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BodySys1 - Integumen

Medical Terminology

TermDefinition
integumentary system system of the body that consists of the skin and skin components such as nails and hair
cells basic structural and functional units of life in the human body
tissue group of many cells performing the same function
organs groups of tissue that carry out important functions in the body
blood vessels tubes that carry blood and nutrients throughout the body
immune cells maintain the body’s defense against foreign and infectious material
liquid drug that has no solid shape
Langerhans cells specialized cells that are vital to immune response
nerve cells responsible for sensing external changes in the environment, such as temperature changes
fat cells responsible for storing fats in the body
blood cells contribute to the formation of blood, including red and white blood cells
keratin type of protein used by the body to form tough tissues such as skin
keratinocytes specialized skin cells that produce keratin
collagen protein found in the skin that provides firmness and strength
elastin protein found in the skin that provides elasticity
elasticity ability of the skin to stretch, expand, and restore its shape
melanocytes specialized skin cells that produce melanin
melanin pigment that gives skin its color
freckles small light or medium brown spots on the skin that show up when melanin is not evenly distributed
moles slightly raised blemishes that occur when there are large clusters of melanocytes
epidermis outermost layer of skin that also contains nails and hair
dermis middle layer of skin; often called the dermal layer
hypodermis innermost layer of skin; often called the hypodermal layer
stratum corneum layer of dead cells that forms the outermost layer of epidermis
stratum lucidum clear layer of dead cells only found in the epidermis of the palms of the hands and feet
stratum granulosum deep epidermal layer of skin that accumulates keratin
stratum spinosum deep epidermal layer of skin that produces keratin
stratum basale deepest epidermal layer, which contains melanocytes, immune cells, and touch receptors
bacteria single-celled organisms that may be harmful or helpful in the body
skin microbiome harmless bacteria that live on the surface of the skin and may provide health benefits
sweat glands structures in the skin that release sweat
cholesterol waxy substance needed for hormone production and for growing cells
hormones chemicals produced by cells that serve as messages, affecting the function of other cells
vitamins compounds essential for human growth
homeostasis process of maintaining a stable physiologic environment, such as temperature
homeostatic imbalance failure to maintain a stable internal environment
pH a measure of how acidic or basic a substance is
infection presence and multiplication of harmful foreign microorganisms, or pathogens, in the body
warts irregular skin growths that are caused by the human papillomavirus (HPV)
thermoregulation process of achieving a normal and stable body temperature
hyperthermia condition in which the body becomes overheated
hypothermia condition in which the body temperature drops to dangerously low levels
vasodilation the enlarging of blood vessels to increase internal heat loss, thereby cooling the body
vasoconstriction the process of constricting, or reducing the size of, the blood vessels to heat the body
Created by: rleroux