Final answer:
Several skin infections are defined, including acne vulgaris, a bacterial rash of hair follicles, and impetigo, a contagious bacterial skin infection. Fungal infections such as dermatomycosis, myc/dermat/itis, onychomycosis, tinea, and trichomycosis are caused by dermatophytes that feed on keratin. Hidradenitis involves inflamed sweat glands, and onychodystrophy refers to abnormal nail growth.
Step-by-step explanation:
Definitions of Various Skin Infections
Acne vulgaris is a bacterial infection of the skin that manifests as a rash of inflamed hair follicles, commonly known as pimples or zits. This condition is often associated with hormonal changes and is prevalent during adolescence.
Dermatomycosis is a fungal infection of the skin caused by dermatophytes, which are fungi that feed on keratin found in skin, hair, and nails. This type of infection typically includes conditions such as athlete's foot and ringworm.
Hidradenitis is the inflammation of sweat glands, which can lead to painful lumps under the skin that can sometimes rupture and leak fluid.
Impetigo is a highly contagious skin infection caused by bacteria, resulting in red sores that can rupture and form a yellow-brown crust.
Myco/dermat/itis, similar to dermatomycosis, refers to an inflammation of the skin caused by a fungal infection.
Mycosis is a general term for any fungal infection, which includes infections that range from superficial, affecting just the epidermis, to systemic, affecting the entire body.
Onychodystrophy refers to a disorder affecting the nails, resulting in abnormal nail growth and appearance.
Onychomycosis is a fungal infection of the nails, which often leads to discoloration, thickening, and crumbling of the nail.
Tinea is a type of fungal infection that affects the skin, nails, or hair and is caused by dermatophytes. It is often specified by the affected body part, such as tinea pedis (athlete's foot) or tinea capitis (scalp ringworm).
Trichomycosis specifically refers to a fungal infection of the hair shafts, usually caused by dermatophytes.