Lecture 1 - Introduction Flashcards
Define Anatomy
the study of structure (design) which often determines or constrains organ functions
Define Gross anatomy
the study of macroscopic (largely observable) structures
Define Microscopic Anatomy
study of cellular structure or tissues
Define Physiology
explains the mechanism of the body parts
Anatomy and physiology are…
Always related
Structure determines…
Functions
Level of Organization
- Cells
- Tissues
- Organs
- Organ Systems
- Organismal
Define Homeostasis
Maintenance of body equilibrium to keep a constant environment
What is involved in homeostasis?
Involves feedback system where the response to a stimulus would trigger the body system to maintain the organism’s internal environment within the homeostasis range.
Define Feedback Mechanism
General mechanism of nervous or hormonal regulation in animals.
Negative feedback vs Positive feedback
Negative feedback diminishes the original stimulus
Positive feedback enhances the original stimulus
Why is negative feedback common?
Most changes to a steady state is away from the homeostatic range. Negative feedback would be able to diminishes that effect.
