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Practical 2
| Question | Answer |
|---|---|
| Description and function of Simple squamous? | Single layer of flat cells Functions: Permeability, secretion |
| Description and function of Simple cuboidal? | Single layer of square cells Functions: Absorbtion, Secretion |
| Description and function of Simple Ciliated Columnar? | Singler layer of tall cells Functions: Secretion, Protection, Absorption |
| Description and function of Simple Columnar with goblet cells? | Single layer of tall cells Functions: Secretion, Protection, Absorption |
| Description and function of Pseudostratified Ciliated Columnar with goblet cells? | Single layer of tall cells that appear multi layered Functions: Secretion, Protection |
| Description and function of Stratified Squamous? | Multiple layers of flat cells Function: Protection |
| Description and function of Transitional? | Multiple layers of square cells that can change their appearance Function: Ability to stretch and recoil |
| Location of simple squamous | Alveoli of lungs, kidneys, blood vessels, ventral body cavity |
| Location of simple cuboidal | kidneys, thyroid gland |
| Location simple ciliated columnar | fallopian tubes |
| Location simple columnar with goblet cells | stomach, small and large intestine |
| Location Pseudostratified ciliated columnar with goblet cells | Nasal cavity, trachea, bronchi |
| Location stratified squamous | Nose, mouth, esophagus, anus, vagina, urethra, epidermis of skin |
| Location Transitional | Bladder Ureters |
| List all the properties/ traits that epithelia have in common | 1. exposed 2. lots of cells tightly packed together 3. cells exhibit polarity 4. attached at basement membrane 5. cells have layers or sheets 6.highly mitotic 7. avascular |
| What are the criteria used to classify epithelia tissue | cover the body, lines spaces in body and forms gland over body |
| What does a goblet cell secrete | They secrete mucus |
| Location of Areolar CT | under skin, around organs |
| Location of Adipose CT | hypodermis, kidneys |
| Location of Reticular CT | liver, spleen |
| Location of Dense Regular CT | Ligaments, Tendons |
| Location of Dense Irregular CT | Dermis, heart valves |
| Location of Elastic CT | Lungs, large blood vessels |
| Location of Hyaline Cartilage | Nose, trachea |
| Location of Fibrocartilage | meniscus, symphysis pubis |
| Location of Elastic Cartilage | epiglottis, pinna |
| Function of Areolar CT | protection, reduces friction |
| Areolar CT: cell type, protein fibers, and functions | Fibroblasts and macrophages, all 3 types protection, reduces friction |
| Adipose CT: cell type, protein fibers and functions | Adipocyte Reticular Protection, Insulation |
| Reticular CT: cell type, protein fibers and functions | Fibroblasts Reticular Support |
| Dense Regular CT: cell type, protein fibers and function | Fibroblasts Collagen High tensile strength in one direction |
| Dense Irregular CT: cell type, protein fibers, and function | Fibroblasts Collagen High tensile strength in different directions |
| Elastic CT: cell type, protein fibers, and function | Fibroblasts Elastic Stretches and Recoils |
| Hyaline Cartilage: protein fibers, and function | Collagen- not visible Support, attachment |
| Fibrocartilage: cell type, protein fibers, and function | Collagen Shock Absorber |
| Elastic Cartilage: cell type, protein fibers, and function | Elastic Maintain structure while allowing some deformation |
| Epidermis: Location and cells | Top layer, keratinized simple squamous Keratinocytes and melanocytes |
| Layers of epidermis | Stratum Basale- 1st layer of epithelium (bottom) Stratum Corneum- multiple layers of dead keratinocytes (top) |
| Dermis Regions | Papillary- top 1/5 of dermis (under epidermis) areolar CT Reticular- Bottom 4/5 of dermis: dense irregular CT Hair follicle (made of epithelial tissue) Sebaceous gland Sudoriferous gland (sweat gland) |