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leannamat2106
02.03.2020 •
Biology
A brain hemorrhage within the region of the right internal capsule results in paralysis of the left side of the body. Explain why the left side (rather than the right side) is affected.
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Ответ:
A brain haemorrhage within the region of the right internal capsule results in paralysis of the left side of the body because the motor area of the igt hemisphere of the cerebrum controls the muscle movement on the right side of the body and vice versa.
Explanation: The primary motor area lies in the frontal lobe of the brain immediately anterior to the central sulcus.the cell bodies are pyramid shaped and they control skeletal muscle activities.two neurons are involved in the pathway to skeletal muscle(the upper motor neurone and the lower motor neurone).The upper motor neurone descends from the motor cortex if the brain through the internal capsule of the medulla oblongata,then it CROSSES TO THE OPPOSITE SIDE and descends in the spinal cord.
From the spinal cord,it joins with the lower motor neurone whivh leaves the spinal cord and goes to the target muscle.
When either of these neurones is damaged,it results to paralysis.
Ответ:
Hey there!
The purpose of guard cells is to control the opening and closing of the Stomata, keeping it the correct width, or size.
Therefore, your correct answer would be Option 3, control the size of the Stomata.
Hope this helps!
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