Kidneys Inc.

medicine and nephrology updates and interesting cases by a practicing nephrologist in USA

Embryology of human kidneys

I intended to post an article on embryology of the kidney. This article just made it easier.

Pronephros draining from the coelom into the pronephric ducts (approximately day 22 of gestation)

Mesonephros draining directly from capillaries into mesonephric (wolffian) ducts: this system is similar to that of aquatic amphibians and fish

Metanephros draining from capillaries into bowman’s capsules and renal tubules (approximatesly by 5th week) and then into metnephric duct that later forms ureters.

While the metanephric ducts travel caudally to join the bladder as ureters, the metanephri rotate and migrate upwards as the torso elongates during development of fetus. this elongates the ureters.

At the end of formation of fully functional kidneys which is by 32- 36 weeks, there are one million nephrons.

http://scienceblogs.com/pharyngula/2011/05/the_basics_of_building_a_kidne.php

Advertisements

Single Post Navigation

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: