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integumentary system

voc set

TermDefinition
skin largest organ of the body
accessory organs hair & nails
viscera internal organs anything below the skin
identify 3 layers of the skin epidermis , dermis , hypodermis
the deepest layer of skin ? hypodermis
the thickest layer of skin ? dermis
the outermost layer of the skin ? epidermis
Stratum corneum hard outermost layer of the epidermis produces protein
Stratum basale produces cells in the epidermis
Langerhans cells cells for immunity
Melanocytes makes pigment to give skin color
Keratin the protein in the epidermis that causes hardening of dead skin cells, making skin waterproof
Dermal papillae ridges that cause fingerprints and provide gripping surface
Collagen & elastic fibers stretching & movement
Loose connective tissue Helps to store energy, insulate body, and provides protective padding
Adipose tissue Helps to store energy, insulate body, and provides protective padding
Identify the 5 functions of the skin protection , regulates water loss , produce vitamin D ,Gathers Sensory Information , regulates body temperature
Keratinization the dead skin outer layer also prevents water from entering or leaving the skin
What is the purpose of vitamin D? helps regulate the uptake of calcium by the digestive system
What is the purpose of receptors? Receptors are for sensing : Touch, Pressure, Pain , temperature
Normal body temperature? 98.6
What are the signs of a hot body? Sweat , Dilation of dermal blood vessels
What are the signs of a cold body? shivering , goosebumps
Hypothermia Lower body temp. than normal
Hyperthermia Higher body temp. than normal results in dehydration
Created by: Dearia clark
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