Anatomy and Physiology Ch.1 (exam 1)

Flashcards to help study for the anatomy and physiology exam 1 at quincy college.

32 cards   |   Total Attempts: 182
  

Cards In This Set

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What are the six levels of organization?
1.chemical 2.cellular(smallest unit of living) 3.tissue 4.organ 5.organ system(digestive) 6.organism(human)
Atom
Smallest unit of matter
Molecule
Two or more atoms joined together ex.deoxyribunucleic acid (DNA)
Tissue Level
Groups of cells and materials surrounding them.
4 types of tissues
Epithelial, connective,muscular,nervous
Organ level
Tissues join together into structures that are composed of two or more different tissues. they have specific functions and recognizable shapes.
System Level
Consists of related organs with a common function. ex.digestive system, endocrine system.
What is metabolism?
Sum all of the chemical processes that occur in the body. catabolism- break down of complex chemical substances. anabolism-building up of complex chemical substances.
Responsiveness
Bodys ability to detect and respond to changes. -decrease in body temperature.-responding to sound-nerve and muscle cells contracting
Movement
Motion of the whole body
Growth
Increase is the bodys size
Differentiation
Development of a cell from an unspecialized to a specialized state.-cells have specialized structures and functions that different from precursor.-stem cells-gives rise to cells that undergo differentiation
Reproduction
Formation of new cells(growth,repair or replacement)production of new individual cells.
Homeostasis
A condition of equilibrium in the body's internal environment.-narrow range is compatible with maintaining life.ex. humans pH 7.35-.45
How does homeostasis affect body fluids?
Maintaining the volume and composition of the body fluids. very important.