Hyaluronic Acid Overview

Hyaluronic acid hydrates dry skin and reduces fine lines and wrinkles.

Hyaluronic acid, also known as Hyaluronan, is a viscous fluid carbohydrate found in connective tissue, synovial fluid, and the humors of the eye.

The amount of hyaluronic acid decreases with aging, leading to fine lines, wrinkles, and sagging skin.

<p>Hyaluronic acid is injected into joints to treat osteoarthritis.</p> Signup and view all the answers

<p>Hyaluronic acid helps retain over 1000 times its weight in water within the cells of the skin.</p> Signup and view all the answers

<p>Side effects can include pain and redness at the injection site, increased eye pressure, and allergic reactions.</p> Signup and view all the answers

<p>Glands in the integumentary system secrete substances such as sweat and oils that help in temperature regulation and protection.</p> Signup and view all the answers

<p>Sebaceous glands produce sebum, an oily substance that moisturizes the skin and provides a barrier against bacteria.</p> Signup and view all the answers

<p>Sweat glands help regulate body temperature by producing sweat, which cools the body as it evaporates.</p> Signup and view all the answers

<p>Apocrine glands secrete a thicker fluid primarily associated with body odor, while eccrine glands secrete a more watery sweat for temperature regulation.</p> Signup and view all the answers

<p>Ceruminous glands produce earwax, which helps protect the ear canal from dust, pathogens, and water.</p> Signup and view all the answers

<p>The integumentary system aids in chemical synthesis by producing vitamin D when exposed to sunlight, which is essential for calcium metabolism.</p> Signup and view all the answers

<p>The increase is due to the activity of male and female hormones during puberty.</p> Signup and view all the answers

<p>White pimples are formed by the accumulation of sebum in the ducts, while blackheads occur when the sebum darkens.</p> Signup and view all the answers

<p>The primary function of ceruminous glands is to produce earwax.</p> Signup and view all the answers

<p>Earwax is a combination of secretions from ceruminous glands and sebaceous glands.</p> Signup and view all the answers

<p>The nail matrix is the area where nail cells multiply, and it's important because it generates new cells.</p> Signup and view all the answers

<p>Nails protect the ends of digits from trauma and assist in grasping and manipulating objects.</p> Signup and view all the answers

<p>Once at the surface, nail cells lose the ability to multiply and become dead cells.</p> Signup and view all the answers

<p>Acne is a common skin imbalance related to the inflammation of sebaceous gland ducts.</p> Signup and view all the answers

<p>The two main types of sweat glands are eccrine and apocrine. Eccrine glands secrete cooling sweat directly onto the skin for temperature regulation, while apocrine glands are activated during emotional stress and secrete into hair follicles.</p> Signup and view all the answers

<p>Eccrine sweat is composed of 98% water and 2% dissolved salts and nitrogenous wastes such as urea. It helps regulate body temperature and aids in waste removal.</p> Signup and view all the answers

<p>Eccrine sweat glands begin to function soon after birth.</p> Signup and view all the answers

<p>Apocrine sweat glands are stimulated during emotional stress and excitement, starting to function at puberty.</p> Signup and view all the answers

<p>Sebum is composed of fats, cholesterol, proteins, inorganic salts, and pheromones. It lubricates hair and skin, prevents excessive water evaporation, and keeps skin soft.</p> Signup and view all the answers

<p>Sebaceous glands are embedded in the dermis over most of the body and are mostly connected to hair follicles.</p> Signup and view all the answers

<p>Sweat glands, particularly eccrine glands, contribute to temperature regulation by secreting sweat which cools the body through evaporation.</p> Signup and view all the answers

<p>Apocrine sweat contains lipids and proteins, making it slightly more viscous than eccrine sweat, which primarily consists of water and salts.</p> Signup and view all the answers