Integumentary System Flashcards
What are the 4 main functions of the integumentary system?
acts as a two-way protective barrier
regulates temperature
houses nerve receptors
secretes important fluids
What 5 organs are included in the integumentary system?
skin
hair
nails
sebaceous glands
sweat glands
What is the primary function of the skin?
to protect
What do sensory protectors do?
detect pain, temperature, touch, and pressure
What do sweat glands produce?
sweat (cools body)
What do sebaceous glands produce?
an oil called sebum (keeps skin from becoming too dry)
What is the deepest layer of the epidermis?
the basal layer
What is the deepest layer of skin?
dermis
Melanocytes
produce black pigment melanin that gives skin its color
What 5 structures are found in the dermis layer of skin?
hair follicles
sweat and sebaceous glands
blood and lymph vessels
sensory and nerve receptors
muscle fibers
Which layer lies beneath the skin?
the subcutaneous layer
What does the subcutaneous layer do?
protects deeper tissue of body and acts as insulation against heat and cold
What are the accessory organs?
hair, nails, sebaceous glands, and sweat glands
What gland is sweat secreted from when it produces body odor?
the apocrine gland
Pathology: Dermatology
involves diagnosis and treatment of conditions and diseases of the integumentary system: physician is dermatologist
Pathology: Plastic Surgery
surgical specialty involved in repair, reconstruction, or improvement of body structures such as damages, missing, or misshapen skin; physician is plastic surgeon
Signs and Symptoms: Abrasion
a scraping-away of skin surface by friction
Signs and Symptoms: Anhidrosis
abnormal condition of no sweat
Signs and Symptoms: Bulla
large blister; larger than a vessicle
Signs and Symptoms: Comedo
collection of hardened sebum in hair follicle; also called a blackhead
Signs and Symptoms: Contusion
injury caused by a blow to the body; causes swelling, pain, and bruising; skin is not broken
Signs and Symptoms: Cyst
fluid-filled sac under the skin
Signs and Symptoms: Depigmentation
loss of normal skin color or pigment
Signs and Symptoms: Diaphoresis
profuse sweating