Integumentary System

Part 1: Skin Functions List 5 general functions of the skin Part 2: Types of Glands Sort the information under the correct gland category Sweat Gland Cools down the body Releases sweat Secretes at puberty Two types: eccrine apocrine Sebaceous Gland Located by hair follicle Releases sebum (oil) Waterproofs skin Helps destroy bacteria on skin's surface Part 3: Layer the parts of the epidermis Word bank: stratum granulosum, stratum corneum, stratum lucidum, stratum spinosum, stratum basale, melanocyte stratum corneum stratum lucidum stratum granulosum stratum spinosum stratum basale melanocyte Part 4: Label the skin Diagram Use the following words to label the skin diagram:hair shaft, dermal papillae, pore, blood vessels, arrector pili, sweat gland, hair follicle, sebaceous gland, hair root, adipose, nervous receptor, epidermis (left side of model), hypodermis (left side of model), dermis (left side of model), dermal papillae hair shaft pore blood vessels arrector pili sweat gland hair root sebaceous gland hair follicle adipose nervous receptor epidermis dermis hypodermis Part 5: Term Matching Part 1 Identify the function of each part listed and match it up Langerhans Cells Destroy Foreign Invaders Melanocytes Produce melanin, providing skin color and UV protection from the sun Thermoreceptor Nervous receptor for temperature Meissner's Corpuscle Nervous receptor for touch Part 6: Term Matching Part 2 Identify the function of each part listed and match it up Nociceptor Nervous Receptor that senses pain Pacinian Corpuscle Nervous Receptor that senses pressure Apocrine Gland Next to hair follicle that secretes during puberty Eccrine Gland Opens on the skin to cool the body Part 7: Skin Layer Match Up Place the correct facts into the right skin category. Stratum Corneum Oldest layer of skin Made of flat dead skin cells Layer is keratinized and waterproof Stratum Lucidum Only found in the soles of the foot and the palms of the hands Provides protection from constant friction Found under the stratum corneum (in hands Stratum Granulosum Acts as a barrier Flattened, tightly sealed cells containing more keratin Located below the stratum lucidum (assuming it is present) Stratum Spinosum cells are reproduced by mitosis spiny in appearance due to keratin filaments Located below the stratum granulosum Stratum Basale constantly undergoing mitosis Youngest skin layer Located under the stratum spinosum Contain Langerhans cells, melanocytes, free nerve endings Dermis Located under the epidermis Made of dense connective tissue Hypodermis Located below the dermis Includes blood vessels and fat Made of loose connective tissue Epidermis Outer layer Of the 3 major skin segments this is the thinnest Made of stratified squamous