Related Concept Videos

Skin Health01:23

Skin Health

Skin HealthSkin does way more than just cover your body, it’s like your body’s superhero suit. It protects you from germs, keeps water inside your body, helps control your temperature, and lets you feel the world around you. When your skin is healthy, it can heal cuts faster, stay soft and smooth, and protect you better. But too much sun, not enough water, or even stress can affect your skin. Learning how to take care of your skin helps you stay healthy, feel good, and avoid problems like...
Body Water Content and Fluid Compartments01:19

Body Water Content and Fluid Compartments

Life's biochemical processes occur within aqueous solutions. Solutes are substances that are dissolved within these solutions. The human body contains a variety of solutes, which can differ across various body parts. These can encompass proteins—such as those responsible for clotting and carbohydrate transport—as well as electrolytes. In medicine, an electrolyte is often described as a mineral ion derived from a salt possessing an electric charge. Examples include sodium ions...
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Disorder of Water Balance01:29

Disorder of Water Balance

Water balance disorders are medical conditions that occur when there is a deviation from the body's water volume or osmolarity, disrupting normal homeostasis and leading todehydration, hypotonic hydration, hyperhydration, edema, or water intoxication.
Dehydration
Dehydration occurs when the body loses fluids (particularly water).
Causes:
The major causes of dehydration include excessive sweating, fever, vomiting, diarrhea, and diuresis.
Signs and Symptoms:
Symptoms primarily include intense...
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Structure of Skin01:11

Structure of Skin

Structure of SkinThe skin is the body’s largest organ and does much more than just cover us up; it helps protect everything inside. Skin is made of two layers and can heal itself when it’s hurt. The epidermis is the outermost layer and acts as the body’s first line of defense. It’s made mostly of dead skin cells that are constantly shed and replaced. This layer contains melanin, the pigment that gives skin its color and protects against harmful UV rays. Beneath the epidermis is the...
Accessory Structures of the Skin: Sebaceous Glands01:21

Accessory Structures of the Skin: Sebaceous Glands

A sebaceous gland is a type of oil gland found almost all over the skin ( except palms and soles) and helps lubricate and waterproof the skin and hair. Most sebaceous glands are associated with hair follicles. They generate and excrete sebum, a mixture of lipids, onto the skin surface, thereby naturally lubricating the dry and dead layer of keratinized cells of the stratum corneum, keeping it pliable.
These glands that produce the oils on the skin and hair are holocrine glands. The mature...
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Skin Diseases and Disorders01:23

Skin Diseases and Disorders

Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
Gram-positive Staphylococcus spp. and Streptococcus spp. are responsible for many of the most common skin infections. However, many...
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