Anatomy and Physiology Module 1-2 Flashcards
Anatomy
studies structures of body parts and relationship to one another
Physiology
studies function of the body and how it works
Catabolism
metabolic pathways that breakdowns molecules into smaller units either oxidized to release energy or used for anabolic reactions
Anabolism
pathways that construct molecules from smaller units; requires energy also know as ENDERGONIC PROCESS
Homeostatis
ability to maintain relatively stable internal conditions
Homeostatic Imbalance
inability of the body to restore a functional and stable environment
Visceral
covers the organ
Parietal
lining the walls
Serous Fluid
lubricating fluid that separates the serosa
Colloid
solute particles are larger in solution and scatter light; do not settle out
Suspension
solute particles are very large, settle out and may scatter light
Organic Compounds
contain carbon and made by living things
Inorganic Compounds
lacks carbon except carbon except carbon dioxide and carbon monoxide
Polyatomic Ions
groups of atoms that bear an overall charge
Acids
also called proton donors. Substance that release hydrogen ions in detectable amounts
Bases
proton acceptors. Substance that take up hydrogen ion is detectable amount
pH
measures the relative concentration of hydrogen ions in various body fluids
Neutralization
when acids and bases mix, displacement reaction occur to form water and salt
Macromolecule
large complex of molecule with thousands of atoms
Cells
smallest unit of life, all organism are made out of
Nucleus
organelle that controls cellular activities
Cytoplasm
intracellular fluid packed with organelles
Plasma Membrane
selectively permeable barrier
Cellular Secretions
substances that aid in digestion (gastric fluid) or act as lubricants (saliva)
Cell Junctions
allow neighboring cells to adhere and to communicate. Allowing movements molecules between cells
Phospholipids
form basic structure of the membrane
Cholesterol
stiffens membrane; decrease water solubility of membrane
Proteins
determine what functions of membrane can perform
Carbohydrates
act as identity molecules; allow cells to recognize “who is who” during development
Physical Barrier
encloses the cell, separating the cytoplasm from extracellular fluid (ecf)
Hypotonic
more dilute than cells, cells pump up or lyse
Active Transport
required transport proteins that combine specifically and reversibly with transported substances
Contact Signaling
which cells come together and recognize one another
Chemical Signaling
process in which liquid (chemical messenger) binds specific receptor and response
Hormones
signals from the endocrine
Paracrines
chemicals act locally and rapidly destroyed
Endomembrane System
organelles that work together to produce, export and store biological molecules
Interphase
period from cell formation to division
Mitosis
division of the nucleus that deliver out replicated DNA of parent to two daughter cell
Cytokinesis
division if the cytoplasm