A/an ____________ is an instrument used to measure the air taken in and out of the lungs
Fill in the blank(s) with correct word
spirometer
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Select the correct statement about the function of myocardial cells
A) The refractory period in skeletal muscle is much longer than that in cardiac muscle. B) Cardiac muscle cells are innervated by sympathetic, parasympathetic, and somatic nerve fibers so that the nervous system can increase heart rate. C) The entire heart contracts as a unit or it does not contract at all. D) The influx of potassium ions from extracellular sources is the initiating event in cardiac muscle contraction.
Of the five accessory glands of the male, this one produces the bulk of the seminal fluid
A) seminal glands B) bulbo-urethral glands C) prostate
Blood is correctly classified as a(n)
A. intracellular fluid. B. organ system. C. tissue. D. organ.
In hearing, which structure is vibrated last?
A. The tympanic membrane B. The stapes C. The basilar membrane D. The perilymph inside the scalae