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Apr 24, 2023 · The skin appendages are epidermal and dermal-derived components of the skin that include hair, nails, sweat glands, and sebaceous glands. Each component has a unique structure, function, and histology. This article describes the unique characteristics of each of these components and provides insight into tissue preparation for microscopic evaluation and the clinical significance of these ...
- Hani Yousef, Julia H. Miao, Mandy Alhajj, Talel Badri
- 2023/04/24
- 2020
This process called photosynthesis. Almost all life on Earth depends upon this process. Image source, BBC. These are the things that plants need for photosynthesis: carbon dioxide; water;
- Skin Appendages Function
- Hair
- Nail
- Sebaceous Glands
- Sweat Glands
Skin appendages are structures embedded within or projecting from the skin that perform various important functions. They play an important role in keeping our skin healthy and functioning properly. These include: 1. Hair: Hair helps to insulate the body, protects the scalp from sunlight, and provides sensory input. It also traps sweat and dirt, he...
Hairs are horny threads varying in length, thickness, color, and distribution according to the race, sex, and site of skin.
Nails are horny plates present on the dorsal surfaces of the terminal phalanges of fingers and toes, they consist of closely-packed hard keratin scales.
These are simple branched alveolar, holocrine glands that develop from the upper third of the hair follicle; therefore, they are usually present where the hair is present. They are most numerous over the head region and the anogenital area.
They are simple coiled tubular glands, they are found deep in the dermis or the hypodermis, there are two types of sweat glands; the eccrine and the apocrine glands.
Jul 31, 2023 · The skin contains several glands, hair, nails and nerve endings that allow it to function optimally. This article will discuss the embryology, gross anatomical and histological features of the appendages of the skin. Additionally, pathologies that affect the appendages and their consequences will also be discussed.
The carbon dioxide required for photosynthesis comes from the air. It enters leaves through the stomata close stomata Tiny holes in the epidermis (skin) of a leaf. They control gas exchange by ...
Two major types of glands are found in the skin: Sebaceous glands and Sweat glands. Sebaceous Glands These glands are the smallest of skin glands and are found associated with the upper portion of the hair follicle and produce a substance called sebum. Sebum is a white, oily substance with a high lipid content.
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Jul 30, 2017 · Photosynthesis Equation. 6 CO 2 + 6 H 2 O + Light -> C 6 H 12 O 6 + 6 O 2 + 6 H 2 O. Above is the overall reaction for photosynthesis. Using the energy from light and the hydrogens and electrons from water, the plant combines the carbons found in carbon dioxide into more complex molecules. While a 3-carbon molecule is the direct result of ...
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