KP161 Lecture Notes - Lecture 7: Golgi Tendon Organ, Secondary Somatosensory Cortex, Postcentral Gyrus
5 Feb 2018
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Document Summary
Muscle contacts but the length does not change. Golgi tendon organs active in isometric contraction. Role of somatosensation at the spinal cord level: Information from the cutaneous, muscle, and joint receptors modified the output of circuits at the spinal cord level that control basic activities. Makes the motor control system more efficient and flexible. Provides information about initial body and limb position. Cortical areas add detail to what we are seeing, touching, etc. Reestablishing proprioception: a primary concern for rehab programs. Not reestablishing proprioception: can result in instability and may impair performance and predispose an athlete/patient to recurrent injury. Temporal and parietal lobe get affected by stroke. Photoreceptors are the ones in your visual system. Take light waves and convert them into neurological systems. Photoreceptors optic nerve optic chiasm optic tract lgn optic radiation . 70% of all sensory receptors located in the eyes. 40% of the cerebral cortex thought to be involved in processing visual information.
