Draw and label a spirogram showing respiratory activity in a resting person. Draw and label a spirogram in this same person during exercise.
What will be an ideal response?
The resting graph should resemble Figure 17.7. During exercise, the only things that change are the size of the tidal
volume curve, which will become larger as it enters into the inspiratory and expiratory reserve capacities, and
these reserve capacities will have the same extreme values but will be smaller.
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Atrial natriuretic peptide is a hormone that is made in the atria of the heart. The influence of this hormone is to ________.
A) enhance atrial contractions B) activate the renin-angiotensin mechanism C) prevent pH changes caused by organic acid D) reduce blood pressure and blood volume by inhibiting sodium and water retention
________ provide information about the external environment
A) Proprioceptors B) Interoceptors C) Exteroceptors D) Somatic sensory receptors E) Interneurons
Eversion and plantar flexion is accomplished by muscles in the ______ compartment
A. posterior B. lateral C. anterior
A hormone that can lower blood levels of calcium ion is
A) parathyroid hormone. B) oxytocin. C) thyroxine. D) calcitonin. E) glucagon.