Cortical and Brainstem Motor Control

by Osama, Muhammad

Physiology

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Data 2fimages 2fpqnhsw2scqstbeed21zl 181108 s0 osama muhammad cortical and brainstem control intro
02:53
Cortical and Brainstem Motor Control
Data 2fimages 2f7vojluy1tfkpokjahye4 181108 s1 osama muhammad functional areas
09:44
Functional Areas
Data 2fimages 2fakame24erwc2gvcybggf 181108 s2 osama muhammad pathways from motor cortex
05:07
Pathways from Motor Cortex
Data 2fimages 2frtspxdu9rvwadvz6tg9j 181108 s3 osama muhammad motor cortex
13:23
Incoming Signals to Motor Cortex
Data 2fimages 2fizoybm3r1kjsw2kdmefq 181108 s4 osama muhammad motor control of brainstem
08:55
Motor Control of Brainstem
Data 2fimages 2f4gud1hsrrjijxhnfik5k 181108 s5 osama muhammad sensation and maintenance of equilibrium
13:14
Sensation and Maintenance of Equilibrium

Lecture´s Description

Functional Areas
This lecture delivers extensive information about the topic Cortical and Brainstem Motor Control. Section one is about 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 forward towards the end, the educator explains in detail the Red Nucleus and the Rubro-spinal Tract


Incoming Signals to Motor Cortex
Section three is about the 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
Section four deals with the 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 are 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. First of all, 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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