Within the urogenital system, would-be invaders encounter hostile conditions in the __________ urine and vaginal secretions
Fill in the blank(s) with correct word
acidic
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From what kind of cells are granular cells derived?
a. striated muscle cells b. smooth muscle cells c. red blood cells d. white blood cells e. plasma cells
Which of the following contribute(s) to the flow of lymph through lymphatic vessels?
A. The pumping of the heart B. The milking action of skeletal muscle contraction C. Pressure changes in the thorax that result from breathing D. Both b and c
Which of these molecules is correctly matched with its method of movement through the cell membrane?
A. lipid-soluble molecules — pass through membrane channels B. small, water-soluble molecules (ions) — dissolve in double phospholipid layer C. large, water-soluble molecules — transported by carrier-mediated processes D. glucose and amino acid molecules — pass through membrane channels E. All of these are correctly paired.
The smaller the receptive fields in a region,
a. the lower the density of receptors in the region b. the lower the acuity in the region c. the more likely of feeling two separate stimuli occurring close together on the skin d. all of the above will be true e. only a and b will be true