2024-04-14T22:07:50+03:00[Europe/Moscow] en true <p>What is <strong>sensation and perception</strong>?</p>, <p>What is <strong>sensory modality</strong>?</p>, <p>Define what <strong>general senses </strong>and <strong>special senses </strong>are?</p>, <p>What are the 4 events of sensing?</p>, <p>What type of nerve ending is this and what does it detect?</p>, <p>What type of nerve ending is this and what does it detect?</p>, <p>What are <strong>extero and interoreceptors</strong>?</p>, <p><strong>Proprioceptors </strong>are located in ___ and provide information on ___.</p>, <p>What is the name for receptors that detect pain?</p>, <p>What do each of them detect?</p>, <p>Most sensory receptors are capable of ___, which decreases its sensitivity the longer its exposure to the stimuli.</p>, <p>What structures of the body have the highest density of sensory receptors?</p>, <p>What are the 4 groups of somatic sensations?</p>, <p>What are the 2 receptors in the skin?</p>, <p>Why is pain such a vital sensation?</p>, <p>What are the 2 pathways that somatic pain is carried off to in the parietal lobes?</p>, <p>Why is sharp pain conducted quickly?</p>, <p>Tendon organs have what type of receptors?</p>, <p>First order neurons do what?</p>, <p>Where are the cell bodies or first, second and third order neurons located?</p>, <p>Somatic motor pathways consists of a chain of two neurons. Label them in the diagram.</p>, <p>What does the <strong>homunculus </strong>represent in the brain?</p> flashcards
A&P, The Sensory and Integrative Systems

A&P, The Sensory and Integrative Systems

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  • What is sensation and perception?

    Sensation - conscious/subconscious awareness of changes in the environment

    Perception -conscious interpretation of sensations

  • What is sensory modality?

    Each type of sensation (touch, pain, etc.)

  • Define what general senses and special senses are?

    General - receptors distributed throughout the body

    Special - receptors localized to specific sensory organs (nose for smell, etc.)

  • What are the 4 events of sensing?

    - Stimulation

    - Transduction (receptor must pick up stimulus)

    - Conduction (must go through a neural pathway, axon)

    - Translation (translates or interprets stimulus into sensation).

  • What type of nerve ending is this and what does it detect?

    What type of nerve ending is this and what does it detect?

    Free; temp., itchiness and some touch.

  • What type of nerve ending is this and what does it detect?

    What type of nerve ending is this and what does it detect?

    Encapsulated; detects pressure, vibration and some touch.

  • What are extero and interoreceptors?

    Exteroreceptors - near the body surfaces

    Interoreceptors - in the bv or visceral organs (usually monitors the internal environment)

  • Proprioceptors are located in ___ and provide information on ___.

    muscles, tendons and provide information on the posture, body position etc.

  • What is the name for receptors that detect pain?

    Nociceptors

  • What do each of them detect?

    What do each of them detect?

    1. mechanical stimuli (touch, pressure, vibration, etc.)

    2. changes in temp.

    3. pain

    4. light that strikes the retina

    5. chemicals in mouth (taste), nose (smell) and body fluids

    6. osmotic (water) pressure of body fluids

  • Most sensory receptors are capable of ___, which decreases its sensitivity the longer its exposure to the stimuli.

    adaptation

  • What structures of the body have the highest density of sensory receptors?

    Tip of tongue, lips and fingertips

  • What are the 4 groups of somatic sensations?

    1. Tactile - touch, pressure...

    2. Thermal - temp.

    3. Proprioceptive - movement or strain (kinesthesia)

    4. Pain - pain

  • What are the 2 receptors in the skin?

    - Corpuscle of touch/meissner's corpuscle (papillary of dermis, superior)

    - Pacinian corpuscle (reticular, close to subcutaneous layer)

  • Why is pain such a vital sensation?

    Because it warns us of actual or impeding tissue damage.

  • What are the 2 pathways that somatic pain is carried off to in the parietal lobes?

    - spinothalamic (spinal cord to thalamus, ascending)

    - trigeminothalamic (trigeminal nerve to the thalamus)

  • Why is sharp pain conducted quickly?

    Because it's myelinated

  • Tendon organs have what type of receptors?

    Proprioceptors

  • First order neurons do what?

    Conduct info from the somatic sensory receptors to second-order neurons.

  • Where are the cell bodies or first, second and third order neurons located?

    1. posterior root ganglion2. brain stem or spinal cord3. thalamus

    1. posterior root ganglion

    2. brain stem or spinal cord

    3. thalamus

  • Somatic motor pathways consists of a chain of two neurons. Label them in the diagram.

    Somatic motor pathways consists of a chain of two neurons. Label them in the diagram.

  • What does the homunculus represent in the brain?

    Senses that are being catered to in the primary somatosensory area in the postcentral gyri.

    Senses that are being catered to in the primary somatosensory area in the postcentral gyri.