ATRIAL NATRIURETIC FACTOR (ANF

Identify the correct statement (s) regarding the human kidney I. It is responsible for the storage of nutrients such as glycogen II. It concentrates the urine by actively transporting water from the filtrate. III. It produces more dilute urine, when the collecting ducts become less permeable to water. IV. The kidney gets rid of urea from the body by secreting it into the descending arm of the loop of Henle. V. It responds to antidiuretic hormone by increasing urine output VI. It reponds to atrial natiutetic factor by decreasing urinary excretion VII. Kidney functions are controlled by negative feedback circuits involving ADH, RAAS and ANF.

ANF (Arial Natriuretic Factor) is secreted by

Read the given statements regarding human excretory system and select the correct ones. (i). Presence of glucose in urine is known as uremia. (ii). Distal convoluted tubule (DCT) selectively secretes hydrogen ions, ammonia and potassium ions into the filtrate. (iii). Macule densa is formed by cellular modification in the distal convoluted tubule and the afferent arteriole at their contact location. (iv). Atrial natriuretic factor (ANF) can cause vasoconstriction when blood flow is low to the atria of the heart.

Reena was experiencing headache and dizziness for the last few days . When visited a clinic, the doctor informed that her blood pressure is high. Which of the following hormones will be secretad in body to reduce the blood pressure ? I. Aldosterone II. Cortisol III. Atrial Natriuretic factor IV. Erythropoietin

Assertion :- An increase in blood flow to the atria of heart can cause the release of ANF. Reason :- ANF can cause vasodilation and decrease the Blood pressure

Assertion: The kidneys have built in mechanisms for the regulation of lomerular filtration rate (GFR). Reason: ANF mechanism is one such efficient mechanism.

Assertion :- Feedback mechanism for regulartion of kidney involve hypothalamus & JGA. Reason :- ANF mechanism check renin-angiotensin mechanism.

The full form of ANF is

What is the role of ANF ?