chapter 1 quiz 1 pt2

saggital

section divides the body (or organ) into left and right parts

median/midsaggital

section divides the body (or organ) into equal left and right parts

frontal/coronal

section divides the body (or organ) into anterior and posterior parts

transverse

or cross, section divides the body (or organ) into superior and inferior part

dorsal

ventral

two body cavities

cranial cavity

spinal cavity

two subdivisions of dorsal body cavity

thoracic cavity

abdominopelvic cavity

two subdivisions of ventral body cavity

right upper quadrant

right lower quadrant

left upper quadrant

left lower quadrant

4 quadrants of abdominopelvic cavity

right hypochondriac region

epigastric refion

left hypochondriac region

right lumbar region

umbilical region

left lumbar region

right iliac region

hypogastric region

left iliac region

nine regions of abdominopelvic cavity

homeostatis

maintenance of relatively stable internal conditions

receptor

control center

effector

3 control mechanism of homeostatis

receptor

Responds to changes in the environment (stimuli)

Sends information to control center along an afferent pathway

control center

Determines set point

Analyzes information

Determines appropriate response

effector

Provides a means for response to the stimulus

Information flows from control center to effector along efferent pathway

negative feedback

Includes most homeostatic control mechanisms

Shuts off the original stimulus or reduces its intensity

Works like a household thermostat

positive feedback

Rare in the human body

Increases the original stimulus to push the variable

farther

Reaction occurs at a faster rate

In the body, positive feedback occurs in blood clotting

and during the birth of a baby