Anatomy - ✔✔ correct answer The study of body structure
Physiology - ✔✔ correct answer The study of body function
Homeostasis - ✔✔ correct answer Process by which organisms maintain a relatively stable internal
environment
Structural Hierarchy of Organization - ✔✔ correct answer 1. Chemical
2. Cellular
3. Tissue
4. Organ
5. Organ System
Characteristics of Living Things (Eight) - ✔✔ correct answer 1. Maintaining Boundaries
2. Movement
3. Responsiveness
4. Digestion
5. Metabolism
6. Excretion
7. Reproduction
8. Growth
Factors of Survival (Five) - ✔✔ correct answer 1. Nutrients
2. Water
3. Oxygen
4. Normal Body Temperature
5. Appropriate Atmospheric Pressure
Components of a Control Mechanisim (Three) - ✔✔ correct answer 1. Receptor
2. Control Center
3. Effector
, APHY 101: Exam 1 over Ch. 1-4
Principle of Homeostasis - ✔✔ correct answer Process are designed to bring systems back to
baseline
Receptor - ✔✔ correct answer Sensor that monitors the environment & responds to changes
(stimuli) by sending info to the control center.
*Input flows from receptor to CC along afferent pathway.
Control Center - ✔✔ correct answer Establishes the set point. Analyzes input & determines
appropriate response.
Effector - ✔✔ correct answer Provides the means for the control center's response (output) to the
stimulus.
Negative Feed Back Control (Loop) - ✔✔ correct answer Product feeds back to inhibit the original
stimulus. Brings systems back to baseline; very common.
i.e. regulation of thyroid hormone levels
Positive Feed Back Control (Loop) - ✔✔ correct answer Product stimulates the original stimulus.
Drives systems away from baseline; rare.
i.e. labor & delivery
Anatomical Position - ✔✔ correct answer Standard universal position of the body for the purpose of
study. Stand erect, feet forward, arms at side with palms facing forward, head facing forward.
Neutral Atom - ✔✔ correct answer No charge; has equal number of electrons and protons.
Ion - ✔✔ correct answer An atom or molecule with a net electric charge due to the loss or gain of
one or more electrons.