NERVOUS SYSTEM SPECIAL SENSE
CEREBRUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Provides sensory perception
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Detect tactile stimuli
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Triggers contraction of skeletal muscles
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Connecting the sense of smell with memory
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Detailed explanation-1: -That is, the primary motor cortex (M1) located in the precentral gyrus was originally defined based on the ability to evoke contractions in skeletal muscles by applying electrical current either superficially on the surface of the brain or deep within the cortical grey matter.
Detailed explanation-2: -The motor cortex allows for the precise voluntary movements of our skeletal muscles, while the Broca area controls motor functions responsible for producing language.
Detailed explanation-3: -Precentral and postcentral gyri are two main gyri found in the brain. Precentral gyrus controls voluntary motor movements while postcentral gyrus controls involuntary functions.
Detailed explanation-4: -The precentral gyrus, which is directly anterior to the central sulcus and runs parallel to it, contains the primary motor cortex (Brodmann area 4). The primary motor cortex is responsible for controlling the voluntary movements of specific body parts.