unit 1 (intro to anatomy and physiology) Flashcards
Define Anatomy
The study of the structure, shape, and size of body parts.
Define Physiology
The study of the function of body parts
Define Homeostasis
To maintain internal stability
The body is generally ______ when it is functioning properly.
homeostatic
Is homeostasis controlled by a negative or positive feedback loop?
negative feedback loop
What is negative feedback?
An imbalance is corrected, and balance is restored
What is positive feedback?
An imbalance is initiated until a goal is reached
What are the 2 main examples of positive feedback?
Childbirth, and blood clotting
What does the negative feedback loop diagram look like?
stimulus->sensor->control center->effector
what is the basic unit of structure in the body?
cells
what are groups of cells that work together to perform a particular function?
tissues
what are 2+ tissues that work together to perform a larger function?
organs
what are the 4 most common elements found in the human body?
carbon, oxygen, nitrogen, and hydrogen
ionic bonds involve _________ of electrons
the transfer
covalent bonds involve ________ of electrons
the sharing
