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  2. Reflex arc - Wikipedia

    en.wikipedia.org/wiki/Reflex_arc

    Reflex arc demonstrated. 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 ...

  3. Golgi tendon reflex - Wikipedia

    en.wikipedia.org/wiki/Golgi_tendon_reflex

    The reflex arc is a negative feedback mechanism preventing too much tension on the muscle and tendon. When the tension is extreme, the inhibition can be so great it overcomes the excitatory effects on the muscle's alpha motoneurons causing the muscle to suddenly relax. [1]

  4. List of reflexes - Wikipedia

    en.wikipedia.org/wiki/List_of_reflexes

    Ankle jerk reflex — jerking of the ankle when the Achilles tendon is hit with a tendon hammer while the foot is relaxed, stimulating the S1 reflex arc. Arthrokinetic reflex — muscular activation or inhibition in response to joint mobilization; Asymmetric tonic neck reflex (ATNR) or tonic neck reflex a primitive reflex— in infants up to ...

  5. Patellar reflex - Wikipedia

    en.wikipedia.org/wiki/Patellar_reflex

    This is a reflex of proprioception which helps maintain posture and balance, allowing to keep one's balance with little effort or conscious thought. The patellar reflex is a clinical and classic example of the monosynaptic reflex arc. [3] There is no interneuron in the pathway leading to contraction of the quadriceps muscle.

  6. Lazarus sign - Wikipedia

    en.wikipedia.org/wiki/Lazarus_sign

    Like the knee jerk reflex, the Lazarus sign is an example of a reflex mediated by a reflex arc—a neural pathway which passes via the spinal column but not through the brain. As a consequence, the movement is possible in brain-dead patients whose organs have been kept functioning by life-support machines , precluding the use of complex ...

  7. As finasteride use by younger men soars, some doctors ... - AOL

    www.aol.com/news/finasteride-younger-men-soars...

    These adverse sexual side effects are typically seen in less than 5% of men on the drug. There is also a link to mental health effects, including depression. However, it’s unclear how common ...

  8. Low-level laser therapy - Wikipedia

    en.wikipedia.org/wiki/Low-level_laser_therapy

    We also discovered that the data about the effects of laser acupuncture against reflexology in terms of functional ability, quality of life, and inflammation is quite hazy, and about the effects of red laser versus sham in terms of pain, morning stiffness, and side events. [57]

  9. Male birth control gel is safe and effective, new trial ...

    www.aol.com/news/male-birth-control-gel-safe...

    Also at the Boston conference on Sunday, YourChoice Therapeutics said a very small trial in the U.K. — just 16 men — showed that its nonhormonal pill, YCT-529, was safe and free of side effects.