By what week of prenatal development will the placenta be established?
A) week 4 B) week 8 C) week 12 D) week 16
Answer: C
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Air moves by pressure gradient, we don't suck air in --> it moves in as we expand the cavity
a. true b. false
The pubic symphysis is classified as a
A. cartilaginous joint and a synarthrosis. B. synovial joint and a diarthrosis. C. cartilaginous joint and an amphiarthrosis. D. fibrous joint and an amphiarthrosis. E. fibrous joint and a synarthrosis.
Which one of the following is NOT true?
A. Blood is more viscous than water. B. The average amount of blood in an adult body is about 5 pints. C. The normal range for the blood pH is 7.35 to 7.45. D. Red blood cells normally live approximately 120 days. E. The normal red blood cell count is approximately 5 million/cubic millimeter of blood.
The ability of the olfactory system to adapt to a particular odor may involve
A. sensitivity of the olfactory cortex. B. an increase in the sensitivity at the receptor sites. C. neurons from the medial olfactory area stimulating mitral cells and tufted cells. D. the intermediate olfactory area sending inhibiting impulses to the olfactory bulb. E. molecules that do not bind to receptors anymore.