Essentials of Human Anatomy & Physiology (12th Edition)
12th Edition
ISBN: 9780134395326
Author: Elaine N. Marieb, Suzanne M. Keller
Publisher: PEARSON
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Chapter 15, Problem 23SAE
How do the internal and external urethral sphincters differ structurally and functionally?
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What are the functions of the urinary system in the human body, and how do the anatomical structures of the kidneys, ureters, bladder, and urethra contribute to the formation, storage, and elimination of urine?
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The primary purpose of the collecting system is to (a) transport urine from the bladder to the urethra. (b) selectively reabsorb sodium ions from tubular fluid. (c) transport urine from the renal pelvis to the ureters. (d) make final adjustments to the osmotic concentration and volume of urine.
Chapter 15 Solutions
Essentials of Human Anatomy & Physiology (12th Edition)
Ch. 15 - More than one choice may apply. Microscopic...Ch. 15 - Prob. 2MCCh. 15 - Urine passes through the ureters by which...Ch. 15 - Effects of aldosterone include a. increase in...Ch. 15 - 5. Which of the following is dependent on tubular...Ch. 15 - Prob. 6MCCh. 15 - The smallest fluid compartment is the a....Ch. 15 - Prob. 8MCCh. 15 - Prob. 9SAECh. 15 - Prob. 10SAE
Ch. 15 - Prob. 11SAECh. 15 - 12. About 150 L of plasma filters into the renal...Ch. 15 - Prob. 13SAECh. 15 - Prob. 14SAECh. 15 - Besides ridding the body of wastes formed during...Ch. 15 - Prob. 16SAECh. 15 - Prob. 17SAECh. 15 - Prob. 18SAECh. 15 - Prob. 19SAECh. 15 - Prob. 20SAECh. 15 - Prob. 21SAECh. 15 - Why is urinalysis a routine part of any good...Ch. 15 - 23. How do the internal and external urethral...Ch. 15 - Prob. 24SAECh. 15 - 25. What sometimes happens when urine becomes too...Ch. 15 - Define incontinence.Ch. 15 - Contrast the following homeostatic imbalances:...Ch. 15 - Why is cystitis more common in females?Ch. 15 - 29. What type of problem most commonly affects the...Ch. 15 - Prob. 30SAECh. 15 - Prob. 31CTCh. 15 - 32. Mitchell’s parents bring him to the clinic...Ch. 15 - A young woman has come to the clinic with dysuria...Ch. 15 - 34. What happens to the rate of RBC production in...Ch. 15 - Two physiology students are having a disagreement...Ch. 15 - Mr. Jessup, a 55-year-old man, is operated on for...Ch. 15 - 37. Raymond is hypertensive and was recently...
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- How does the formation of urine help maintain the bodys internal environment?arrow_forwardThe main function of the transitional epithelium in the ureter is (a) not the same as that of the transitional epithelium in the bladder, (b) protection against kidney stones, (c) secretion of mucus, (d) resorption, (e) stretching.arrow_forwardWhat are the three tissue layers of the organs of the urinary tract?arrow_forward
- How does the detrusor respond to increased firing of the parasympathetic fibers that innervate it? How does this affect the internal urethral sphincter?arrow_forwardWhat is the purpose of the urinary system? List the structures of the urinary system. Which of the urinary structures are responsible for urine production?arrow_forwardWhat is responsible for the movement of urine from the kidneys to the urinary bladder?arrow_forward
- What are the basic functions of the urinary system?arrow_forwardUrine passes downward through the ureters by which mechanism(s)? (a) ciliary action, (b) peristalsis and gravity, (c) gravity alone, (d) suction exerted on the ureters and renal pelvis as the bladder expands with urine.arrow_forwardWhich structure of the urinary system forms urine, and which structure stores urine?arrow_forward
- Within the urinary system, the storage reflex involves 974 A) relaxation of the detrusor muscle and contraction of the internal urethral sphincter. B) relaxation of both the detrusor muscle and the internal urethral sphincter. C) contraction of both the detrusor muscle and the internal urethral sphincter. D) contraction of the detrusor muscle and relaxation of the internal urethral sphincter.arrow_forwardParasympathetic stimulation of the bladder causes (a) inhibition of the detrusor muscle and relaxation of the external urethral sphincter, (b) contraction of the detrusor muscle and relaxation of the internal urethral sphincter, (c) relaxation of the internal and external urethral sphincters, (d) contraction of the detrusor muscle and contraction of the internal urethral sphincter.arrow_forwardWhich urinary structure is involved in the micturition reflex? Which urinary structure is involved with the physical act of urination? What are the phases of urine production? Where does each phase specifically occur?arrow_forward
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