Anatomy - Term 1

Gross Anatomy

the examination of relatively large structures and features visible with the unaided eye

Extrinsic Regulation

results from the activities of the nervous or endocrine system, two organ systems that control/adjust the activities of many other systems simultaneously

Hormones

chemical messengers released by the endocrine system affecting tissues and organs throughout the body

Systemic Anatomy

study of the structure of the body

Cytology

analysis of internal structure of individual cells

Receptor

a sensor sensitive to environmental changes; stimulas

Histology

examination of tissues

Tissues

groups of specialized cells and cell products that work together to perform specific functions

Surface Anatomy

study of general form and superficial markings

Positive Feedback

an initial stimulus produces a response that exaggerates or enhances the change in the original conditions; not opposing

Disease

organ systems begin to malfunction, producing a state of illness

State of Equillibrium

exists when opposing processes or forces are in balance

Anatomy

study of internal and external structures of the body and the physical relationship among body parts

Physioogy

study of how living organisms perform vital functions

Homeostatic Regulation

adjustments of physiological systems to preserve homeostasis

Microscopic Anatomy

deals with structures that can’t be seen without magnification

Autoregulation

occurs when a cell, tissue, organ, or organ system adjusts its activities automatically in response to environmental changes

cells

simplest unit of life

Regional Anatomy

focuses on the anatomical organization of specific areas of the body

Homeostasis

refers to the existence of stable internal environment

Organs

combined tissues

Control Center

receives and processes the info supplied by the receptor and sends out commands

effector

a cell or organ that responds to the commands of the control center and whose activity either opposes or enhances the stimulus

Negative Feedback

most homeostasis regulatory mechanisms involve it

Developmental Anatomy

describes the changes in form that occur between conception and physical maturity