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or cellular component and research a disorder that affects it. Then, answer the following:The disorder that I researched is Primary Ciliary Dyskinesia also known as PCD or immotile cilia syndrome. PCD is abnormal functioning cilia (immotile). Cilia and flagella are specialized motile projections that stick out from the surface of cells. (Tortora, 2017). Flagella is a motile taillike structure that projects the sperm forward. Cilia may be found on free surfaces of epithelial tissue cells found in the linings of the airway, the reproductive system, and other organs and tissues. According to the U.S. National Library of Medicine, 2018, PCD is characterized by chronic respiratory tract infections, reoccurring ear and sinus infections, abnormally positioned internal organs, and infertility due to abnormal cilia and flagella. Cilia rhythmically move fluids such as mucus and remove dirt from respiratory tract and sinus cavities so that we can breathe without irritation or receive infection to other internal organs. The primary source of treatment for PCD is antibiotics, however, bronchodilators (inhalers that dilate the airway and reduce restricted breathing), or anti-inflammatory medicines may also be used.
SC121 Unit 4 AssignmentPART 2Question #1Name of tissue:Skeletal Muscle Fibers/TissueTwo characteristics used for identification:Skeletal muscle tissue is long, cylindrical, alternating striated fibers. Question #2Name of epithelium:Stratified Cuboidal EpitheliumDiscuss the classifications of epithelial tissue based on:Cell layersThis epithelium has 2 layers of cellsShapeThe cells are cube shaped.
SC121 Unit 4 AssignmentHow tdid this knowledge help you to identify the epithelium?This knowledge helped me identify this as stratified cuboidal epithelium because stratified tissue consists of two or more layers of cells, and also the cells in the apical layer are cubed.Question #3Structure name:NeuronIdentify each label:A – DendriteB – Cell body (containing nucleus and organelles)C – AxonDirection of the nerve impulse:Dendrites receive incoming nerve impulse from other neurons and the axon transmits the impulse to another neuron or receptor.