RBC_memb 3.57.51 PM

RBC_memb 3.57.51 PM - Red cell membrane Dr.SuhairAbbasAhmed...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
    Red cell membrane Dr. Suhair Abbas Ahmed
Background image of page 1

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

View Full DocumentRight Arrow Icon
objectives After studying this lecture you should be able to:   1-List the main functions of the red cell membrane.   2-Outline the composition of the red cell membrane.   3-Differentiate between the integral and peripheral proteins  in the red cell membrane.   4-Describe the structure and composition of the red cell  cytoskeleton.   5-Outline the ABO and Rh systems. 
Background image of page 2
Red cell membrane The primary function of the red cell is the  transport of respiratory gases to and from  the tissues. To achieve this task the red cell should  be capable of traversing the  microvascular system without  mechanical damage, and that the cell  should retain a shape which facilitates  gaseous exchange.
Background image of page 3

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

View Full DocumentRight Arrow Icon
Red cell membrane In order to meet with the demands of function,  the red cell membrane should be extremely  tough yet highly flexible. This strength and flexibility of the red cell  membrane is due to the design of its protein  cytoskeleton and the way the cytoskeleton  interacts with the membrane lipid bilayer.
Background image of page 4
Functions of red cell membrane To separate the contents of the cell from  the plasma. To maintain the characteristic shape of  the red cell. To regulate intracellular  cation conc. To act as the interface between the cell  and its environment via membrane  surface receptors. 
Background image of page 5

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

View Full DocumentRight Arrow Icon
Red cell membrane The red cell membrane consists of:       Proteins~50%       Lipids~40%       Carbohydrates~10%
Background image of page 6
Background image of page 7

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

View Full DocumentRight Arrow Icon
              CARBOHYDRATES They occur only on the external surface  of the red cell. They are composed of glycoproteins and 
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 26

RBC_memb 3.57.51 PM - Red cell membrane Dr.SuhairAbbasAhmed...

This preview shows document pages 1 - 9. Sign up to view the full document.

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