EXAM QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS VERIFIED GRADED A++
Anatomy and Physiology
The study of structure and function relationships in the human body.
Homeostasis
The maintenance of a stable internal environment requiring energy and regulatory
mechanisms.
Major levels of organization
Atom, molecule, organelle, cell, tissue, organ, organ system, organism.
Negative feedback
When the pathway causing the effect gets activated and then when the desired result is
achieved, the result shuts off the pathway.
Example of negative feedback
Control of body temperature through sweat production and blood redistribution to cool
the body.
Positive feedback
When the pathway causing the effect gets activated and continues to increase the effect
until a desired result is achieved.
Example of positive feedback
, Platelets converging on blood vessel damage during blood clotting, releasing chemicals
that attract more platelets.
Cell structure and function
The structure of a cell determines its function.
Tissue
A group of cells working together to perform a similar function.
Epithelial tissue characteristics
Cellular, avascular, and attached.
Functions of epithelial tissue
Protection from injury, immune defense, secretion, transport of substances, and
sensation.
Locations of epithelial tissue
Covering all exposed surfaces, inside and outside of the body.
Connective tissues (CT)
Mostly matrix with scattered specialized cells, found in many places in the body,
functioning to connect and give structure.
Muscle tissue
Has structures that allow for contraction, found associated with the skeleton, heart, and
muscular tubes.
Nervous tissue
Contains neurons and support cells called neuroglia, found in the brain, spinal cord, and
nerves.
Epithelia