Just medial to the inferior part of the scapula lies the ________ over which lung sounds can be heard
A) scapular shadow B) posterior cervical triangle
C) dorsal triangle D) triangle of auscultation
Answer: D
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Ejaculation of semen from the penis is caused by
A. sympathetic nerve firing, which initiates smooth muscle contraction in the epididymis, vas deferens, ejaculatory ducts, prostate, and seminal vesicles. B. a somatic reflex that initiates sperm production and motility, and contracts skeletal muscle surrounding the vas deferens. C. voluntary relaxation of the internal urethral sphincter, and sympathetic stimulation of smooth muscle contraction in the walls of the ureters and the urethra. D. a parasympathetic reflex that contracts the seminal vesicles, epididymis, and vas deferens. E. parasympathetic stimulation of smooth muscle in the ureters, urinary bladder, and urethra.
Cardiac output is increased by
A) sympathetic stimulation. B) increased end systolic volume. C) decreased end diastolic volume. D) decreased venous return. E) inhibiting the atrial reflex.
The type of movements that occur between flat surfaces sliding over each other are ______ movements.
A. circular B. slippery D. angular E. gliding
The anterior root and posterior root fuse to form a(n):
A) anterior horn. B) posterior horn. C) posterior (dorsal) root ganglion. D) spinal nerve.