BPK 207 Study Guide - Final Guide: Supplementary Motor Area, Occipital Lobe, Frontal Lobe
10 Dec 2017
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Forebrain: basal ganglia cautate, putamen, globus pallidus portions, limbic system cingulate cortex, amygdala, and hippocampus, cerebral cortex. Movement is a collaborative effort among regions in cns. Cortical, subcortical, brainstem, and spinal regions send reciprocal connections to one another. Spinal cord: protected by vertebral column, sacral, lumbar, thoracic, and cervical nerves, propriospinal neurons connect cervical and lumbar segments so that you can move them together, 31 spinal nerves. Cervical nerves control upper limb muscles, including abdominal muscles: motor neurons for limbs. Thoracic nerves control muscles of the trunk and chest. Lumbar nerves control lower limb and lower back muscles: horses tail cauda equina b/w l1 and l2. Sacral nerves control bowel and bladder muscles. Gray matter cell bodies and neurons: alpha motor neurons. White matter myelinated and unmyelinated axons forming the ascending and descending tracts. Cell bodies of motor neurons that innervate muscles are clustered in motor neuron pools or motor nuclei.
