Stack #158509
| Question | Answer |
|---|---|
| a blackhead is an accumulation of oily material produced by what | sebaceous gland |
| tiny muscles attached to the hair follicles that pull the hair upright during fright or cold | arrector pilli |
| the most numerous variety of perspiration gland | sweat gland eccecrin |
what is a blackhead quizlet?
Subsequently, one may also ask, what is a blackhead quizlet?a blackhead is an accumulation of oily material produced by ___ arrector pilli. tiny muscles attached to hair follicles that pull the hair upright during fright or cold. eccrine sweat glands. the most numerous variety of perspiration glands.
what are the accessory organs of the skin?
The accessory organs of the skin include the hair, nails, sebaceous glands, and sweat glands.
what secretes a lubricant for hair and skin?
A sebaceous gland is a microscopic exocrine gland in the skin that opens into a hair follicle to secrete an oily or waxy matter, called sebum, which lubricates the hair and skin of mammals.
What are primarily dead Keratinized cells called?
Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Strands of hair originate in an epidermal penetration of the dermis called the hair follicle.
What are Arrector Pili what do they do?
The arrector pili muscles are small muscles attached to hair follicles in mammals. Contraction of these muscles causes the hairs to stand on end, known colloquially as goose bumps. Pressure exerted by the muscle may cause sebum to be forced along the hair follicle towards the surface, protecting the hair. You may also read,
What is the common name for Eponychium?
In human anatomy, the eponychium, or cuticle, is the thickened layer of skin surrounding fingernails and toenails. It can also be called the medial or proximal nail fold. Check the answer of
Why does the Lunula appear whiter than the rest?
Why does the lunula appear whiter than the rest of the nail? So thick the blood supply is not shown. -Their products are an oily mixture of lipids, cholesterol, and cell fragments. -these glands are found everywhere on the body except the palms of the hands and soles of the feet.
What provides a natural sunscreen?
Sunscreens labeled natural are typically mineral-based, containing active ingredients like titanium dioxide and zinc oxide that physically deflect or scatter the sun’s UV rays. Read:
What is the most abundant protein in dead epidermal structures?
The most abundant protein in dead epidermal structures such as hair and nails is melanin. 21. Sebum is an oily mixture of lipids, cholesterol and cell fragments.
What is delayed action Gene?
delayed action gene. cause of graying hair. milia. small white bumps on the skin of newborn babies, resulting from accumulations of sebaceous gland material.
Why do we become tanned after sitting in the sun?
Sit out in the sun too long and ultraviolet radiation from sunlight penetrates your skin and cells, damaging their RNA and DNA. To protect you from this, your body helpfully tans, darkening the the skin with a pigment called melanin that reduces UV penetration into cells.
What secretion contains bacteria killing substances?
Secretin
Which body areas are most sensitive to touch?
For light touch, the neck, forearm, and vaginal margin are the most sensitive areas, and the areola is the least sensitive. When it comes to pressure, the clitoris and nipple are the most sensitive, and the side boob and abdomen are the least.
What substance is manufactured in the skin to play a role in calcium absorption?
Keratinocytes also regulate calcium absorption by the activation of cholesterol precursors by UVB light to form vitamin D. Melanocytes are derived from neural crest cells and primarily produce melanin, which is responsible for the pigment of the skin. They are found between cells of stratum basale and produce melanin.
