Immersion in water will lead to increased diuresis.
Answer the following statement true (T) or false (F)
True
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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.
The fibrous layer of the eye
A) consists of the sclera and the cornea. B) contains the intrinsic eye muscles. C) regulates the amount of light entering the eye. D) consists of the iris, ciliary body, and choroid. E) consists of the retina.
Increasing the number of recruited motor units in a muscle increases its force or strength of contraction
Indicate whether the statement is true or false
Which of the following statements regarding the lymphoid organs is NOT true?
A. The primary lymphoid organs are the bone marrow and thymus. B. The thymus secretes protein hormones, collectively called thymopoietins. C. Large numbers of macrophages and lymphocytes are found in the lymph nodes and spleen. D. The tonsils contain lymphocytes, macrophages, and dendritic cells that respond to microbes in food. E. Once a lymphocyte reaches a secondary lymphoid organ, it remains there for its lifetime.