Introduction to the Integumentary System definitions Flashcards
Introduction to the Integumentary System definitions
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Integumentary System
Comprises skin, hair, nails, glands, and sensory receptors, providing protection, sensation, and homeostasis.Epidermis
Outermost skin layer made of stratified squamous epithelial tissue, providing a barrier to the external environment.Dermis
Layer beneath the epidermis, composed mainly of connective tissue, housing blood vessels, nerves, and glands.Hypodermis
Subcutaneous layer beneath the skin, consisting of fat and connective tissue, providing insulation and cushioning.Cutaneous Membrane
Another term for skin, consisting of the epidermis and dermis, serving as a protective barrier.Accessory Structures
Includes hair, nails, sweat glands, and sebaceous glands, contributing to the skin's functions.Stratified Squamous Epithelium
Type of epithelial tissue in the epidermis, consisting of multiple layers of flat cells.Homeostasis
Process of maintaining stable internal conditions despite external changes, aided by the integumentary system.Keratinocytes
Cells in the epidermis responsible for producing keratin, a protein that strengthens the skin.Melanocytes
Cells in the epidermis that produce melanin, contributing to skin pigmentation and UV protection.Sebaceous Glands
Oil-producing glands in the skin, helping to lubricate and waterproof the skin and hair.Sweat Glands
Glands in the skin responsible for producing sweat, aiding in temperature regulation and waste excretion.Sensory Receptors
Nerve endings in the skin that detect sensations such as touch, temperature, and pain.Vitamin D Synthesis
Process initiated in the skin under UV light, crucial for bone health and calcium regulation.Nonverbal Communication
Expression of emotions through facial expressions, facilitated by the skin and underlying muscles.