Chapter 1 - Important Terms Flashcards
(21 cards)
Components of a Feedback loop?
Stimulus, Sensor, Control Center, Effector
Positive Feedback
When deviation occurs, the response is to make the deviation greater.
Homeostasis
The maintenance of a relatively constant internal environment of the body
Negative Feedback
Counteracts a change in a variable by decreasing the change to maintain homeostasis.
Feedback System
A mechanism that regulates internal conditions of an organism
6 levels of organization (Small to Big)
Chemical, Cell, Tissue, organ, organ system, organism.
Tissue Level
A community of similar cells that form a bodily tissue.
Organ Level
A two or more similar tissues that combine to form an organ.
Organ System Level
Two or more organs that work together to perform a function or meet a physiological need of the body.
Organism Level
Many organ systems that work together to perform functions for an independent organism.
Chemical Level
Atoms bonded to form molecules with 3-Dimensional structures.
Cellular Level
Molecules combined to form fluid and organelles of a body cell.
Sagittal Plane
Divides body into left and right
Frontal Plane
Divides body into anterior and posterior
Transverse Plane
Divides body into superior and inferior.
Parietal Layer
Membrane next to the wall of the body cavity.
Visceral Layer
Membrane next to organ
Serous Membrane
Thin, double layered membranes that cover some body cavities and organs
Pericardial Membrane
Creates the pericardial cavity, houses the heart.
Pleural Membrane
Creates pleural cavity, houses lungs
Peritoneal Membrane
Creates peritoneal cavity, houses various Orans in the abdominopelvic region.
