WebA stretch reflex is the contraction of a muscle in response to stretching of muscle spindles, which are receptors that lie in parallel with extrafusal muscle fibers. The reflex is composed of a two-neuron arc. The afferent … WebCommon triggers are: Stretching your muscles. Moving your arm or leg. Any irritation to the skin, such as rubbing, chafing, a rash, in-grown toenails, or anything that would normally be very hot or cold or cause pain. Pressure sores. A urinary tract infection or full bladder. Constipation or large hemorrhoids.
Vagal Response Causes and Triggers - Verywell Health
WebMar 12, 2024 · The gag reflex, also known as the pharyngeal reflex, is an involuntary reflex involving bilateral pharyngeal muscle contraction and elevation of the soft palate. This reflex may be evoked by stimulation of … WebDec 23, 2024 · There are a variety of triggers that can set off the vagal response. Some are internal, while others come from the environment. Common triggers of the vagal response include: 3. Emotional stress; fear. Having blood drawn; the sight of blood. Gastrointestinal illness. Having a bowel movement. Heat. Pain. tim oshinski
Hyporeflexia - Wikipedia
WebWhat causes increased deep tendon reflexes? If the lesion or injury involves the upper motor neuron (brain, brainstem, or spinal cord), an increased reflex will be present. In severe chronic cases, usually associated with spasticity, clonus can be seen. It is common in stroke, spinal cord injury, cerebral palsy, and multiple sclerosis. WebMar 8, 2024 · Usually, the reflex is activated when something touches the base of the tongue or tonsil area, but it can also be triggered by your other senses, including taste, smell, sight, and sound. That will cause you to experience symptoms of gagging that include muscle … WebNov 20, 2024 · Hyporeflexia develops as a result of damage to motor neurons. These neurons send messages between your brain and spinal cord. Collectively, they send messages to the rest of your body to control... tim osgb