Skin Anatomy and Functions
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Questions and Answers

What is the primary function of the skin?

  • To provide valuable information about our general health condition (correct)
  • To facilitate movement and proprioception
  • To enable aesthetic impairment assessment
  • To regulate body temperature
  • What is the term for the skin area innervated by a spinal nerve corresponding to a spinal segment?

  • Touch perception area
  • Proprioception zone
  • Sensory receptor
  • Dermatome (correct)
  • What is the significance of overlapping dermatomes?

  • It enhances vibration and soft touch perception (correct)
  • It allows for precise localization of skin sensations
  • It increases the complexity of skin assessment
  • It reduces pain and temperature sensitivity
  • What is the purpose of palpation during skin assessment?

    <p>To examine skin texture</p> Signup and view all the answers

    What does a yellowish skin coloration indicate?

    <p>Liver problems</p> Signup and view all the answers

    What is the term for when the skin remains the same color, but melanocytes produce more melanin?

    <p>Hyper-pigmentation</p> Signup and view all the answers

    What is the term for the skin's mechanical properties, tested through the skin fold?

    <p>Skin mechanical properties</p> Signup and view all the answers

    What is the term for the ability of the skin to return to its original state after stretching or deformation?

    <p>Elasticity</p> Signup and view all the answers

    What is the term for the sweat glands' ability to produce sweat in response to heat and humidity?

    <p>Sudoration</p> Signup and view all the answers

    What is the term for the condition of having excessive hair growth?

    <p>Hairiness</p> Signup and view all the answers

    What type of sensory receptors are sensitive to skin displacement and vibration?

    <p>Pacinian Corpsucles</p> Signup and view all the answers

    Which type of sensory receptors are found in the papillary dermis and respond to light and discriminatory touch?

    <p>Meissner’s corpuscles</p> Signup and view all the answers

    What is the function of proprioception in massage therapy?

    <p>To maintain posture and balance</p> Signup and view all the answers

    Which type of fibers are responsible for endurance and stabilizers in dynamic movement?

    <p>Type I fibers</p> Signup and view all the answers

    What type of sensory receptors are sensitive to skin displacement and maintained pressure?

    <p>Ruffini corpuscles</p> Signup and view all the answers

    What is the outermost layer of the skin?

    <p>Stratum Corneum</p> Signup and view all the answers

    What type of sensory receptors respond to changes in temperature?

    <p>Thermoreceptors</p> Signup and view all the answers

    Which skin layer provides mechanical protection?

    <p>Hypodermis</p> Signup and view all the answers

    What is the function of sensory receptors in the skin?

    <p>To detect environmental stimuli</p> Signup and view all the answers

    What is the term for the ability to sense the position and movement of body parts?

    <p>Proprioception</p> Signup and view all the answers

    What is the origin of the epidermis and appendages of the skin?

    <p>Ectoderm</p> Signup and view all the answers

    What is the term for the ability to identify objects by touch?

    <p>Sterognosis</p> Signup and view all the answers

    Which type of sensitivity is associated with deep sensitivity?

    <p>Proprioceptive sensitivity</p> Signup and view all the answers

    What is the term for the ability to differentiate two points applied to the skin at the same time?

    <p>Two-point discrimination</p> Signup and view all the answers

    What is the characteristic of the skin that allows it to maintain its shape and structure?

    <p>Elasticity</p> Signup and view all the answers

    What is the term for the absence of perception?

    <p>Anesthesia</p> Signup and view all the answers

    What is the term for the ability to sense joint position and movement?

    <p>Proprioception</p> Signup and view all the answers

    What is the term for the sensation of tingling, prickling, numbness, or burning?

    <p>Paresthesia</p> Signup and view all the answers

    What is the term for the normal functioning of sensory receptors?

    <p>Normoesthesia</p> Signup and view all the answers

    What is the term for the measurement of skin thickness?

    <p>Adipometer</p> Signup and view all the answers

    What is the effect of stroking on blood supply?

    <p>Increases blood supply</p> Signup and view all the answers

    What is the term for relieving pain?

    <p>Analgesic</p> Signup and view all the answers

    What is the effect of compression on muscles?

    <p>Decreases muscular tone</p> Signup and view all the answers

    What is the purpose of manual lymphatic drainage?

