Bio 152 module 2.docx. PORTAGE LEARNING. QUESTIONS WITH ACCURATE ANSWERS. APPROVED PASS RATE.

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Cross section of the human brain. The cerebrum, diencephalon (blue), brainstem, and cerebellum. Cross section of the brain with ventricles highlighted in blue. There are two lateral ventricles, on... e third ventricle and one fourth ventricle, which drains CSF into the central canal of the spinal cord. Astrocytes help to form the blood-brain barrier by wrapping tightly around capillaries of the central nervous system, preventing harmful substances from harming neurons. Superior view of the left and right cerebral hemispheres, divided by the median longitudinal fissure. Deep grooves are called sulci, and ridges are called gyri in the cerebral cortex. Posterior view of the brain: The cerebrum (blue) is separated from the cerebellum by the transverse fissure. The cerebral cortex is highly ridged with deep grooves to increase the surface area. The corpus callosum (blue) connects the left and right cerebral hemispheres. Each hemisphere is divided into lobes that are specialized to control different body functions. (Lateral view, Anterior is left, Posterior is right). Posterior view of the brainstem (Cerebrum and cerebellum removed) [Show More]

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