lOMoAR cPSD|19500986 lOMoAR cPSD|19500986
BIOS 252 Midterm Exam 2023 / BIOS252 Midterm Exam (Review
and Essay Question Answer) Anatomy and Physiology II with Lab:
Chamberlain College of Nursing
Exam Format:
A&P 1 Midterm Study Guide
35 Multiple choice @ 3 pts 4 Pick all that apply @ 5 pts 15 Fill in the blank @ 2 pts 1 essay @ 15 pts
Ch. 1
Anatomy
- “Cutting things up.” Structure of the body and how the parts relate to each other in space.
Physiology - “Study of nature.” Function of a living organism, how it works, and maintains life.
Levels of organization (molecular, cellular, tissue level, etc.) - Chemical/molecular level: atoms and molecules
- Cellular level: cells – basic structural unit of life, smallest living unit
- Tissue level: tissues are groups of cells that work together to perform a particular function
- Organ Level: organ is a collection of tissues
- Organ System: several levels
- Organism level: the human body
Homeostasis (give examples, thermoregulation, water regulation, blood pressure regulation) - Condition of equilibrium in the body’s internal environment, and maintained by regulatory
processes. - Survival of our body cells is dependent on the precise regulation of the chemical composition of
their surrounding fluid
o Fluid known as extracellular fluid, and fluid that fills narrow spaces between cells is
interstitial fluid.
▪ Other types are blood plasma, lymph, cerebrospinal fluid, synovial fluid, aqueous
humor, and vitreous body. - Internal conditions are in a dynamic equilibrium; set point (like thermostat in house)
- Essential for maintenance of life; death and disease
- Homeostatic control loop; receptor, control center and effector
lOMoAR cPSD|19500986
- Negative Feedback: works to oppose change, brings condition back to a set point. i.e. – blood
pressure - Positive Feedback: works to enhance change, brings condition further away from a set point.
i.e. – childbirth, blood clotting. Things that don’t occur a lot. - Water Regulation: kidneys and water balance concentration of mineral ions in the blood, get
rid of waste products, especially nitrogen-containing compound called urea.
o Can also be excreted, and removes heat from the body when a person sweats, helping
regulate body temp.
1