    <p>To reduce swelling and promote healing</p> Signup and view all the answers

    What is the effect of stroking on tissue?

    <p>Relaxes tissue</p> Signup and view all the answers

    What is the term for the ability of the skin to relax?

    <p>Relaxation response</p> Signup and view all the answers

    What is the effect of stripping on blood flow?

    <p>Increases blood flow</p> Signup and view all the answers

    What is the effect of heat on the skin?

    <p>Increases sweat production</p> Signup and view all the answers

    What is the purpose of stretching in massage therapy?

    <p>To improve flexibility</p> Signup and view all the answers

    What is the effect of increased frequency on the skin?

    <p>Relaxes tissue</p> Signup and view all the answers

    Study Notes

    Types of Mechanoreceptors

    • Type 1: Small, surface covering, and slowly adapting, sensitive to skin displacement and maintained pressure, found in reticular dermis
    • Type 2: Wide, well-defined surface covering, rapidly adapting, sensitive to skin displacement and vibration, found in papillary dermis, hypodermis, periosteum, tendons, and synovial membranes

    Mechanoreceptors

    • Pacinian corpuscles (Type 2, rapidly adapting): sensitive to skin displacement and vibration, found in papillary dermis, hypodermis, periosteum, tendons, and synovial membranes
    • Ruffini corpuscles (Type 2, slowly adapting): sensitive to skin displacement and maintained pressure, found in reticular dermis and hypodermis
    • Krause end bulbs (Type 2, rapidly adapting): sensitive to light touch, found in reticular dermis, mucocutaneous, and synovial membranes
    • Meissner's corpuscles (Type 1, rapidly adapting): sensitive to light and discriminatory touch, vibratory, found in papillary dermis, located in thick hairless skin (e.g., finger pads)

    Nociceptors

    • Low threshold, triggered when tissue is damaged, can evoke emotions such as anger, anxiety, or fear
    • Small, non-myelinated or lightly myelinated afferent neurons

    Positioning in Massage Therapy

    • Proprioception: essential for stabilizers (endurance), dynamic movement, and cortical sensitivity
    • Synesthesia: same path for senses (e.g., visual-tactile, pain-color, auditory-tactile)

    Proprioceptive Sensitivity

    • Deep sensitivity: proprioceptive, epicritic, or cortical sensitivity
    • Baresthesia: ability to perceive pressure
    • Graphesthesia: ability to identify signs in the skin
    • Two-point discrimination: ability to differentiate two points applied in the skin at the same time

    Skin Structure and Function

    • Wrap membrane: alive, relatively waterproof, elastic, and mobile
    • Continuity with mucous membranes
    • Highly vascularized
    • Originated from 2 blastodermic layers: ectoderm (epidermis and appendages) and mesoderm (dermis and hypodermis)

    Basic Maneuvers in Massage Therapy

    • Stroking: analgesic, relieves pain, increases blood supply, and reduces muscle tone
    • Manual lymphatic drainage: for scars and bruises
    • Compression: increases blood supply, reduces muscle tension, and has an analgesic effect
    • Tension and stretching: increases blood supply, reduces muscle tension, and has an analgesic effect

    Skin Examination

    • Visual inspection: observes skin color, hairiness, volume, appearance, secretion, flexion creases, and hair and nails
    • Palpation: tests skin mechanical properties (consistency, thickness, extensibility, flexibility, and mobility), trophism, and blood supply
    • Mobilization: active and passive mobilization, instrumentation, and visual inspection

    Skin Mechanical Properties

    • Consistency: force used to form and maintain the skin fold
    • Thickness: width of the skin fold
    • Extensibility: how much the skin can be pulled
    • Flexibility: how much the skin fold can be twisted
    • Mobility: how much the skin can be moved
    • Elasticity: ability to return to its original state

    Skin Functions

    • Protective: mechanical, antimicrobial, thermal, electrical, and chemical protection
    • Sensory: sensitivity to internal and external stimuli
    • Regulates body temperature
    • Aids in the synthesis of vitamin D

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    Description

    Test your knowledge of the skin's structure and functions, including the epidermis, dermis, hypodermis, and skin annexes, as well as the protective functions of the skin, such as mechanical, antimicrobial, thermal, electrical, and light protection.

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