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Catherine Dela Cruz, Period 2 Integumentary - Coggle Diagram
Catherine Dela Cruz, Period 2 Integumentary
major functions of skin
protection
The skin functions as the first line of defense against toxins, radiation, and harmful pollutants. The skin contains cells that provide immune functions to protect against infections. the skin has the ability to identify and destroy foreign substances that may potentially be harmful to the body. For added skin protection
excretion
The skin is the body’s largest waste removal system. Toxins are released through the sweat glands and pores.
absoption
Thousands of pores on the surface of the skin can absorb vitamins, acids, water and oxygen in order to provide moisture and nourishment to our skin.
secretion
The skin secretes sebum, a mixture of oils that keeps the skin soft and supple. The layer of sebum on the outermost layer of the skin is known as the acid mantle.
regulation
The skin regulates the body’s temperature by sweating; when water from sweat on the skin evaporates it gives off heat and cools the body. The body’s temperature increases or by shivering or getting goosebumps when the body is cold. The contraction of muscles releases energy that warms the body.
sensation
The skin contains millions of nerve endings that transport stimuli. These nerve endings allow humans to detect sensation such as heat, cold, pain and pressure.
layers of skin
dermis
The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.
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epidermis
The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.
accessory organs
nails
nails
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The cuticle: The thin line of tissue that is located at the base of the nail and overlaps the nail plate.
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The matrix: Part of the nail that is not visible, located underneath the cuticle, this is the area responsible for the growth of the fingernail.
glands
glands
Sudoriferous glands: Sweat glands that are hollow, cylindrical structures under the skin; they excrete sweat via very small openings at the skin’s surface. The purpose of sudoriferous glands is to emit perspiration to help cool the body off when the body temperature rises.
Sebaceous glands: Very small tubular-shaped glands, located in the dermis, which are responsible for releasing oil into the hair follicle to help lubricate and protect the hair shaft, keeping it from becoming hard and brittle.
Ceruminous glands: Located in the ear canal, ceruminous glands function along with sebaceous glands to produce ear wax. Cerumen is important in its role as a protective mechanism, keeping foreign invaders at bay and guarding the ear against any type of physical damage.
Mammary glands: There are two mammary glands located one at each side of the front of the chest wall. Both men and women have mammary glands, but in men, these glands are underdeveloped. In females, the glands function to produce breast milk after giving birth. The mammary glands are semicircular in shape in young females, but later the glands begin to lose their shape.
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Degrees of Burn
first-degree burns: red, nonblistered skin.
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third-degree burns: widespread thickness with a white, leathery appearance.