**Core Concept**
The cerebral cortex is the outermost layer of the brain responsible for processing sensory information, controlling movement, managing higher-level cognitive functions, and facilitating thought, perception, and memory. It is divided into distinct regions, each with unique functions and neural connections.

**Why the Correct Answer is Right**
To answer this question correctly, one must be familiar with the different layers of the cerebral cortex and their respective functions. The cerebral cortex is composed of four layers: molecular, external granular, pyramidal, and internal granular. The pyramidal cells in the pyramidal layer are responsible for the majority of neural transmission and are involved in various cognitive functions.

**Why Each Wrong Option is Incorrect**
**Option A:** This statement is false because the cerebral cortex is not solely responsible for controlling voluntary movements. While it does play a role in motor function, other brain regions such as the cerebellum and basal ganglia are also involved.

**Option B:** This statement is true. The cerebral cortex is indeed the site of higher-level cognitive functions, including thought, perception, and memory.

**Option C:** This statement is false because the cerebral cortex is not directly responsible for regulating autonomic functions such as heart rate and blood pressure. Those functions are primarily controlled by the autonomic nervous system, which includes the brainstem and spinal cord.

**Option D:** This statement is true. The cerebral cortex is composed of distinct regions, each with unique functions and neural connections.

**Clinical Pearl / High-Yield Fact**
One key aspect to remember is that the cerebral cortex is highly plastic, meaning that it can reorganize itself in response to injury or changes in sensory input. This process is known as neuroplasticity and is essential for recovery from stroke or other brain injuries.

**Correct Answer: B. The cerebral cortex is indeed the site of higher-level cognitive functions, including thought, perception, and memory.**