anatomy ch 1

anabolism

small molecules formed to join larger ones

catabolism

large molecules, broken down in the smaller ones

responsiveness

ability to send and react to stimuli

chemical level

atoms, molecules, macromolecules

cellular level

basic units of life

section

actual cutter slice exposes internal anatomy

plane

imaginary flat surface passing through body; 3 types

axial region

head, neck, trunk, forms main vertical axis of body

appendicular region

upper and lower limbs

body cavities are grouped into a

posterior aspect and ventral cavity

serous membranes

subdivisions of ventral cavity are lined with this

two types of serous membranes

parietal and visceral layers

serous cavity

space between membranes

parietal layer

lines infernal surface of body wall

visceral layer

coveralls external surface of organs (viscera)

mediastinum

median space in thoracic cavity

pericardium

two layered serous membrane

pleura

two layered serous membrane in lungs

peritoneum

two layered serous membrane lining abdominopelvic cavity

receptor

detects change in a variable

control center

interprets input from receptor and initiates change through effector

effector

structure that brings about changer to alter the stimulis

negative feedback

resulting action is in the opposite direction of the stimulis

positive feedback

stimulus reinforced to continue moving variable in the same direction until a climactic event occurs, then the body returns to homeostasis

homeostatic body temp

98.6 F

homeostatic blood glucose

80-110 mg/dL