ANP 1105 Lecture Notes - Lecture 3: Parathyroid Gland, Sympathetic Nervous System, Adrenal Medulla

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Weixuan Li

Document Summary

Nutrients: chemicals for energy and cell building. Oxygen: essential for energy release (atp production) Normal body temperature: 37oc, affects rate of chemical reactions. Appropriate atmospheric pressure: adequate breathing and gas exchange in lungs. Ability of the body to maintain relatively stable internal conditions even though there is a continuous change in the outside world. Not unchanging a dynamic state of equilibrium involving many systems: adequate blood levels of vital nutrients, heart activity/blood pressure monitored and adjusted as needed, wastes must not accumulate, maintenance of body temperature. Constant monitoring and regulation of all factors that can change (variables). Communication for monitoring and regulation: nervous and endocrine system (neuroendocrine) Homeostatic imbalance a disturbance of homeostasis: aging associated with progressive decrease in our ability to maintain homeostasis. Most feedback mechanism in the body are to reduce or shut off original stimuli: blood volume (endocrine, body temperature (nervous)