Which of the following is true for excretion in humans?
1. Glucose and amino acids are reabsorbed in PCT by simple diffusion.
2. DCT is permeable to water.
3. On average, 25-30 gm of urea is excreted out per day.
4. Maximum reabsorption occurs in the loop of Henle.
Assertion : Urinary bladder and ureters are lined by transitional epithelium.
Reason : Ureters carry the urine to urinary bladder where it is stored temporarily.
Assertion : During micturition, urine is prevented from flowing back into the ureters.
Reason : Urethral sphincters relax during micturition.
For the ejection of urine the voluntary signal is given by
(1) ANS
(2) CNS
(3) PNS
(4) Afferent arterioles
From where does the signal for Micturition arise?
(1) By stretching of the urinary bladder
(2) By relaxing of urniary bladder
(3) By reduction in the size of urinary bladder
(4) By contraction of urinary bladder