Structural Organization and Homestasis

Cyto

Cell

Bi, Di

two

Tri

Three

Quad

Four

My(o)

Muscle

Blast

Sprout

Peri

Around

Ex, Astra, Exo

Out

Intra, Endo

Inside

Osteo

Bone

Epi

Above, Upon

Hyper

More

Hypo

Less, Below

Itis

Inflammation

Anatomy

Structure, study of the parts of the body

Physiology

Function, how organisms perform their functions

Gross Anatomy or Macroscopic Anatomy

Examines large visible structures

Surface Anatomy

Exterior features

Systemic Anatomy

Groups of organs working together, skeletal system

Microscopic Anatomy

Examines cells and molecules

Cytology

Cells and their structure

Histology

Tissues and their structure

Cell physiology

Processes within and between cells

Organ physiology

Functions of specific organs

Systemic physiology

Functions of an organ system

Pathological physiology

Effects of diseases

6 Levels of Structural Organization

Chemical, Cellular, Tissue, Organ, Organ System, Organism

Chemical

Atoms - Molecules

Cellular

Forms organelles, protein filaments

Tissue

Work together to perform a function

Organ

Combination of tissues

Organ System

Combination of interactive organs

Organism

Combination of organ systems resulting in a living subject

Metabolism

The chemical reactions occurring in the cells and tissues of the body

Anabolism

Building up, synthesis of new molecules within the bodies cells or tissues, ENERGY

Catabolism

Tearing down, breaking down molecules, RELEASES ENERGY

Homeostasis

Maintaining a physiologic balance of components and functions

Receptor (Sensor)

Responds to change, sends information to control center

Control center (Integrator)

Brain, Analyzes info

Effector (Muscle or Gland)

Provides a means for response to the stimulus

Negative Feedback

Reduces signal, brings back to homeostasis, Temp

Positive Feedback

Increases stimulus, only occurs in blood clotting and child birth