Which one of the following is NOT true of the lungs?
A) The narrower portion of each lung is called the apex.
B) The bases rest on the diaphragm.
C) The left lung has two lobes.
D) The right lung has three lobes.
E) Both lungs have two lobes.
E
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Because the plasmalemma is relatively permeable to water, the process of ________ keeps water concentration in the extracellular and intracellular fluids equal.
Fill in the blank(s) with the appropriate word(s).
Vibration due to exhaled air that results in speech is a function of the _______
a. complete voice box b. true vocal cords c. false vocal cords d. glottis e. epiglottis
Which of the following is a depressor of the scapula?
a. Upper trapezius. b. Upper pectoralis major. c. Lower trapezius. d. Serratus anterior.
The basic heartrate established by the SA node is called the
A) pacemaker potential. B) action potential. C) vagal tone. D) sinus rhythm. E) SA potential.