. true b. false
Which of these does not prevent the spontaneous formation of a clot?
A) The dilution of thrombin when blood flows at a normal rate B) The smooth prostacyclin-coated endothelium of blood vessels C) The presence of tissue thromboplastin D) The presence of antithrombin in plasma E) The presence of heparin in plasma