Unit 1: Introduction to Anatomy and Physiology Flashcards
Homeostasis
all body systems working together to maintain a stable internal environment
Positive Feedback
response amplifies the stimulus, causing the feedback loop to repeat until the desired response is reached and homeostasis is restored
Negative Feedback
variation triggers a response that corrects situation
Stimulus
Anything that provokes a response in an organism
Receptor
receives/detects a stimulus
Control Center/Integrator
processes signal & determines response
Effector
carries out response
Anatomical Position
hands at sides, palms forward
Supine
lying face up
Prone
lying face down
Superior
being closer to the head or higher than another structure of the body
Inferior
being closer to the feet or the lower part of the body than another structure in the body
Anterior
being more in the front than another structure in the body
Posterior
being more in the back then another structure in the body
Medial
being closer to the median plane than another structure in the body
Lateral
being further away from the median place then another structure in the body
Proximal
only used with the limbs, being closer to the median place or the root of the limb than another structure in the limb
Distal
only used with limbs being further away from the median plane or the root of the limb than another structure in the limb
Superficial
closer to the surface
Deep
further away from the surface
Sagittal
a sagittal plane separates right and left portions
Midsagittal
the plane passes through the midline dividing the body in half and separating the left and right sides
Frontal
separates the anterior and posterior portions of the body
Transverse
separates the superior and inferior portions of the body
Right Upper Quadrant (RUQ)
1
Right Lower Quadrant (RLQ)
2
Left Upper Quadrant (LUQ)
3
Left Lower Quadrant (LLQ)
4
Abdominopelvic Quadrants
way the abdomen and pelvis can be divided into four parts
Abdominopelvic Regions
why the abdomen and pelvis can be divided into nine parts
Right hypochondriac region
1
Left hypochondriac region
3
Right lumbar region
4
Left lumbar region
6
Right inguinal region
7
Left inguinal region
9
Epigastric region
2
Umbilical region
5
Hypogastric (pubic) region
8
Body Cavities
Function to protect, separate, and support internal organs
Serous Membrane
line body cavities & secrete serous fluid to prevent friction b/w organs and cavity walls