Which of the following organs occupies the pericardial cavity?
A) thyroid gland
B) trachea
C) heart
D) esophagus
E) lungs
C) heart
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If an individual was lacking a key amino acid and so couldn't make and release substance P, what would happen?
A. There would be a surge in activity in neurons that synthesize opiate neurotransmitters. B. There would be increasing sensation of pain generated by the brain, with or without any damage to structures in the periphery. C. They would experience a lack of sensation in some pain pathways. D. There would be an increase in activity in neurons that detect painful stimuli in internal organs. E. Synaptic activity in afferent neurons associated with pain receptors can be inhibited by axon-axon synapses with neurons from descending pathways.
A base is an electrolyte that releases ions that combine with hydrogen ions
Indicate whether the statement is true or false
________ cells constrict the afferent arterioles and secrete renin.
Fill in the blank(s) with the appropriate word(s).
The antibody active in agglutination or clumping of antigens is ________.
A. IgM B. IgG C. IgD D. IgA