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how many parts is the integument made of two What is the stratum lucidum? unique to thick skin the dermis contains collagen and elastic fibers functions of the skin protection of internal organs and tissues, excretion of water and salts, maintain temperature, synthesizes vitamin d, stores, detect of touch and pain, collagen fibers in the dermis provide strength elastic fibers in the dermis provide stretch recoil properties hair root lower part of the hair, attached to the integument
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how many parts is the integument made of two What is the stratum lucidum? unique to thick skin the dermis contains collagen and elastic fibers functions of the skin protection of internal organs and tissues, excretion of water and salts, maintain temperature, synthesizes vitamin d, stores, detect of touch and pain, collagen fibers in the dermis provide strength elastic fibers in the dermis provide stretch recoil properties hair root
lower part of the hair, attached to the integument hair shaft upper part of the hair, not attached to the integument. it is the part that can be seen arrector pili muscle smooth muscle, causes hair to stand up and produces "goose bumps" sebaceous glands secrete sebum (oil) that lubricates the skin and controls bacteria what are the components of hair arrector pili muscle and sebaceous glands what are the three layers of hair medulla, cortex, cuticle medulla (hair layer) innermost layer cortex (hair layer) middle layer and provides strength, color, and texture cuticle (hair layer) thin outer layer that protects the cortex where does hair production begin at base of the hair hair papilla is fed by the
sebaceous glands, hair, sudoriferous glands, and nails epidermis made of keratinized stratified epithelium dermis origin of exocrine glands hypodermis dominated by adipose tissue in thick skin, the epidermis has five layers of keratinocytes the skin synthesizes vitamin d in response to exposure to the sun keratinocytes the most abundant epidermal cells, the produce fibrous protein melanocytes accounts for variations of hair color and protects the skin from uv damage whats found in the dermis of the skin lymphatic vessels, protein fibers, glands, and nerve endings what accounts for the stretch and recoil properties of the dermis elastic fibers what accounts for the stretch and resilience of the dermis
collagen fibers what are functions of sebaceous glands controlling bacteria, secreting sebum, and lubricating hair what structures are found in hair cuticle, matrix, cortex and papilla growth phase several years transitional phase several weeks resting phase several months cutaneous membrane (skin) epidermis, dermis, hypodermis accessory structures hair, nails, exocrine glands how many components of the integumentary system are there three what are the three components of the integumentary system are there epidermis, dermis, hypodermis epidermis
thick skin truly hairless skin, covers the palms and the soles of the feet, and has five layers of keratinocytes in the epidermis how many strata (layers) does the epidermis of keratinocytes have five what are the five different strata (layers) in the epidermis of keratinocytes have stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum