1)
When antidiuretic hormone levels are low, ________________.
| A. | a small volume of concentrated urine is excreted |
| B. | most of the water reaching the collecting ducts is notreabsorbed |
| C. | nearly all of the filtered water is reabsorbed |
| D. | sodium solute concentrations will be low |
| E. | aquaporins are inserted into the collecting duct cellmembranes |
2)
Select the correct order of structures a mature sperm willtravel through during ejaculation.
1. Spongy urethra 2. Ductus deferens 3. Ejaculatory duct 4.Prostatic urethra
| A. | 2,3,4,1 |
| B. | 3,1,4,2 |
| C. | 3,2,4,1 |
| D. | 1,2,3,4 |
| E. | 2,3,1,4 |
3)
During swallowing:
| A. | the soft palate elevates during the buccal phase |
| B. | a bolus of food is formed during the pharyngeal-esophagealphase |
| C. | the upper esophageal sphincter relaxes in thepharyngeal-esophageal phase |
| D. | the epiglottis closes over the larynx during the buccalphase |
| E. | the buccal phase ends when food enters the esophagus |
