What structures are included in the integumentary system? The portion of the hair where cell divisions occur a. Root b. Hairs; Nails; Sweat glands; Sebaceous glands; Subcutaneous tissue and deep fascia; Mucocutaneous junctions; Breasts; Skin. Other components of the hypodermis include blood vessels, lymph vessels, nerves, hair follicles, and white blood cells known as mast cells. The integumentary system is composed of skin, hair, nails, and glands. The storage of fat helps insulate the body and the burning of fat helps generate heat. These cells constantly divide to produce new cells that are pushed upward to the layers above. The Integument system will move against mechanical loads such as friction and vibrations that can detect physical changes in the outside environment, with unpleasant and avoidable stimuli from internal organs as vital functions in the body. The innermost layer of the epidermis contains keratinocytes called basal cells. Skin may be one of the most underestimated organs in the body. Biology Prefixes and Suffixes: Derm- or -Dermis, Learn About All the Different Organ Systems in the Human Body, Understanding the Healing Uses of Artificial Skin, The Purpose and Composition of Adipose Tissue, Epithelial Tissue: Function and Cell Types, A.S., Nursing, Chattahoochee Technical College. Beneath these two layers lies the hypodermis, composed of loose connective tissue (adipose and areolar). The skin has many functions, including serving as an enclosing barrier and providing environmental protection, regulating temperature, producing pigment and vitamin D, and sensory perception. These layers – the epidermis and the dermis – contain a variety of structures, including blood vessels, hair follicles, and sweat glands. protection, regulate body temperature, reception of stimuli, excretion, synthesis of vitamin D, immunological function skin may be one of the most underestimated organs in the body. The dermis is made of two layers of connective tissue that compose an interconnected mesh of elastin and collagenous fibers, … All these structures together provide protection to the inner tissues of the body. Previous question Next question Transcribed Image Text from this Question. Beneath the dermis lies the hypodermis (subcutis). what structures are included in the integumentary system? Correspondingly, what does the integumentary system include? Integumentary System Worksheet 1. Postnatally at puberty, female mammary glands under the influence of mainly sex hormone signaling, undergo a series of growth changes that can be defined anatomically by a series of "Tanner Stages". The most superficial layer, the epidermis, is composed of stratified squamous epithelia that are keratinized at the outermost surface, melanocytes, immune cells (Langerhans that modulate immune response) and sensory receptors (Merkel cells that detect light touch). The hypodermis also connects the skin to underlying tissues through collagen, elastin, and reticular fibers that extend from the dermis. Together, these two layers form the largest organ in the body, with a surface area of nearly 2 square meters.The epidermis is the outer layer, resting atop the dermis. The dermis also contains nerves. 4. Bailey, Regina. The integumentary system creates a protective barrier between the body and the external world. Unlike the other bodily systems throughout the body, the integumentary system is not localized to one area or region of the body; instead, the integumentary system covers the entire body. The skin consists of two layers – the dermis and the epidermis. Module 5.1: The integumentary system consists of the skin and various accessory structures Integumentary systemoverview Most accessible organ system Can be referred to as skin or integument 16 percent of total body weight 1.5–2 m2in surface area Body’s first line of defense against environment Has two major components 1. The accessory structures of the integumentary system include a. Glands, muscles, and nerves b. Functions of the integumentary system include providing a protective covering for the body, sensing the environment, and helping the body maintain homeostasis. Areas of the body in which the hypodermis is thick include the buttocks, palms, and soles of the feet. n The organs of the integumentary system include the skin and its accessory structures including hair, nails, and glands, as well as blood vessels, muscles and nerves n Dermatology is the medical specialty for the diagnosis and treatment of disorders of the integumentary system. The dermis lies beneath the epidermis and is composed of two layers of connective tissue: a loose layer (papillary) and a dense irregular layer (reticular). Adipocytes swell when fat is being stored and shrink when fat is being used. Split End c. Shaft d. Cuticle 6. The rest of the body is covered by thin skin, the thinnest of which covers the eyelids. Integumentary System Worksheet 1. Keratin is a major component of skin, hair, and nails. _____ What is the subcutaneous layer? It has a variety of additional functions; it may serve to waterproof, and protect the deeper tissues, excrete wastes, and regulate body temperature, and is the attachment site for sensory receptors to detect pain, sensation, pressure, and temperature. The integumentary system helps regulate body temperature through its tight association with the sympathetic nervous system, the division of the nervous system involved in our fight-or-flight responses. 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