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Kacey Munsell

Weeks 1-6

Homeostasis Relatively constant states maintained by the body. (Normal range)
Set point Normal reading
Integumentary Separates internal environment from external environment, providing stability of internal fluid volume
Skeletal Supports and protects internal environment, allowing movement; stores minerals that can be moved into and out of internal fluid
Muscular Powers and directs movements; provides heat
Nervous Regulates homeostatic mechanisms, sensing changes, integrating information, sending signals to effectors
Endocrine Regulates homeostasis by secreting signaling hormones that travel through internal environment to effector cells
Cardiovascular Maintains internal constancy by transporting nutrients, water, oxygen, hormones, wastes, and other materials and heat within the internal environment
Lymphatic Maintains constant fluid pressure by draining excess fluid from tissues, cleaning it, and recycling it to bloodstream
Immune Defends internal environment against harmful agents
Respiratory Maintains stable O2 and CO2 levels in body by exchanging these gases between external and internal environments; provides vocal communication with others for protection, hunting, etc.
Digestive Maintains relatively constant nutrient level in body by digesting food and absorbing nutrients into internal environment
Urinary Maintains constantly low level of waste and regulates pH of internal environment; helps maintain constancy of internal water volume and balance of ions and other substances
Reproductive Passes genetic code containing information for forming a body and maintaining homeostasis to offspring
Afferent A signal is traveling toward a particular center or point of reference,
Efferent A signal is moving away from a center or other point of reference
Primary structure The number, kind, and sequence of amino acids that make up the polypeptide chain
Secondary structure The chains are coiled or bent into pleated sheets.
Tertiary structure The polypeptide chain is so twisted that its coils touch one another in many places, and “spot welds,” or interlocking connections, occur.
Quaternary structure Contains clusters of more than one polypeptide chain, all linked together into one giant molecule.
Diffusion The tendency of small particles to spread out evenly within any given space.
Osmosis The movement of water through a semipermeable membrane
Created by: kacey13