Biology for Nursing

BIOLOGY FOR NURSING DGN 106/2
BODY CONTROL MECHANISM
BY MAS NOR SALONI IBRAHIM mnsaloni@kck.usm.my

OBJECTIVES
1. 2. 3. 4. 5. 6. 7. settle homeostasis Describe the term ingrained purlieu Explain the construct of homeostasis Describe the principle of a feedback system Describe factors conduct in homeostasis Describe the negative and positive feedback. Explain how homeostatic imbalances cause disorder

Introduction
?Homeostasis is essential to assert the carcass activities ?Infection, injuries, medical or surgical procedure results in disturbance the homeostasis in the body ?Nurses play the important role to restore the clients homeostasis

Homeostasis
Homeostasis-, staying the same . The tendency of the body to maintain the stability of the internal environs.
(Cree, L. & Rischmiller, S., 1991)

The process and activities help maintain homeostasis referred to homeostasis mechanism. It is dynamic and active.

The maintenance of a constant environment in the body is called Homeostasis

The concept of homeostasis
consanguinity between internal and external environment How our bodies strive to maintain the constancy of internal environment Normal range The power which body can tolerate in their cell activities Eg 1. form temperature 36.8?C-37.5?C 2. pH of gastric juice: 0.9-1.2 3.



Blood insistency: 110/60-140/80 4. pH blood : 7.38-7.42

Six grassroots factors
Water pH Electrolyte Temperature Glucose Gases

Cont..
Set point A character reference point around which the body tries to keep the internal environment stable Eg; Body temperature 37.4?C
; Blood pH : 7.4

What is the internal environment ??

cell
?Smallest units of life ?Cells acquire nutrient for its metabolism & eliminate the take products from the environment in which the cell lives

Internal environment
? Extracellular quiet or the fluid outside the cell , is in a constant state of motion and supplied by lungs, GIT, skin and kidney ? Cell...If you extremity to get a full essay, order it on our website: Ordercustompaper.com



If you want to get a full essay, wisit our page: write my paper