Which of the following is a primary sensory cortex?Group of answer choicesPrecentral gyrusPostcentral gyrusCalcarine gyrusPrefrontal gyrus

To determine which of the options is a primary sensory cortex, we first need to identify the functions associated with each of the given gyri.

1. Precentral gyrus: This area is known as the primary motor cortex, responsible for the planning and execution of voluntary movements.

2. Postcentral gyrus: This area serves as the primary somatosensory cortex, responsible for processing sensory information such as touch, temperature, and pain from the body.

3. Calcarine gyrus: This gyrus is primarily involved in visual processing, acting as the primary visual cortex.

4. Prefrontal gyrus: This area is associated with higher cognitive functions such as decision-making and is not a primary sensory cortex.

Final Answer

The primary sensory cortex among the options provided is the Postcentral gyrus.