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20 Cards in this Set
- Front
- Back
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Function of Epithelial Cells
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Protection, Secretion, Filtration, Excretion, and Absorption
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Commonality between Epithelial Cells
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1. Limited intercellular space. 2. Single or multiple layer of cells 3. Free apical surface 4. Avascular 5. Mitotic capability |
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Shape and Class type of Epithelial
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Shape- Squamous, Cuboidal, Columnar Class type- Simple, Stratified, pseudostratified |
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Covers and Linings Vs. Glandular Epithelial Tissue
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Covering and Lining-=internal and external lining of many organs Glandular Epithelial Tissue= secretory/excretory tissue from glands. |
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Definition of Cell Junction; Three types of Cell Junction.
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Cell Junction is the connection between one cell and another. Gap Junction- Desmosomes- Tight Junction |
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Function of Connective Tissue
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1. Binding to Organs 2. Support 3. Physical Protection 4. Immune Protection 5. Movement 6. Storage 7. Heat Production 8. Transport |
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Characteristics of Connective Tissue
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-Cells not in direct contact with each-other, but separated by matrix -Serve to bind organs to each-other -Form structural framework for an organ, and also provides support and protection to organ. -Vary in vascularity. |
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Types and Location of Connective Tissue
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Fibrous CT- Loose and Dense Connective Tissue; ground substance, Bone, Spleen, nerves Adipose CT- Breast, Surrounding eyes and kidneys. Cartilage CT- Nose and Ear Bone CT- Femur and Mandible Blood CT- Red Blood Cells and White Blood Cells |
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Embryonic Vs. Mature Connective Tissue
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Embryonic Connective Tissue- mesenchyme (gelatinous tissue) that develops into the majority of mature connective tissue. Mature Connective Tissue- The 5 types of connective tissue- Fibrous, Adipose, Cartilage, Bone and Blood. |
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Characteristic of Membranes
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Composed of epithelial tissue or Connective tissue ONLY, or epithelial, connective, and muscular tissue.
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Cutaneous Membrane
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-Largest membrane - Referred as "The Skin" -Stratified squamous epithelium resting on a layer of connective tissue (Dermis) |
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Mucous Membrane
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-lines passages that open to the exterior environment. -Consist of two layers: Epithelium and an areolar connective tissue layer (Lamina Propria) *Sometime contains a layer of smooth muscle tissue (muscularis mucosae) |
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Serous Membrane
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-composed of simple squamous epithelium resting on thin layer of areolar connective tissue -Produces a watery serous fluid |
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Muscular Tissue
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Specialized to contract when stimulated and thus exerts a physical force on other tissu8es, organs, or fluids. *important source of body heat |
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Skeletal Muscle
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*Found in Tongue, Upper Esophagus, and Facial muscles -Consist of long thread-like cells called muscle fibers -Can be either striated or voluntary -Contains multiple nuclei, adjacent to plasma membrane Striated muscle- created by overlappig patterns of cytoplasmic protein filaments that cause muscle contractions Voluntary- having conscious control over skeletal muscles. |
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Cardiac Muscle
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-Limited to the heart -Short cells (Cardiocytes) -Contains only one nucleus per cell -Joined together end by end by junctions referred as intercalated discs. -involuntary |
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Smooth Muscle
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*Found in iris of the eye and the skin; forms visceral layer of some organs -lack striations -involuntary -Fusiform and relatively short (Myocytes) |
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Nervous Tissue
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Specialized for communication by means of electrical and chemical signals. -Two cell types: Nerve and Glial Cells Found among central and peripheral nervous system |
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Nerve Cells (Neuron)
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detect stimuli, respond quickly, and transmit coded information rapidly to other cells Examples: Olfactory, Optic, Trochlear, Trigeminal, Auditory, etc. |
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Glial Cells
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-protect and assist the neurons -Examples: Oligodendrocytes, Astrocytes, Schwann cells, microglia, and satellite cells. |
