The portion of the renal tubule through which filtrate initially flows is known as the:
A) distal tubule. B) nephron loop (loop of Henle).
C) collecting duct. D) proximal tubule.
Answer: D
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Which of the following contract(s) when one is blowing out birthday candles?
A. Diaphragm B. Erector spinae C. Internal intercostals D. External intercostals E. Serratus anterior
A person has an infection of the middle ear structure that equalizes external and internal pressure, which causes the eardrum to have difficulty vibrating with incoming sound. Which structure should care address?
A) Eustachian tubes B) Ossicles C) Semicircular canals D) Tympanic membrane
Answer the following statements true (T) or false (F)
1. The single most important blood buffer system is the bicarbonate buffer system. 2. One of the most powerful and plentiful sources of buffers is the protein buffer system. 3. As ventilation increases and more carbon dioxide is removed from the blood, the hydrogen ion concentration of the blood decreases. 4. Regulation of the acid-base system is accomplished mainly through respiratory control, and the kidneys also play a small role. 5. Severe damage to the respiratory system rarely will result in acid-base imbalances.
In response to falling blood glucose levels, which pancreatic islet cell releases glucagon?
What will be an ideal response?