Chapter 5 Integumentary System.

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Presentation transcript:

Chapter 5 Integumentary System

Functions Chemical barrier Physical barrier Biological barrier Body temperature regulation Sensation Metabolism (vitamin D) Blood reservoir Excretion

Epidermal Cells Melanin & carotene pheomelanin (red) and eumelanin (very dark brown).

Layers of the Epidermis

Parts of the Dermis Pacinian corpuscles – pressure Meissener’s corpuscle - touch Hair follicles Sweat glands Blood vessels Arrector pili muscles Dermal Papillae (tactile corpuscle)

Imbalances Erythema Pallor or blanching Jaundice Bronzing (Addison’s disease) Hematomas Cyanosis

Hair Vellus (fine) hair and terminal hair

Glands Sudoriferous (Sweat) Eccrine sweat glands: function throughout life. Apocrine: located in the axilla, groin, areolae, and beard areas. Begin functions at puberty. Ceruminous glands – wax in the ears. Mammary glands = milk Sebaceous glands = oil (sebum)

Fingernails

Epidermal wound healing

Deep wound healing

Skin cancers

Types of Skin Cancers Malignant Melanoma Basal Cell Carcinoma Squamous Cell Carcinoma

Burn chart

Words to Know Albinism Hemangioma Impetigo Laceration Nevus Pruritis Psoriasis Wart Vitiligo

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