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physiology stack 2
| Question | Answer |
|---|---|
| What are body membranes | Membranes that line the body cavities, cover surfaces, and protect organs, typically composed of epithelial and connective tissue layers. |
| What are serous membranes? | line cavities not open to the exterior and consist of a parietal layer (lining the cavity) and visceral layer (covering the organ) |
| What are synovial membranes? | Synovial membranes consist only of areolar connective tissue and line joint cavities and tendon sheaths, producing synovial for lubrication. |
| What occurs during the inflammation stage of tissue repair? | Damaged cells release inflammatory chemicals, capillaries dilate, and white blood cells migrate to the area |
| What is granulation tissue? | forms during the organization stage of tissue repair and is produced by fibroblasts that create collagen |
| Which tissues have good regeneration capabilities? | epithelium, bone, areolar connective tissue, and dense irregular connective tissue. |
| What is the structure of a sarcomere? | The Z line (boundary), A band (thick filaments), I band (thin filaments), H zone (thick only), and M line (holds thick filaments) |
| What is the role of ACh at the neuromuscular junction? | ACh binds to receptors on muscle fibers, leading to depolarization and the spread of action potential through the sarcolemma. |
| What are the sources of ATP for muscle metabolism? | includes creatine phosphate, anaerobic glycolysis and aerobic respiration. |
| How does the skin regulate temperature? | The hypothalamus acts as the body's thermostat, sending signals for sweat production and vasoldilation/vasoconstriction. |
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