Human prenatal development takes ________ weeks.
A. 32
B. 38
C. 44
D. 28
Answer: B
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The superior end of the right ventricle near the pulmonary valve is called (the)
A) pulmonary trunk. B) ligamentum arteriosum. C) conus arteriosus. D) auricle. E) All of the answers are correct.
Which of the following is not a potential cause of hypertonicity in the body?
a. water deprivation b. heavy sweating c. excess vasopressin secretion d. diabetes insipidus e. severe diarrhea
Autonomic nervous system fibers are involved in all of the following except ________.
A. adjusting heart rate and force B. regulating gastrointestinal motility C. changing the diameter of the pupil D. maintaining tonicity of the muscles of the neck E. altering salivary mucus secretion
The dermis
A. does not contain connective tissue. B. is divided into three distinct layers. C. functions as padding and insulation. D. contains no blood vessels. E. is responsible for most of the skin's structural strength.