Micturition

Q.

What will happen if stretch receptors of urinary bladder wall are totally removed?

1. There will be no micturition
2. Urine will not collect in bladder
3. Urine will continue to collect normally in bladder
4. Micturition will continue

Q. What will happen if stretch receptors of urinary bladder wall are totally removed?

1. There will be no micturition
2. Urine will not collect in bladder
3. Micturition will continue
4. Urine will continue to collect normally in bladder

Q.

What system removes waste products from the circulatory system?

Q.

Explain micturition.

Q.

What are the electron carriers?

Q.

List two factors on which reabsorption of water from urine depends.

Q.

Which of the following is not an organ of the nervous system?

1. Brain

2. Spinal cord

3. Nephron

4. Nerves

Q. Arrange the following process of micturition in the correct order.
1. CNS initiates contraction of bladder muscles and relaxation of urethral sphincter
2. Urinary bladder fills with urine
3. Stretch receptors send signals to CNS
4. Urine reaches the bladder

1. I, III, IV, II
2. II, IV, I, III
3. III, II, I, IV
4. IV, II, III, I

Q.

The outline of principal events of urination is given in random manner.

(1) Stretch receptors on the wall of urinary bladder send signals to the CNS.

(2) The bladder fills with urine.

(3) Micturition

(4) CNS passes on motor messages to initiate the contraction of smooth muscles of bladder and simultaneous

relaxation of sphincter. The correct sequence of the event is:

1. 2, 1, 4, 3

2. 3, 2, 1, 4

3. 1, 2, 3, 4

4. 4, 3, 2, 1

Q.

The pH of human urine is approximately
(a) 6.5 (b) 7 (c) 6 (d) 7.5

Q.

What are filtration slits seen in the Bowmans capsule?

Q. Urine formed by the nephrons is ultimately carried to the urinary bladder where it is stored till a voluntary signal is given by the

1. CNS
2. PNS
3. ANS
4. Endocrine system

Q.

Pavlov’s pouch refers to ________.

1. A Bag Containing Food

2. An Artificial Stomach.

3. An Opened Stomach Of A Dog.

4. A Bag Containing Digestive Enzymes.

Q. A fall in glomerular filtration rate activates

1. adrenal medulla to release adrenaline
2. juxtaglomerular cells to release renin
3. posterior pituitary to release vasopressin
4. adrenal cortex to release aldosterone

Q. Glycosuria and ketonuria in urine helps in clinical diagnosis of:

1. Vasopressin deficiency mediated disorder
2. Disease caused by ADH deficiency
3. Disease caused by insulin deficiency
4. Glucagon deficiency mediated disorder

Q.

________are the main excretory organs in the body.

Q. In micturition,

1. urethra relaxes
2. ureter contracts
3. ureter relaxes
4. urethra contracts

Q. The normal range of urinary output per day in human adults is

1. 50 ml
2. 10 ml
3. 400-2000 ml
4. 200 ml

Q.

Why do we urinate more in winter?

1. Kidney becomes more active

2. Increase of ADH secretion

3. Sweating is much reduce

4. Impairment of water absorption in nephron

Q.

The main excretory organ in human beings.

Q.

Fill in the gaps:
A healthy adult human excretes (on an average) ___ gm of urea/day.

Q. The part of the nephron most involved in reabsorption of sodium is

1. Bowman's capsule
2. Descending limb of Henle's loop
3. Distal convoluted tube
4. Proximal convoluted tubule

Q.

What hormone regulates potassium levels?

Q.

urinary volume is increased in all of the following except?

1) diabetes insipidus

2) diabetes malletus

3) sympathetic stimulations

4) infusion of mannitol

can i have answer for this with detailed explanation for each option?

Q. Assertion: The colour of human urine is yellow.
Reason: The major nitrogenous waste in humans is urea.

1. Both the assertion and reason are true and the reason is the correct explanation for the assertion
2. Both the assertion and reason are true but the reason is not the correct explanation for the assertion
3. Assertion is true but the reason is false
4. Reason is true but the assertion is false

Q.

Urine enters the bladder through which structure?

1. the ureter

2. the collecting duct

3. the kidney

4. the urethra

Q.

Which of the following leads to the secretion of aldosterone from the adrenal cortex?

1. Chymotrypsin

2. Renin

3. Trypsin

4. None of these

Q.

What are the main events of micturition?

Q.

What happens when you have too much aldosterone?

Q. Filtration occurs in

1. glomerulus
2. Bowman's capsule
3. Malpighian body
4. ureter