22) The descending limb of the nephron loop . A) is not permeable to water B) is

Question

22) The descending limb of the nephron loop . A) is not permeable to water B) is freely permeable to sodium and urea C) pulls water by osmosis into the lumen of the tubule D) contains fluid that becomes more concentrated as it moves down into the medulla 23) All of the following hormones are released from the hypothalamus to control the anterior pituitary gland except: A) growth hormone releasing hormone (GHRH) B) Thyroid-stimulating hormone (TSH) C) prolactin-releasing hormone (PRH) D) gonadotropin releasing hormone (GnRH) 24) Which of the choices below is not a function of the urinary system? A) filters metabolic wastes and some toxins and drugs from our blood B) produces hormones like renin and erythropoietin C) maintains appropriate water and solute concentrations in our blood D) eliminates solid, undigested wastes and excretes carbon dioxide, water, salts, and heat

Explanation / Answer

22) D

Descending loop is freely permeable to water and thus loose water which makes the fluid, the future urine inside the tubule more concentrated.

23) prolactin releasing hormone. Hypothalamus releases prolactin inhibiting hormone which is dopamine and as the name suggests inhibits release of Prolactin.

24) D

Solid undigested waste is excreted out of the small intestines as feces. Carbon dioxide and heat is excreted as flatulence.

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.