During exercise, which of the following contract for active exhalation?
A) rectus abdominis and internal intercostal muscles
B) diaphragm and internal intercostal muscles
C) rectus abdominis and diaphragm muscles
D) diaphragm and external intercostal muscles
E) pectoralis major and serratus anterior muscles
A
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First messengers may bind to a membrane receptor that is an ion channel, which promotes a change in membrane polarity.
Answer the following statement true (T) or false (F)
The amount of Na+ excreted in the urine equals the amount of Na+ ____ minus the amount of Na+ ____
a. filtered; reabsorbed b. ingested; filtered c. ingested; metabolically consumed d. ingested; placed in storage e. secreted; reabsorbed
Which of the following is not a function of the kidneys?
a. they contribute significantly to long-term regulation of arterial blood pressure by maintaining the proper plasma volume. b. they act directly on the interstitial fluid, the fluid that bathes the cells, to maintain constancy in its composition. c. they excrete the metabolic waste products. d. they assist in maintaining the proper acid-base balance of the body. e. they secrete several hormones.
The ________ arch of the foot runs perpendicular to the longitudinal arches.
Fill in the blank(s) with the appropriate word(s).