Flashcards in First lecture Deck (28):
Two branches of science?
Anatomy and Physiology
The study of structure and the relationships among structures. Lock and Key
Physiology deals with?
The functions of the body parts: that is, how they work. How the key makes the tumblers unlock.
Physiology is _________. Anatomy is _________.
What are the levels of organization?
1) Chemical Level
2) Cellular Level
3) Tissue Level
4) Organ Level
5) Organismic Level
What is the Chemical Level
The level of organization with the smallest components. Includes all atoms and molecules in the body.
Describe the Cellular level
Molecules combine to form the Cellular Level. Cells are the basic structural and functional unit of an organism.
What are the structural and functional components of cells
Tissue level: how is tissue made
Tissues are groups of cell that usually arise from a common ancestor and work together to preform a particular function.
What are the basic types of tissues in the body?
Epithelial, Connective, Muscle, Nervous
What is the function of Epithelial tissue
Cover body surfaces, Lines hollow organs, body cavities and ducts.
Connective tissue does what
Protects and supports the body and its organs. Binds organs together, stores energy reserves as fat and provides immunity.
What are muscle tissue responsible for
Movement and generation of force
Nervous tissue functions include
Initiates and transcripts action potential that help coordinate body activities
Organ level is made up of
Different kinds of tissues that combine to make different organs that are through out the body
Structures that are composed of two or more different types if tissue, have specific functions and usually have recognizable shapes.
What level is the larges level
Describe the Organismic level
All the parts of the body functioning with one another comprise the total organism - one living individual/ animal.
What are the important life processes
What is Metabolism
The sum of all the chemical processes that occur in the body.
Phases of Metabolism
What is catabolism
Involves breaking down large, complex molecules into smaller, simpler ones.
The use of energy from catabolism to build the structural and functional components of the body
What is responsiveness
The ability to detect and respond to changes in the external or environment. Different cells detect different sorts of changes and respond in characteristic ways.
Motion of the whole body, individual organs, single cell or even organelles inside cells
increase in size that results from an increase in the number or size of cells.
What is the change cells undergo to develop form unspecialized to a specialized state