Tom del giorno

2 Questions 5 Answers 0 Followers

Questions related from Tom del giorno

Can anyone conjecture about the purpose of the smooth muscle that envelopes the trachea and bronchi/-oles?

Since it's mostly under parasympathetic control that can cause bronchoconstriction, was Nature's purpose to be on guard for toxins (smoke, gases, water) that might enter the lungs? I understand...

09 January 2015 5,985 0 View

Does anyone have a good source for the explanation of differences in iris colors?

Obviously melanocytes have a part to play as does the attraction of sunlight and its Vitamin D formation....

23 May 2012 3,484 9 View