Exam I Study Guide_HPhys_WTR_18.docx

Exam I Study Guide_HPhys_WTR_18.docx - TBIOL 302 Human...

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TBIOL 302: Human Physiology Winter 2018 Exam I Study Guide Chapter 3: Cells & Tissues •Link the types of cell junctions with their functions and the membrane protein(s) they exhibit (lecture 1, slides 8 & 12) Gap Junction: communicating junction. Connexin. Tight Junction: occluding junction- prevents transfer of material. Claudin, occluding. Anchoring Junction: o Cell-cell with cadherins. Desmosomes. Adherene junction. o Cell-matrix with integrins. Focal Adhesions. Hemi-desmosome. •Recognize how specific features of epithelial structure relate to their function (lecture 1, slides 14-22) Exchange: Gas exchange. Simple squamous epithelium. Endothelium lines the circuitry system. Transporting: Cuboidal or Columnar shaped. Membrane modifications present: apical membrane faces lumen and basolateral membrane faces ECM. Uses tight junctions to selectively move things. Ciliated: Uses cilia to move fluid and particles in respiratory system and female reproductive tract. Protective: Tightly connected through desmosomes. Has many stacked layers that are constantly being replaced such as in the skin. Secretory: Can be scattered or grouped into glands. Has exocrine and endocrine. o Exocrine: release products to the external environment mostly through ducts. Serous secretions: watery, enzyme containing. Mucous secretions/Mucus: produced by goblet cells. o Endocrine: release hormones into extracellular compartments (into body). •Link connective tissue types with their cell types and fiber types (lecture 1, slide 27). Loose connective tissue: o Cell types: fibroblasts o Fiber types: collagen, elastic, reticular; random Dense, irregular connective tissue: o Cell types: fibroblasts o Fiber types: mostly collagen; random
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Dense, regular connective tissue: o Cell types: fibroblasts o Fiber types: collagen; parallel Adipose tissue: o Cell types: brown fat and white fat o Fiber types: none Blood: o Cell types: blood cells o Fiber types: none Cartilage: o Cell types: chondroblasts o Fiber types: collagen Bone: o Cell types: osteoblasts and osteocytes. o Fiber types: collagen. •Match features of the skin with their location and general function (lecture 2, slide 17) Arrector pili muscles: pull hair follicles into a ventricle position when the muscles contracts, creating “goose bumps” Sebaceous glands: exocrine glands that secrete a lipid mixture Hair follicles: secrete the non-living keratin shaft of hair Sweat glands: secrete a dilute salt fluid to cool the body.
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  • Winter '17
  • Marc Nahmani
  • membrane receptor

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