Below is a listing of nephron components and associated structures: 1. descending limb of loop of Henle 2. Bowman's capsule 3. collecting tubule 4. ascending limb of loop of Henle 5. distal tubule 6. proximal tubule Indicate the correct flow of filtrate through these structures:

Question

14-04-2020
Biology

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Below is a listing of nephron components and associated structures: 1. descending limb of loop of Henle 2. Bowman's capsule 3. collecting tubule 4. ascending limb of loop of Henle 5. distal tubule 6. proximal tubule Indicate the correct flow of filtrate through these structures:

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podgorica podgorica · Answer 1 · 2020-04-17T10:14:07+02:00

Answer:

2. Bowman's capsule

6. proximal tubule

1. descending limb of loop of Henle

4. ascending limb of loop of Henle

5. distal tubule

3. collecting tubule

Explanation:

There are two main components of a nephron-

a) Renal Tubule

b) Renal Corpuscle

Renal Tubule –

The renal tubule emerges from the glomerulus and consists of three sub parts

a) Proximal Convoluted Tubule (PCT)

b) Henle’s Loop – has descending and an ascending limb

c) Distal Convoluted Tubule (DCT) – last part of nephron

Renal Corpuscle- consists of a glomerulus surrounded by a Bowman’s capsule

So the correct order is as follows

2. Bowman's capsule

6. proximal tubule

1. descending limb of loop of Henle

4. ascending limb of loop of Henle

5. distal tubule

3. collecting tubule

imitateportsmouth imitateportsmouth · Answer 2 · 2020-04-17T10:42:19+02:00

The question is incomplete.

The complete question is:

Below is a listing of nephron components and associated structures:

1. descending limb of loop of Henle

2. Bowman's capsule

3. collecting tubule

4. ascending limb of loop of Henle

5. distal tubule

6. proximal tubule

What is the correct flow of filtrate through these structures?

a. 4, 6, 5, 3, 2, 1

b. 2, 6, 1, 4, 5, 3

c. 2, 5, 6, 3, 1, 4

d. 3, 2, 6, 1, 4, 5

Answer: b. 2, 6, 1, 4, 5, 3

Explanation:

Kidney consist of the microscopic structural and functional unit called "nephron". Nephron is composed of a renal tubule and a renal corpuscle.

The key function of nephron is filteration of blood that results in regulation of water and soluble substances. It reabsorbs the required subsatnces and excretes the rest as urine.

The filteration starts with the bowman's capsule which is tuft of capillaries in renal corpuscle, the filtrate is then continues to the proximal tubule and extends into the medulla at descending limb of loop of Henle which receives the filtrate , then returns to the cortex at the ascending limb of Henle and empty the filtrate in the distal tubule. distal tubule delivers its filtrate to a collecting tubule . The urine is then transfer to the medullary interstitium where further proceses takes place and urine excreted from the body.

Hence, the correct option is b. 2, 6, 1, 4, 5, 3