C1 What Is Life Flashcards
Anatomy
The structure of an organism and their parts
The organization of living things
Physiology
Normal function of living organisms and their parts
The way an organism (or their parts) functions
Gross Anatomy
Structures examined without the use of a microscope
- Systemic: Studying the body system by system
-Regional: Studying the body area by area
Surface Anatomy
The study of the external form of the body
-Relation to deeper structures
Microscopic Anatomy
The study of structures with the aid of a microscope
-Cytology
-Histology
Developmental Anatomy
The study of the structural changes that occur in the body throughout the lifespan
-Fertilization to death
-Greatest development changes occur before you are born
Chemical Level
How atoms interact and combine into molecules
Cellular Level
How molecules interact and combine to form organelles of a cell
Tissue Level
Numerous similar cells, and the tissues around them, join to form a tissue type
Organ Level
Two or more tissue types form an organ that performs one of more functions
Organ System Level
A group of organs performing a common function
Organism Level
Anything living thing considered as a whole
6 Characteristics of living organisms
- Organisation - The specific relationship/interaction among part of an organism —> How they perform there function
- Metabolism - The ability to use energy and perform vital functions
- The ability to sense and adjust/react to changes in the environment
- Growth - Increase in size or number of cells
- Development - The changes an organism undergoes through time
- Reproduction - The formation of new cells and new organisms. All living organisms pass on their genes to their offspring
Homeostasis
The maintenance of a relatively constant environment inside the human body
-Maintain a set point
-Normal range = slightly above or below
-Failure of homeostasis can lead to disease or death
Erect