ANP 1105 Midterm: Anatomy midterm #2 notes

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1105
• Professor: Joanne Savory

Document Summary

The state of a body equilibrium, variable are regulated to ensure a stable internal environment in the body ex. The 3 essential characteristics to ensure homeostatic control: Receptor: senses the change (stimulus) and sends info (along affere(cid:374)t path(cid:449)a(cid:455)(cid:895) to the . Control center: analyzes info and determines the correct response. Effector: provides means for response (along efferent pathway) Feedback is either positive or negative and allows for regulation within an enhanced response. Stimulus enhances therefore the output is further stimulated (even greater change in the same direction) Agi(cid:374)g leads to progressi(cid:448)e de(cid:272)rease i(cid:374) (cid:271)od(cid:455)"s a(cid:271)ilit(cid:455) to re(cid:373)ai(cid:374) ho(cid:373)eostati(cid:272) System of motor neurons to smooth & cardiac muscle & glands to allow responses without awareness (usually) ex. Push blood to more needy areas, speed/slow heart & respiratory rates, adjust blood pressure and body temp, and increase/decrease gastric secretions. Parasympathetic: active in non-stressful situations, (cid:862)rest a(cid:374)d digest(cid:863) Keeps (cid:271)od(cid:455)"s e(cid:374)erg(cid:455) use lo(cid:449) while regulating ex.