1)
If you are searching for the muscles of the perineum, whichstatement about these muscles will help you CORRECTLY identifythem?
| A. | They include the deep transverse perineal and external urethralsphincter. |
| B. | They overlie (are superficial to) the erectiletissues.
|
| C. | They are within the anal triangle. |
| D. | They are innervated by the S3-5 spinal nerves. |
| E. | They include the levator ani and coccygeous. |
2)
When the blood becomes acidic (acidosis) and bicarbonate ionshave been depleted, new bicarbonate ions must be generated in theplasma. Which of the following is NOT a means for replenishingbicarbonate ions?
| A. | All of the answers listed are correct |
| B. | Buffered hydrogen ions are excreted in urine |
| C. | Dihydrogen phosphate (H2PO4-) is excretedin urine |
| D. | Ammonium ions are excreted in urine |
| E. | Bicarbonate ions are reclaimed by tubular reabsorption insteadof excreted in urine |
3)
QUESTION 28
Pepsinogen is inactive until it comes into contact withsecretions from which cell type?
| A. | None of the answers listed are correct |
| B. | Mucous cells |
| C. | Enteroendocrine cells |
| D. | Chief cells |
| E. | Surface epithelial cells |
