Lecture 1 - Intro

Question 1

Phgy definition

Answer 1

Study of NORMAL functional activities in the HEALTHY living organism

Question 2

Branches of physiology (levels of organizations)

Answer 2

Molecular, Cellular, Organ, Systems, Organismal

Question 3

Scheme of what cell obtains to what cell eliminates

Answer 3

Obtains nutrients and O2, performs reactions, creates energy, energy used for other activities, other activities create wastes and CO2, cell eliminates wastes and CO2

Question 4

Claude Bernard, milieu intérieur : 2 principles

Answer 4

1. Environment around individual cells is different from external environment
2. INTERNAL ENVIRONMENT remains relatively CONSTANT under conditions of HEALTH

Question 5

Homeostasis quick definition

Answer 5

state of dynamic constancy

Question 6

Fundamental principle of homeostasis

Answer 6

At all levels of organization, functional ACTIVITIES are directed at maintaining OPTIMAL and relatively CONSTANT INTERNAL conditions.

Question 7

Steps to homeostasis

Answer 7

1. Detect change 2. Compensatory adjustment 3. Readjust status quo

Question 8

3 word cycle of homeostasis

Answer 8

Homeostasis necessary for cells, which make up organs which maintain homeostasis

Question 9

Consequence of failure to maintain homeostasis

Answer 9

Disruption of normal function

Question 10

Some Factors that must be controlled (7)

Answer 10

Con. of nutrient molecules, Con. of O2 and CO2. Con, of waste products, Con. of electrolytes. pH. Temp. Volume and pressure