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Anatomy-Aishae
Study Stack 1- Weeks 1-5
Term | Definition |
---|---|
Components of an atom | Protons, neutrons, electrons |
Protons | Positive, found in nucleus. For identity |
Electrons | negative charge, in the electron cloud. For interacting w/ others |
Neutrons | no charge, found in nucleus. For mass |
Metabolic breakdown (decomposition reaction) | catabolism |
Metabolic formation (synthesis reaction) | anabolism |
pH scale | measures the concentration of hydrogen ions in a solution Acids: high hydrogen, low pH Bases: low hydrogen, high pH |
Function of proteins | structure, movement, transport, metabolic regulation, coordination |
Plasma membrane function | controls what comes in and out of the cell |
Plasma membrane structure | phospholipid bilayer (hydrophilic heads and hydrophobic tails) |
Functions of proteins in plasma membrane | assist in the passage of materials into the cell interact, recognize other cells, bind with specific hormones, carry out specific metabolic reactions |
Function of Rough ER | protein synthesis |
Function of Smooth ER | Makes lipids, transports proteins from rough ER |
Function of mitochondria | "Powerhouse" of cell |
Function of nucleus | contain cell's DNA, control center |
Function of lysosomes | digest/break down food, waste, and broken parts |
Golgi apparatus function | modifies and packages proteins |
Active transport | sodium-potassium pump. Needs energy to get through membrane. Needs ATP |
Passive transport | the movement of substances across a cell membrane without the use of energy by the cell |
6 levels of organization | chemicals> cells>tissues>organs>organ systems> organism |
Negative feedback | A primary mechanism of homeostasis. Reacts to the environment to maintain homeostasis. Example: Temperature regulation |
Positive feedback | A control mechanism that amplifies rather than reduces the stimulus. Example: Breastfeeding. |
abdominopelvic cavity | digestive, excretory, and reproductive organs and structures. Has 9 regions |
Regions of the abdominopelvic cavity | 1.right hypochondriac region 2. right lumbar region 3. right iliac region 4. left hypochondriac region 5. left lumbar region 6. left iliac region 7. epigastric region 8. umbilical region 9. hypogastric region |
Characteristics of connective tissue | Binding and supporting, protecting, insulating, storing reserve fuel, transporting substances within the body. |
Function of collagen | Supports body tissues, gives skin strength, makes up connective tissue |
function of reticular fibers | delicate support |
function of elastic fibers | stretch and recoil |
Dense Regular Connective | Tendons, ligaments ; binds body parts |
dense irregular tissue | dermis of skin, submucosa of digestive tract |
elastic tissue | elastic ligaments of spinal vertebrae |
skeletal muscle | muscle attached to bone. provides the force that moves the bone. |
smooth muscle | Involuntary muscle found inside many internal organs of the body |
cardiac muscle | Involuntary muscle tissue found only in the heart. |
bone marrow | soft connective tissue within the medullary cavities of bones which produces blood cells |
medullary cavity | cavity within the shaft of the long bones filled with bone marrow |
compact bone | hard, dense bone tissue, usually found around the outer portion of bones |
spongy bone | located toward the end of long bone; contains small open spaces which lightens bone |
epiphyseal plate | growth plate, made of cartilage found near the ends of long bones; gradually turns to bone as skeleton matures |
bone remodeling | ongoing replacement of old bone tissue by new bone tissue |