Hole's Essentials Of Human Anatomy & Physiology Chapter 1

Front 1

Atoms

Back 1

Smallest particles of an element that have the property of an element.

Front 2

Molecules

Back 2

A particle composed of two or more joined atoms.

Front 3

Macromolecules

Back 3

Large molecules, such as proteins or nucleic acid.

Front 4

Cell

Back 4

The structural and functional unit of life.

Front 5

Organelles

Back 5

A structure in a cell that has a specialized function.

Front 6

Tissue

Back 6

Groups of similar cells that perform a specialized function.

Front 7

Organs

Back 7

A structure consisting of a group of tissues with a specialized function.

Front 8

Organ Systems

Back 8

A group of organs coordinated to carry on a specialized function.

Front 9

Organism

Back 9

An individual living thing.

Front 10

Anatomy

Back 10

Branch of science dealing with the form and structure of body parts.

Front 11

Physiology

Back 11

The study of body functions.

Front 12

Metabolism

Back 12

All of the chemical reactions in cells that breaks down or build up substances.

Front 13

Internal Environment

Back 13

The fluid surrounding body cells.

Front 14

Homeostasis

Back 14

A state of balance in which the body's internal environment remains in normal range.

Front 15

Homeostatic Mechanisms

Back 15

Self regulating control stations that the body uses to control homeostasis.

Front 16

Receptors

Back 16

Specialized cells that provide information about the environment. Also, cell surface structures that bind particular molecules, called ligands, thereby transmitting a signal inside the cell.

Front 17

Set Point

Back 17

A component of a homeostatic mechanism that establishes the range that is optimal for a particular measurement.

Front 18

Effectors

Back 18

Muscles or glands that effect changes in the body.

Front 19

Negative Feedback

Back 19

A mechanism activated by an imbalance that corrects the imbalance.