NFSC 100 Lecture Notes - Lecture 3: Endoplasmic Reticulum, Integumentary System, Skeletal Muscle
11 Dec 2016
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Document Summary
The cell the basic unit of life. Ribosome: protein synthesis, free or on er. Smooth cholesterol synthesis and fat metabolism: rough. Plasma membrane: regulates what enters/leaves cell. Membrane receptors: proteins on outer surface or cell or nuclear membrane that detects signals. Cytosol: fluid and organelles between nucleus and outer membrane. A group of cells performing a specialized function: epithelial, connective, muscular, nervous. A group of tissues performing a specialized function. Provides covering for the body and maintains body temperature. Nutrients play major role in development and maintenance. High energy and nutrient requirements, depending on activity. Brain, spinal cord, nerves, and sensory receptors. Food components can also affect development and function. Glands including pituitary, thyroid, adrenal, pancreas, etc. Secretes hormones that help control body activities such as growth and reproduction. Transports nutrients and oxygen around the body. Diet can benefit or impair functions, depending on the composition of diet. Lymph vessels, lymph nodes, and organs including spleen and tonsils.
