List, compare, and contrast the brain's centers for monitoring and controlling respiration.
What will be an ideal response?
Respiratory neurons in the medulla control inspiration and expiration. Neurons in the pons modulate ventilation. The rhythmic pattern of breathing arises from a network of spontaneously discharging neurons. Ventilation is subject to modulation by various chemical factors and by higher brain centers.
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Which of the following hormones is produced by the cells marked in the thyroid follicle shown in the histology picture?
a) calcitonin b) vasopressin c) triiodothyronine (T3 ) d) antidiuretic hormone (ADH) e) calcitriol
true or false? DNA replication can begin at any site along the DNA molecule.
a. true b. false
Polyunsaturated vegetable oils can be changed from liquids to solids by
A. decreasing the number of double covalent bonds in their fatty acids. B. adding more unsaturated fatty acids to the molecules. C. removing the glycerol portion of the molecules. D. removing hydrogens from the molecules.
Which law states that the total atmospheric pressure is a sum of the contributions of the individual gases?
A) Henry's B) Charles's C) Dalton's D) Boyle's