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TEAS-Science

Integumentary

QuestionAnswer
The outer layer of skin is the "BLANK" It consists of "BLANK" Epidermis, keratinized stratified squamous epithelial tissue.
Cells migrate from the "BLANK" region to the exterior surface of the epidermis as they age. During this time, they become more flattened, slough off, and are replaced by younger Celis. Deeper
"BLANK" the tubes from which hair grows Hair follicles
middle layer of the skin called the Dermis.
The histology of the dermis is "BLANK" rather than epithelial tissue. Connective tissue
Typical of these two kinds of tissues, the epidermis is "BLANK" (lacks blood vessels) Avascular
The "BLANK" contains capillaries and small blood vessels. Dermis
Another name for the dermis is the Cutaneous layer.
The term "BLANK" or "BLANK" is used to refer to the deepest layer of the skin Hypodermis or Subcutaneous layer
The two major types of hypodermis tissue are both of the loose connective category: Areolar and Adipose tissue.
The hypodermis is highly "BLANK" Vascular
Below the hypodermis is the "BLANK" Muscle layer.
One structure, hair, is generated by "BLANK" at the base of the hair follicles. Epithelial cells
Hair acquires oil from the "BLANK" that surround hair follicles. Sebaceous glands
Oil from the sebaceous gland is technically known as "BLANK" and it moisturizes both hair and skin, keeping the keratin flexible and water-resistant. Sebum
Sebum is also produced by "BLANK" , accessory structures only found in the dermis of the external ear canal. Ceruminous glands
Sebum from ceruminous glands combines with dead epithelial cells to form "BLANK" , more commonly known as ear wax. Cerumen
"BLANK" sweat gland is also associated with the hair follicle. Apocrine
The secretion from apocrine these sweat glands, also referred to as "BLANK" has an odor that may act as a sex pheromone in humans. As scent glands,
Apocrine sweat has a higher concentration of "BLANK" than other sweat. Fatty acids
Eccrine sweat glands are also known as Merocrine sweat glands
Eccrine sweat glands deliver their secretions directly to the of the epidermis. External surface
The main role of eccrine sweat is Thermoregulation.
In contrast to apocrine sweat glands, eccrine sweat glands are found throughout the "BLANK" of the human body. Dermis
The integumentary system uses two primary means for thermoregulation: Perspiration and Diameter changes of blood vessels.
There are temperature sensors (thermoreceptors) in both the Hypothalamus and Skin.
When the hypothalamus perceives that body temperature is too high, it stimulates Cutaneous vasodilation.
During "BLANK" there is an increase in blood vessel diameter in the skin, this allows more blood to flow near the surface of the body, so that body heat carried by the blood is transferred to the external environment Cutaneous vasodilation.
If cutaneous vasodilation is not sufficient to lower body temperature into a homeostatic range, the hypothalamus stimulates Sweat production.
As the perspiration on the surface of the skin dries, it lowers body temperature through Evaporation cooling.
"BLANK" is a response caused by the hypothalamus when the body is below its hemostatic temperature. Shivering
Within the skin, "BLANK" tense with chilling temperatures and cause hair to bristle Arrector pili muscles
A more effective means of retaining heat is triggered when the hypothalamus causes "BLANK" in the skin. Vasoconstriction
"BLANK" reduces the amount of blood traveling close to the surface of the body, thus decreasing heat loss through the skin. Cutaneous vasoconstriction
"BLANK" is the external aspect of the innate immune system Integumentary system
The epidermal water barrier maintained by sebum and "BLANK" , a tough protein made by epithelial keratinocytes, helps to prevent the body from dehydration. Keratin
"BLANK" and "BLANK" in sebum and sweat encourage a low pH that inhibits growth of bacteria. sweat also contains antibacterial substances. Lactic and fatty acids
The integumentary system protects the body is by serving as a large surface area for excretion of waste materials such as Mineral salts and Urea
The skin makes "BLANK" by absorbing ultraviolet radiation from the sun and using it to convert a cholesterol-based precursor into "BLANK" . vitamin D
One critical function of vitamin D is to help the Intestine absorb dietary calcium.
To become narrower Constrict
The middle layer of skin Dermis
The outer layer of the skin Epidermis
Elimination of metabolic waste from the body Excretion
An organ that secretes a substance Gland
An organ system comprised of skin and its associated organs Integumentary system
The thin layer of tissue that covers the body Skin
Under the dermis Subcutaneous
Perspiration excreted by sweat glands through the skin Sweat
Created by: bonitasoul