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Anatomy Semester 1
Integumentary System
| Term | Definition |
|---|---|
| epithelial membranes | provide a lining, or covering, for the internal and external surfaces of the body. These membranes include both a sheet of epithelial cells and an underlying layer of connective tissue. |
| mucous membranes | line the body cavities that open to the outside world ex: mouth nose, urinary tract, bladder |
| Serous Membranes | line body cavities that are closed to the outside world ex: pleura, the pericardium |
| serous fluid | This fluid serves as a lubricant between the parietal and visceral membranes to minimize friction and “wear and tear” on organs that move within the linings, such as the beating heart. |
| Cutaneous Membrane | What we think of as our skin |
| Synovial membrane | line the capsules that surround synovial joints, such as the shoulder and knee. Produces synovial fluid |
| Synovial fluid | provides cushioning and reduces friction and wear on moving structures |
| Dermis | layer of skin between the epidermis and hypodermis; includes nerve endings, glands, and hair follicles |
| epidermis | the outer layer of the skin |
| Hypodermis | the layer of skin beneath the dermis, which serves as a storage repository for fat |
| epidermal dendritic cells | skin cells that initiate an immune system response to the presence of foreign bacteria or viruses. |
| keratin | a tough protein found in the skin, hair, and nails |
| melanin | a pigment that protects the body against the harmful effects of ultraviolet ray damage from the sun |
| merkel cells | touch receptors in the skin |
| Papillary layer | The papillary dermis is the superficial layer, lying deep to the epidermis. |
| Reticular layer | The reticular layer is the deep layer, forming a thick layer of dense connective tissue that constitutes the bulk of the dermis. |
| sebaceous glands | glands located all over the body that produce sebum |
| Sebum | an oily substance that helps to keep the skin and hair soft |
| Layers of the epidermis | Stratum Corneum Stratum Lucidum Stratum Granulosum Stratum Spinosum Stratum Basale |
| First-degree burns | burns that affect only the epidermal layer of skin |
| second-degree burns | urns that involve damage to both the epidermis and the upper portion of the underlying dermis; characterized by blisters |
| rule of nines | a method used in calculating body surface area affected by burns |
| basal cell carcinoma | the most common form of skin cancer and the least malignant type |
| squamous cell carcinoma | a type of rapidly growing cancer that appears as a scaly, reddened patch of skin |
| impetigo | a bacterial infection common in elementary school children that is characterized by pink, blister-like bumps, usually on the face |
| malignant melanoma | cancer of the melanocytes; the most serious form of skin cancer |
| peritonitis | inflammation of the peritoneum, the membrane lining the inner wall of the abdomen and covering the abdominal organs |
| Psoriasis | a common skin disorder that involves redness, irritation, and scales (flaky, silver-white patches) that itch, burn, crack, and sometimes bleed |
Created by:
InshaC
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