are commonly utilized because of its unique patterns among individuals. It is found that what determines the pattern of fingerprint is what occurs in a layer of the skin called the basal layer. The surrounding layers of skin the outer layer the epidermis and inner dermis contribute to this pattern because the basal layer which grows faster than these layers causes this layer to fold creating the skin pattern. Ultimately the pattern will become visible on the surface of the skin however it is hard
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SKIN • Largest and heaviest organ of the body; accounts for about 15% of the total body weight • Also called as cutaneous membrane • Skin contains two layers‚ the epidermis and the dermis. • The hypodermis is the layer underneath the skin. FUNCTIONS • Skin is a protective covering that prevents harmful substances from entering the body. • It helps regulate body temperature and water loss. • It houses sensory receptors and contains immune system cells. • It synthesizes chemicals and excretes
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integumentary system is the skin and its derivatives; it provides external protection for the body. Its characteristics are: covers the entire body‚ accounts for about 7% of total body weight‚ pliable‚ yet durable‚ thickness: 1.5 to 4.0 mm‚ composed of the epidermis and dermis. 2. Describe and give at least one example of each of the functions of the integumentary system. Protection – 3 different barriers: Chemical Barriers (skin secretion and melanin) Physical/Mechanical Barriers – continuity of the skin
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It consists of loose connective tissue otherwise called areolar connective tissue - collagen‚ elastin and reticular fibres are present. Erector muscles‚ attached between the hair papilla and epidermis‚ can contract‚ resulting in the hair fibre pulled upright and consequentially goose bumps. The main cell types are fibroblasts‚ adipocytes (fat storage) and macrophages. Sebaceous glands are exocrine glands which produce sebum‚ a mixture of lipids
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squamous epithelium in the epidermis‚ areolar connective tissue‚ and some dense irregular connective tissue in the dermis have been afllicted 3. What type of burn has the student received? Explain. · He has received burns in the 2nd degree which are accompanied by blisters and pain. 4. What type of radiation has caused the burn? · Ultraviloet radition (UVA) specifically UBA and UBV. 5. List ALL the layers of the skin that have been damaged? · Epidermis: stratum corneum‚ stratum
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Case Study #2 1. Epidermis: Is the top layer of the skin. It is made up of stratified squamous cells called keratinized cells. The top layer is dead keratinocyte. Dermis: Is the middle layer of skin. This is where skin gets its color. Melanin‚ hemoglobin‚ and carotene are located here. Also many glands are in the dermis such as sweat glands‚ oil glands‚ hair/hair follicles‚ nails. Hypodermis: is the bottom layer of the skin. It contains adipose tissue‚ fat‚ and blood vessels.
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INTEGUMENTARY SYSTEM The integumentary system consists of the skin and accessory structures‚ such as hair‚ nails‚ sudorifenous gland (sweat gland) and sebaceous gland (oil gland). Integument means covering‚ and the integumentary system is familiar to most people because it covers the outside of the body and is easily observed. FUNCTIONS OF THE INTEGUMENTARY SYSTEM 1. Protection The skin provides protection against abrasion and ultraviolet light. It prevents the entry of microorganisms
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1.Name the tissue types composing the epidermis and dermis. List the major layers of each and describe the functions of each layer. The epidermis is composed of keratinized stratified squamous epithelium tissue. The cells are specifically keratinocytes‚ melanocytes‚ Merkel cells‚ and Langerhans’ cells. The layers of the epidermis are the basal layer (stratum basale)‚ it is the deepest layer and is attached to the dermis‚ the cells are actively mitotic. The next layer is the prickly layer (stratum
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Integumentary comprise of structure and functions of our skin. The structure of our skin consists of two layers epidermis and dermis. The normal function of the epidermis being the outer portion‚ which in itself is also divided into thin layers called the Strata‚ is for protection of the body. It is also composed entirely of epithelial cells and contains no blood vessels. (COHEN. 2013‚ p.112) The epidermis is constantly lost with wear and tear because of its lack of blood vessels‚ so it has to get nourished
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glands • skin is the most vulnerable organ • skin is the most vulnerable organ – exposed to radiation‚ trauma‚ infection‚ and injurious chemicals • body’s largest and heaviest organ Skin and Subcutaneous Tissue • consists of two layers: – epidermis – stratified squamous epithelium – dermis – connective tissue layer – hypodermis • another connective tissue layer below the dermis • not part of the skin • contains fat tissue (for insulation)‚ blood vessels and nerves • thick skin – on
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