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  2. Ankle jerk reflex - Wikipedia

    en.wikipedia.org/wiki/Ankle_jerk_reflex

    The ankle jerk reflex, also known as the Achilles reflex, occurs when the Achilles tendon is tapped while the foot is dorsiflexed.It is a type of stretch reflex that tests the function of the gastrocnemius muscle and the nerve that supplies it.

  3. List of reflexes - Wikipedia

    en.wikipedia.org/wiki/List_of_reflexes

    A list of reflexes in humans. Abdominal reflex; Accommodation reflex — coordinated changes in the vergence, lens shape and pupil size when looking at a distant object after a near object. Acoustic reflex or attenuation reflex — contraction of the stapedius and tensor tympani muscles in the middle ear in response to high sound intensities.

  4. Stretch reflex - Wikipedia

    en.wikipedia.org/wiki/Stretch_reflex

    The stretch reflex (myotatic reflex), or more accurately "muscle stretch reflex", is a muscle contraction in response to stretching a muscle. The function of the reflex is generally thought to be maintaining the muscle at a constant length but the response is often coordinated across multiple muscles and even joints. [1] The older term deep ...

  5. Achilles tendon - Wikipedia

    en.wikipedia.org/wiki/Achilles_tendon

    The achilles tendon, tendo calcaneus attaches distally to the calcaneual tuberosity, and arises superiorly from the triceps surae complex of the gastrocnemius and soleus muscles. Achilles tendon at foetus. The Achilles tendon connects muscle to bone, like other tendons, and is located at the back of the lower

  6. Reflex - Wikipedia

    en.wikipedia.org/wiki/Reflex

    A stretch reflex is the contraction of a muscle in response to its lengthwise stretch. Biceps reflex (C5, C6) ... Ankle jerk reflex (Achilles reflex) (S1, S2)

  7. Tendon reflex - Wikipedia

    en.wikipedia.org/wiki/Tendon_reflex

    Tendon reflex (or T-reflex) may refer to: The stretch reflex or muscle stretch reflex (MSR), when the stretch is created by a blow upon a muscle tendon. This is the commonly used definition of the term. [1] [2] Albeit a misnomer, in this sense a common example is the standard patellar reflex or knee-jerk response. [3]

  8. Reflex arc - Wikipedia

    en.wikipedia.org/wiki/Reflex_arc

    When a reflex arc in an animal consists of only one sensory neuron and one motor neuron, it is defined as monosynaptic, referring to the presence of a single chemical synapse. In the case of peripheral muscle reflexes (patellar reflex, achilles reflex), brief stimulation to the muscle spindle results in contraction of the agonist or effector ...

  9. Reciprocal inhibition - Wikipedia

    en.wikipedia.org/wiki/Reciprocal_inhibition

    If opposing muscles were to contract at the same time, a muscle tear can occur. This may occur during physical activities such as running, during which opposing muscles engage and disengage sequentially to produce coordinated movement. Reciprocal inhibition facilitates ease of movement and is a safeguard against injury.

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