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Week 13
Contents from Week 6-12
| Term | Definition |
|---|---|
| Blood Flow | Superior Vena Cava R Atrium Tricuspid Valve R Ventricle Pulmonary Semilunar Valve Pulmonary Trunk Pulmonary Artery Capillaries of the Lung Pulmonary Veins L Atrium Bicuspid Valve L Ventricle Aortic Semilunar Valve Aorta Coronary Arteries |
| Flow of lymph through node | Enters through afferent vessels on convex side of the node Subcapsular sinus Outer cortex Deep cortex Medullary sinus Exits through efferent vessels of the hilus |
| Lymphatic ducts | All lymphatic vessels drain into one of two lymphatic ducts: 1. Right lymphatic duct 2. Left thoracic duct These ducts empty lymph back into the venous blood at the right and left subclavian. |
| Functions of the Respiratory System | 1. Gas exchange between external environment and blood 2. Warm, humidify, and filter air of pathogens 3. Sound production 4. Smell 5. Maintain pH homeostasis |
| Conducting portion of respiratory system: conduct air into and out of lungs | Nose, pharynx, larynx, trachea, bronchi |
| Respiratory portion of respiratory system: gas exchange occurs | Respiratory bronchioles, alveolar ducts, alveoli |
| Erythrocytes | Red blood cells No nucleus Biconcave discs Contain hemoglobin (protein that binds and carries oxygen and CO2) Lifespan of 120 days then destroyed by spleen or liver |
| Leukocytes | White blood cells Protect against infection and initiates inflammation Destroy cancerous cells Tissue repair |
| Neutrophils | Phagocytes (60-70%) Multi-lobed nucleus Stain pink/light purple First sign of infection and triggers inflammation |
| Eosinophils | Attack parasites and increase during allergies (1-4%) Bi-lobed nucleus Red/pink stained granules |
| Basophils | Release histamines which play a role in inflammation (<1%) Bi-lobed nucleus Dark purple/blue stained granules |
| Lymphocytes | T cells and B cell (25-33%) Specific immune defenses Large round nucleus Stain blue with purple nuclei |
| Monocytes | Phagocytes (2-6%) Travel into the tissue and mature into macrophages Large horseshoe shaped nucleus Stain blue with purple nuclei |
| Platelets | Irregular shaped cell fragments from megakaryocytes Play role in clotting blood Hemostasis (prevents blood loss when blood vessels are damaged) |
Created by:
stefwong
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