Before S of interphase, the genetic material in a cell exists as individual structures called ____: after G2 of interphase, the replicated genetic material consists of two structures called ____
Chromosomes...chromatids
Histones... nucleosomes
Chromatids .... Chromosomes
Heterochromatin ... euchromatin
Chromosomes...chromatids
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Below the level of the foramen magnum, the meningeal layer of the dura mater covers the spinal cord.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. Simple cuboidal epithelia are usually associated with secretion and absorption. 2. Depending on the functional state of the bladder, transitional epithelium may resemble stratified squamous or stratified cuboidal epithelium. 3. Stratified cuboidal epithelium is moderately rare in the body and found only in the pharynx, larynx, and anorectal junction. 4. Endothelium covers and lines internal cavities such as the pleural and peritoneal cavities. 5. Merocrine glands produce their secretions by accumulating their secretions internally and then rupturing of the cell.
Urea is
A) actively transported into the filtrate by the cells of the collecting duct. B) completely eliminated in the urine. C) passively reabsorbed in the proximal tubule. D) actively secreted in the distal tubule. E) actively reabsorbed in the proximal tubule.
Postganglionic parasympathetic fibers to the urinary bladder originate in the:
a. lumbar chain ganglia b. intermural ganglia c. lateral grey horn in S2 d. inferior mesenteric plexus