Human excretory system

The vast majority of nephrons in human kidneys are nephrons. O juxtaglomerular O juxtamedullary cortical

7. Figure 7 shows anatomy of the nephron which is important in urine formation process in our body. V W CORTEX KORTEKS MEDULLA MEDULA Y- Figure 7 Rajah 7 i. What is the feature of W that contributes to its high efficiency in reabsorption? ii. How does structure Y establish osmotic gradient in renal medulla? iii. Urea is the main waste secreted from nephron but 50% of filtered urea leaks from Z. What happens if urea does not leak from Z? iv. Instant noodle and kimchi are the main sources of food that caused hypertension in Korea. The high salt-intake diet promotes the secretion of hormone by heart and adrenal cortex. How the body overcome this situation to maintain a normal blood pressure? .....

Anatomy and physiology

For this SECTION (#9) Decide how the following conditions would affect the physiology of the Uinary System ADH causes the osmolarity of urine to O Increase O Decrease O Stay the same As filtrate travels from the capsular space to the loop of Henle, its glucose content will O Increase Decrease Stay the same

please help me, I have an exam tomorrow, I do not know if my answer is correct, could you please give me the answer to this so I can study with it.

3- Ureter epithelium O Simple cuboidal Simple squamous O Transitional 4- vessels inter the glamorous O Renal artery O afferent vessels O Efferent vessels

Which of the following is NOT true about the kidneys? The afferent arteriole brings blood into the glomerular capillary OThe efferent arteriole carries blood out of the glomerulus O The peritubular capillaries run along the outside of the tubules O The glomerular capillary contains fenestrations All of the above are true

Mamma's, coith Some expections are the only veretebrates with medullany nephinon. All other=w] veretebroates ony have a contical nephron, Lohat dose this Mean for the osmolanity. of the renal filtrete for those Vertebretes and Lohat problem mignt this present? How do you think they solve this problem?

As the volume of urine within the bladder exceeds 200 mL, the smooth muscle tension generated by the internal urethral sphincter wil Increase Decrease O Stay the same As blood travels from the interlobular artery to the interlobular vein, its creatinine content will O Increase O Decrease O Stay the same As sympathetic stimulation of the kidneys decreases, the renal reabsorption of sodium will

In a lizard a water molecule in the ureter would next pass into the ______. proximal convoluted tubule glomerulus ascending limb of the nephron loop collecting duct cloaca

Match correct function with regions of the nephron. Region of Nephron Function V Filtration of blood to make filtrate. Mainly selective tubular reabsorption of glucose, amino acids, Na then CI, H,0 follows by v osmosis. Reabsorption of bicarbonate. Also tubular secretion of NH, and H; tubular secretion of drugs (e.g. penicillin). v To create and maintain the concentration gradient across the medulla. v Impermeable to NaCl, permeable to H,0. Water leaves filtrate (in response to concentration of surrounding interstitial fluid) as it descends making the filtrate more concentrated. v Impermeable to H,0, Na is pumped out of the tubule, (CI follows) so filtrate becomes less concentrated as it ascends. H2O reabsorption depending on ADH. Tubular secretion of NH", K and H depending on need. Reabsorption or secretion of bicarbonate depending on need. Loop of Henle (descending limb) V Reabsorption of H2O depending on levels of ADH. Loop of Henle (descending limb) Loop of Henle (as a unit) Loop…

Compared to those of birds and lizards, the kidneys of mammals ______. can produce urine with a higher osmolarity   cannot concentrate the urine as much   "have about the same ability to concentrate the urine, but are more efficient in producing uric acid"