A&P II Notes April 12

A&P II Notes April 12 - Anatomy Physiology II Notes...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Respiratory System cont.  Carbon dioxide transport – flows away from the metabolizing tissues and is exhaled by the lungs,  transported in three different ways: o ~10% transported dissolved in plasma o ~60% as bicarbonate ion (HCO 3 - ) (CO 2  + H 2 O:  carbonic anhydrase (enzyme)   H 2 CO 3 carbonic acid   HCO 3 -  + H + ) – hydrogen ions are acidic and if all of them remained as such it  would acidify the blood (not good), so hydrogen ions bind to hemoglobin and are temporarily  eliminated – when there’s a higher hydrogen ion concentration there is less affinity for oxygen o ~39% as carbamino-hemoglobin – carbon dioxide is bound to hemoglobin Medulla is the main brain relating to respiration, also areas in the pons, hypothalamus, and cerebral  cortex that also have input into the medulla o
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/18/2008 for the course BI 132 taught by Professor Halpern during the Spring '07 term at BC.

Page1 / 2

A&P II Notes April 12 - Anatomy Physiology II Notes...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online