What reflexes does the spinal cord control?
Spinal Reflexes. Spinal reflexes include the stretch reflex, the Golgi tendon reflex, the crossed extensor reflex, and the withdrawal reflex.
What are spinal reflexes?
Spinal reflexes are investigator-evoked artifacts arising from connections of stretch receptors in the muscle or nociceptors in the skin that activate a spinal motor neurons to evoke contractions/twitches in particular somatic muscles (e.g., the quadriceps muscle in a patellar tendon reflex).
What is a good example of a spinal reflex?
For example, the withdrawal reflex (nociceptive or flexor withdrawal reflex) is a spinal reflex intended to protect the body from damaging stimuli. It causes the stimulation of sensory, association, and motor neurons. Spinal reflexes include the stretch reflex, the Golgi tendon reflex, the crossed extensor reflex, and the withdrawal reflex.
Is the spinal cord or the brain involved in reflexes or both?
Neurons in the spinal cord create reflexes that occur independent of the brain. The spinal nerves, which carry signals to and from the brain, make most of the body’s functions, such as movement, and senses, possible. A spinal reflex will bypass the brain and is an action only by the cells in the spinal cord.
Does cranial reflex involve spinal cord?
Location – cranial reflexes have the central nervous system part of their circuit in the brain, while spinal reflexes have it in the spinal cord . Also the cranial reflexes have the peripheral nervous system part of their circuit in cranial nerves, while spinal reflexes have it in spinal nerves.
How are stretch reflexes used to find a spinal cord injury?
Muscle Spindles and the Stretch Reflex. As the ‘squatter’ lowers themselves under load the quadriceps are stretched. The spindles in the quadriceps detect the stretch and send impulses to the spinal cord, and a response is sent back to the muscles resulting in the quadriceps contracting more in order to resist the stretch.