CH #1 - BIO LECTURE

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33 Cards. Created by Summer ().
What is Anatomy? What is Physiology? The body
 
Term  
Definition

Gross (Macroscopic) Anatomy

-Regional, systematic, surface

Microscopic Anatomy

-Cytology (cells) , histology (tissue)

Developmental Anatomy (Embryology)

What is Anatomy?

STRUCTURE of the body and its parts/how these parts relate

What is Physiology?

FUNCTION of the body and it's parts

Anatomy & Physiology complement each other

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Structural Organization of the body

Chemical Cellular Tissue Organ Organ System Organism

Organ Systems

1.) Integumentary 2.) Skeletal 3.) Muscular 4.) Nervous 5.) Endocrine 6.) Cardiovascular 7.) Lymphatic/Immune 8.) Respiratory 9.) Digestive 10.) Urinary 11.) Reproductive (male and female)

Necessary Life Functions

1.) Maintain boundaries 2.) Movement 3.) Responsiveness 4.) Digestion 5.) Metabolism 6.) Excretion 7.) Reproduction 8.) Growth

The stuff of Life

1.) Nutrients (vitamins, minerals, carbohydrates, proteins, fats) 2.) Oxygen 3.) Water 4.) Normal body temperature 5.) Atmospheric pressure

How does the body keep living?

HOMEOSTASIS

HOMEOSTASIS

*The body's attempt to maintain internal equilibrium in a changing external environment

HOMEOSTASIS

"steady-state" where the needs of the cells are met

No in-balances= you feel good

HOMEOSTASIS

Model of HOMEOSTASIS

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HOMEOSTATIC CONTROL

1.) Red blood cell, white blood cell, platelet counts 2.) Blood PH (acidity) 3.) Water balance 4.) Salt balance 5.) Protein levels in the blood 6.) Blood glucose levels 7.) Most of your body's activities are under control of the ENDOCRINE or NERVOUS system

BLOOD GLUCOSE LEVELS

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Beneficial Negative Feedback

BIRTH OF BABY

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Beneficial Positive Feedback

Harmful Positive Feedback

1.) Hemorrhage --> 2.) Decreased venous return --> 3.) Decreased cardiac output --> 4.) Less blood to heart muscle, low BP --> 5.) Increased vasoconstriction --> 6.) More fluid loss at capillaries --> 7.) Back to #2 CAN END IN DEATH

HOMEOSTASIS (FEEDBACK)

*Body seeks to maintain balance

*Involuntary

*Can be positive (increased a body function) or negative (stops or slows a body function)

*Usually beneficial, but can be harmful