WGU D312 AP Section 5 lesson 3 Questions and Solutions (A+)

WGU D312 AP Section 5 lesson 3 Questions and Solutions (A+) central nervous system - Answer - the processing center of the body and consists of the brain and the spinal cord brain stem - Answer - a structure that connects the cerebrum of the brain to the spinal cord and cerebellum cerebellum - Answer - portion of the brain in the back of the head between the cerebrum and the brain stem diencephalon - Answer - a division of the forebrain cerebrum - Answer - the largest part of the brain, divided into two hemispheres meninges - Answer - three layers of membranes that protect the brain and spinal cord white matter - Answer - formed by myelinated neuronal axons gray matter - Answer - contains the neuronal cell bodies cerebral cortex - Answer - the outer layer of the cerebrum that is composed of gray matter septum pellucidum - Answer - a fibrous band that joins the right and left hemispheres gyri - Answer - a ridge or fold between two clefts on the cerebral surface in the brain sulci - Answer - a depression or groove in the cerebral cortex parietal lobe - Answer - one of the major lobes in the brain, roughly located at the upper back area in the skull temporal lobe - Answer - the lobes that sit behind the ears and are the second-largest lobe occipital lobe - Answer - the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex frontal bone - Answer - a bone in the human skull central sulcus - Answer - forms the boundary between the frontal and the parietal lobes on the lateral and medial surfaces of the cerebral hemispheres lateral sulcus - Answer - a deep fissure in each hemisphere that separates the frontal and parietal lobes from the temporal lobe primary motor area - Answer - located just in front of the central sulcus, is the area that provides the most important signal for the production of skilled movements primary olfactory cortex - Answer - a region in the frontal lobe of the brain responsible for smell Broca's area - Answer - the area in the frontal lobe responsible for motor speech production Wernicke's area - Answer - the area in the temporal lobe responsible for speech comprehension sensory homunculus - Answer - relative portion of the cerebral cortex dedicated to controlling the sensory and motor function for different areas of the body motor homunculus - Answer - the region that processes the motor output for tongue, lips, hands, fingers, and toes