Study guide Week 1&2

Study guide Week 1&2 - TA Victoria Ha Email...

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TA: Victoria Ha Email: [email protected] Section: (B03) Monday 5:00-5:50pm Solis 111 Disclaimer: These notes are intended for you to supplement your studies. They are by no means a substitute for going to lecture!! Four types of tissues (pg 856 8 th edition) 1. Epithelial tissue : collection of cells that line the outside of the body and lines organs and cavities within the body stratified squamus – (skin, vagina, urinary bladder) layered because its usually sloughed off so the cells need to be replaced. pseudostratisfied (airways) – it has cilia that have whiplike movements that moves up the mucus upward and comes up as phlegm. simple squamus – flat (aveoli of lungs, blood vessels) because it needs very short diffusion distance for nutrients and gases cuboidal – (tubes/capillaries/ kidney tubules) 2. Connective tissue – provides structural support, strength, elasticity. Holds bones/organs in place. Loose connective tissue – most common. Cells secrete collagen and elastin, forming elastin fibers to attach different tissues together. Fibrous connective tissue – dense with collagenous fibers. Form fibrous connective tissue i. Tendons – connects MUSCLE to BONE ii. Ligaments – connects BONE to BONE. Blood – RBC (oxygen), WBC (immune defense) , platelets (clotting), water, salt, protein. Adipose tissue –stores fat for insulation of the body and storage of energy. Cartilage- secrete chondrotin sulfate that make cartilage strong and flexible. 3. muscle tissu e – responsible for nearly all types of body movements striated – contractile, striated. Will shorten when activated i. skeletal – responsible for voluntary movements ii. cardiac – form contractile wall of the heart. Smooth – not striated. Covers the walls of all hollow organs in walls of intestines, urinary bladder, arteries, uterus etc. also found in iris of the eye Responsible for involuntary movements (churning of stomach, constriction of arteries). Regulated by horomones and autonomic system. 4. Nervous tissue – senses stimuli and transmits signals in form of nerve impulses.
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Study guide Week 1&2 - TA Victoria Ha Email...

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