Match the hair structure with its description. Protrudes above the surface of the skin Central axis of the hair Portion of the dermis that surrounds the epithelial root sheath Contains the hair; consists of epithelial and dermal root sheaths Expanded knob at the base of the hair root The portion of the hair that is below the surface of the skin Forms the bulk of the hair; consists of cells containing hard keratin Outer layer of the hair; single layer of cells containing hard keratin Mass of epithelial cells within the bulb that produce the hair
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Column A: a. Apocrine sweat gland b. Arrector pili muscle c. Dermis d. Epidermis e. Hair follicle f. Keratin g. Lunula h. Melanin i. Merocrine sweat gland j. Sebaceous gland k. Stratum basale l. Stratum corneum Column B: 1. Portion of nail body near the cuticle 2. Superficial layer of epidermis 3. Become active after puberty in axillary and groin regions 4. Epidermal pigment 5. Deepest layer of skin 6. Responds to elevated body temperature 7. General name of entire superficial layer of the skin 8. Gland that secretes an oily mixture called sebum 9. Tough protein of nails and hair 10. Cell division and deepest layer of epidermis 11. Tubelike part that contains the root of the hair 12. Causes hair to stand on end and goose bumps to appear
Adi S.
The epithelial. tissue root sheath is the ________ layer of the concentric layers making up the hair follicle wall ; it derived from the _______
7. List the sensory receptors found in the dermis of the skin. Accessory Organs of the Skin 8. Match the key choices with the appropriate descriptions. Some terms are used more than once. Key: a. arrector pili b. cutaneous receptors c. hair d. hair follicle e. nail f. sebaceous gland g. sweat gland - apocrine h. sweat gland - eccrine 1. Tiny muscles, attached to hair follicles, that pull the hair upright during fright or cold. 2. Sweat gland with a role in temperature control. 3. Sheath formed of both epithelial and connective tissues. 4. Primarily dead/keratinized cells (two responses from key). 5. Specialized nerve endings that respond to temperature, touch, etc. 6. Secretes a lubricant for hair and skin. 9. Describe two integumentary system mechanisms that help regulate body temperature.
Madhur L.
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