Skin and the integumentary system

Outer root sheath Glassy membrane basement membrane of hair follicle You can image these layers as tree rings in a cross-section of the hair follicle since they are concentric cylinders. Each layer completely encloses the previous one situated more internally. Hair cycle and growth The growth, rest and shedding of hair follicles occurs in cyclical stages of variable duration. During the growing anagen phase, the follicles produce an entire hair shaft from the dividing cells of the hair bulb.

Skin and the integumentary system

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The largest organ of the body that covers the entire body The epidermis: The outermost layer of the skin that contains keratin and squamous epithelial cells The dermis: The middle layer of the skin which gives the skin its elasticity and its ability to stretch The hypodermis: The deepest layer of the skin, also referred to as the subcutaneous layer, stores fat Subcutaneous level: An alternative name for the hypodermis which is the deepest layer of the skin Thermoregulation: The regulation of the bodily temperature Tactile sense: One of the 5 senses of the body that is the sense of touch Hair: The fine and thick follicles that cover the vast majority of the human bodily surface Finger and toe nails: These integumentary system structures protect the tips of the fingers and the toes.

The hard, strong and somewhat bendable surface of the nail and the part of the nail that is made of keratin. Dead skin cells that are pushed over the peripheries of the nails at their base and around the edges.

The base of the nail under the skin where the new nail tissue emerges from Nail matrix: The tissue below the surface of the nail that is protected by its nail plate. The skin that has three layers like other skin and is found below the entire nail plate Lunula: The half-moon luna white area at the base of the nail.

Exocrine glands that lubricate and moisturize the skin with an oily secretion which is called sebum Sweat glands: As eccrine glands, sweat glands are found across the body and they secrete a substance that cools the body off with perspiration and they also eliminate some bodily wastes.

Also referred to as acne vulgaris, this is clogging of skin pores with dead skin and skin oils Rash: An often itchy irregular reddened area on the skin that can occur from a number of different causes Yeast infections: Also referred to as tinea pedis footit is a fungal infection of the skin most often found on the feet Pressure ulcer: Skin breakdown as the result of prolonged bed rest Sunburn: Burning of the skin as the result of exposure to the sun Skin cancer: Cancer occurring on one or more areas of the skin Albinism: Defective melanin that causes an abnormal coloration of the skin and hair Herpes: A viral infection Herpes labialis: Also called cold sores, is a viral infection that typically affects the lips Impetigo: A contagious skin condition that appears as a rash on the skin Psoriasis: Thick skin on the skin surface as the result of an abnormal buildup of cells on the skin surface Rosacea: A skin disorder that causes redness and skin break outs The Role of the Integumentary System The integumentary system consists of the skin, hair finger nails and toe nails and other structures including glands.

Unlike the other bodily systems throughout the body, the integumentary system is not localized to one area or region of the body; instead the integumentary system covers the entire body. The skin is by far the largest and most vast organ of the entire body.

5: The Integumentary System (Skin)

The integumentary system plays several roles in the body including:The integumentary system consists of the hair, skin, nails, and exocrine glands. Your skin protects you from harmful elements in the environment, and it can be adversely affected by toxins, artificial fragrances, pollution, and other irritants.

The integumentary system consists of the largest organ in the body: the skin. This extraordinary organ system protects the internal structures of the body from damage, prevents dehydration, stores fat, and produces vitamins and hormones. The integumentary system comprises the skin and its appendages acting to protect the body from various kinds of damage, such as loss of water or damages from outside.

The integumentary system includes hair, scales, feathers, hooves, and nails. The integumentary system consists of the skin, hair, nails, glands, and nerves. Its main function is to act as a barrier to protect the body from the outside world.

Skin and the integumentary system

It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature. In order to. Mar 10,  · In this video Paul Andersen details the important structures and functions of the integumentary system.

The integumentary system includes the skin, hair and. Broadly speaking, the integumentary system is composed of skin and its appendages, subcutaneous tissue, deep fascia, mucocutaneous junctions, and breasts.

This article will discuss all of these components in detail together with some clinical notes about them and the integumentary system .

Integumentary System - Science NetLinks