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Rachel Rodriguez

Anatomy weeks 1-5

TermDefinition
Cells The smallest living units of structure and function in the human body. Fundamental organizational unit of life
Molecules Atoms combined to from larger chemical aggregates
Characteristics of Life Circulation, Conductivity, Digestion & Reproductive
Ventral/Dorsal Two major body cavities of the human body
Tissue Similar to cells that are specialized to perform a specific function
Sagittal Left/right positions
Coronal Anterior/posterior
Organ Several kinds of tissues that are working together
Hydrogen Isotope Tritium One proton, two neutrons
Study of Metabolism Anabolism, Catabolism & ATP requirements
Gastric pH Approximately 2
Synthesis Reaction Substances that are combined to form more complex substances
Alkaline (basic) solutions Greater concentration of hydroxide ions & pH level is more than 5.
Atomic Mass Protons + Neutrons
Acids Proton donors, tastes sour, releases hydrogen ions in an aqueous solution. pH level is less than 5.
Dehydration Synthesis Formation of sucrose involves the removal of a molecule water
Octet Rule Stability of the atom when there are eight electrons in the outermost level
Ionic Bond Positive & negative charges/ions that are attracted to each other
Bases Accepts hydrogen ions
Caveolae Tiny indentations of the plasma membrane
Phospholipid Bilayer Barrier function of the plasma membrane
Microfilament Cellular muscles
Microvilli Cell extension that contains microfilaments, assists epithelial cells in absorption
Chromatin Threads within the nucleus
Desmosomes Hold skin cells together
Cilia Projections from cells that moves materials and mucus
Centrosome Microtubule organizing center
Ribosome Nonmembranous organelle
Mitochondrion "Power house of the cell", ATP production
Proteasomes Allows for recycling of amino acids within a cell
Lyosomes Associated with enzymatic break down of foreign material
Smooth ER Supplies membrane for use throughout the cell, making steroid hormones & glycoproteins
Golgi apparatus Processes & packages materials to be secreted
Cell fibers: from large to small Microtubules, intermediate filaments, microfilaments
Glycoprotein molecules Identification function of the cell membrane
Stratum Corneum The most superficial layer of the epidermis
Cerumen Brown waxy substances form by the secretions of sebaceous & ceruminous glands
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