SKIN By Annette Miles Skin plays several important

SKIN By: Annette Miles

Skin plays several important roles for our bodies. regulate body 1. Skin helps to ____ temperature. protects inner tissue. 2. Skin ____ D 3. Skin produces vitamin ___. pain and touch. 4. Skin senses _____ 5. Skin helps get rid of _______ waste products.

Skin has two main layers: The _____ dermis epidermis and the _____.

5 distinct The epidermis has ___ layers. The deepest layer is where made the new cells are _____. The top dead skin. layer is composed of _____ These cells are continually being shed.

Cross section of the epidermis

Color the epidermis tan and label.

The pigment that determines skin melanin The and hair color is ____. pigment is found in a single layer of epidermal cells. The cells that produce melanin are the melanocytes ______.

Color the melanocyte black and label.

The layer of skin just beneath dermis the epidermis is the _______. The dermis contains blood vessels, nerves, hair follicles, sweat glands, and sebaceous glands.

Color the dermis pink and label.

sebaceous glands are a The _______ small, sack-shaped gland that oily (fatty) liquids release _____ onto the hair follicle (the oil softens the skin). They are usually located beside a hair follicle _____.

Color the sebaceous glands red and label.

Sweat glands are a tubeshaped gland in the dermis sweat Sweat that produce _______. is a liquid that includes small ammonia amounts of _____, electrolytes urea and ______,

Sweat does more than just remove waste. It also helps keep the body from overheating The body can ______. get rid of extra heat through evaporation ______.

Color the sweat gland green and label.

hair follicle is a tube. The ______ shaped sheath that surrounds the part of the hair that is under the skin. The hair is nourished by the follicle at its base. This is also where the hair grows.

Color the hair follicle blue and label.

The ______ hair shaft is the part of the hair that is above the skin.

Color the hair and hair shaft gray and label.

pacinian corpuscle are The ________ nerve receptors that respond to pressure and vibration; they are oval capsules of sensory nerve fibers located in the subcutaneous fatty tissue.

Color the pacinian corpuscle purple and label.

erector muscle is a The hair _______ muscle that is connected to each hair follicle and the skin. It contracts in response to cold and fear resulting in an erect goosebump on hair and a “_____” the skin.

Color the erector muscle orange and label.

blood vessels are tubes The ______ that carry blood. Arteries bring from the oxygenated blood ______ heart and lungs. Veins return oxygen depleted blood back to the heart and lungs.

Color the blood vessel red and label.

The ______ subcutaneous tissue _____ is the fatty tissue located under the dermis.

Color the subcutaneous tissue brown and label.

Review: Guess the following parts of the skin.

RESOURCES http: //images. google. com/imgres? imgurl=http: //www. ratbehavior. org/images/Epidermis. jpg&imgrefurl =http: //www. ratbehavior. org/Coat. Types. htm&usg=__Vkv. UF 9 O 4 ifm 6 Sy_BYqk. J 73 Qfixc=&h=372&w=516& sz=60&hl=en&start=5&itbs=1&tbnid=KD 3 j. Kd. Wqfbpi. BM: &tbnh=94&tbnw=131&prev=/images%3 Fq%3 Dep idermis%26 hl%3 Den%26 sa%3 DG%26 gbv%3 D 2%26 tbs%3 Disch: 1 http: //z. about. com/d/dermatology/1/0/e/4/Epidermis_Full_lucid. jpg http: //www. riversideonline. com/source/images/image_popup/sn 7_skinlayers. jpg http: //www. clearskinacne. com/wp-content/uploads/skin-epidermis-hair. jpg http: //www. pgbeautygroomingscience. com/assets/images/wosc/Chapter%201/Special%20 S kin%202. jpg http: //missinglink. ucsf. edu/lm/IDS_101_histo_resource/images/172 -1 x. Hair_follicle_labelled. jpg http: //www. riversideonline. com/source/images/image_popup/sn 7_hairfollicle. jpg http: //images. google. com/imgres? imgurl=http: //www. immediart. com/catalog/images/big_images/SPL_E_P 720213 Hair_follicles, _SEMSPL. jpg&imgrefurl=http: //www. immediart. com/catalog/product_info. php%3 Fproducts_id%3 D 288&u sg=__OGcnxzs. Tc. Bk. LTvt. QZLdccj. XV 40=&h=301&w=350&sz=69&hl=en&start=6&itbs=1&tbnid=BZw. QCNRnzu 8 OHM: &tbnh= 103&tbnw=120&prev=/images%3 Fq%3 Dhair%2 Bfollicles%26 hl%3 Den%26 gbv%3 D 2%26 tbs%3 Disch: 1

http: //cas. bellarmine. edu/tietjen/Laboratories/Bio%20 Pix%204%20 U/Image 102. gif http: //www. supertightstuff. com/wp-content/uploads/2009/02/goosebumps. jpg http: //www. dmk-uk. com/images/treatments/skin-diagram-acne. gif http: //myhealth. ucsd. edu/library/healthguide/enus/images/media/medical/hw/h 9991258. jpg http: //www. lib. uiowa. edu/hardin/m. D/pictures 22/dermnet/21_basal_cell_carcinoma_cancer _imiquimod 0822057. jpg http: //science. nationalgeographic. com/staticfiles/NGS/Shared/Static. Files/Science/Images/Co ntent/epidermis-sb 3849 -sw. jpg http: //www. enchantedlearning. com/subjects/anatomy/skin/