Cortical and Brainstem Motor Control | Anatomy Lecture 2018 | Medical V-Learning Platform

Cortical and brainstem motor control has been highlighted in this sqadia.com medical lecture. This V learning lecture provides an explication of functional areas, pathways from motor cortex and incoming signals to motor cortex. In addition to this, motor control of brainstem, role of both reticular and vestibular nuclei has been discussed. Furthermore, a detail comprehension of sensation, maintenance of equilibrium and vestibular apparatus.

FUNCTIONAL AREAS
In the beginning, the educator talks about functional areas of the cerebral cortex and demonstrates primary motor cortex. He further discusses the premotor area and elaborates the supplemental motor area in detail. degree of representation of different muscles-motor cortex is then explained in detail. In the end, the specialized areas of motor control were elucidated.

PATHWAYS FROM MOTOR CORTEX
Section two is dedicated to the discussion of pathways from motor cortex. transmission of cortical motor signals is focused in the start of this section. The educator then reports the cortico-spinal (pyramidal) tract. Which is explained in detail with the help of detail diagram. After that, other pathways from the motor cortex are the subject of discussion. Moving towards the end, the educator explains in detail the red nucleus and the rubro-spinal tract

INCOMING SIGNALS TO MOTOR CORTEX
Initially educator describes the concept in depth then sensory feedback for motor control is demonstrated. The educator also comments on the excitation of spinal motor neurons, excitation of 50-100 giant pyramidal cells  cause muscle contraction. Subsequently, the upper & lower motor neuron lesion are pursued. Lastly, the lesions of motor cortex were highlighted.

MOTOR CONTROL OF BRAINSTEM
Firstly, the educator gives an overview regarding the control of motor function by the brainstem. After that, the orientation of brainstem nuclei is introduced. pontine reticular nuclei, medullary reticular nuclei and vestibular nuclei are also discussed in this section. role of brainstem nuclei and support of the body against gravity are elucidated in the end.

SENSATION AND MAINTENANCE OF EQUILIBRIUM
Section five imparts detailed information about sensation and maintenance of equilibrium. Firstly, the the vestibular apparatus is explained. The educator then explains the membranous labyrinth. Next comes the maculae – sensory organs, which is followed by explanation of maculae. After that educator explains the directional sensitivity of hair cells – kinocilium. In the end of this lecture, semicircular ducts is comprehensively discussed.
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Duration of the complete Anatomy Lecture: 53:16
Release date: November 2018

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Видео Cortical and Brainstem Motor Control | Anatomy Lecture 2018 | Medical V-Learning Platform канала sqadia.com