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brain
| Question | Answer |
|---|---|
| arachnoid | The thinner, more delicate middle layer of the meninges. |
| cerebellum | The second major structure of the brain. |
| cerebrum | Accounts for 80% of the brain’s mass. |
| choroid plexus | Projections into the brain ventricles that produce cerebrospinal fluid. |
| commissure | A site of union of common parts. |
| corpora quadrigemina | Part of the mesencephalon. |
| corpus callosum | An arched mass of white matter found in the depths of the longitudinal fissure. |
| diencephalon | Contains some of the most vital centers of body activity. |
| dura mater | The outermost layer of the meninges that contacts the cranium. |
| fissures | Deep grooves that divide the lobes of the cerebral hemispheres. |
| fornix | A general term for an arch-like structure or the vault created by such a structure. |
| genu | A general term used to describe any anatomical structure shaped like a knee. |
| gyri | The raised portions of the cerebral surface. |
| mammillary body | Located near the pituitary gland. |
| medulla oblongata | Together with the pons, it makes up the brain stem. |
| meninges | The three membranes that protect the brain and spinal cord. |
| mesencephalon | The midbrain. |
| neuron | A general term meaning nerve cell. |
| optic chiasm | Part of the hypothalamus formed by the crossing of the optic nerves. |
| pia mater | The innermost layer of the meninges. |
| pituitary | The “master gland.” |
| septum pellucidum | A triangular membrane separating the anterior horns of the lateral ventricles. |
| splenium of corpus callosum | The posterior rounded end of the corpus callosum; it conveys visual information. |
| sulci | Grooves between the gyri. |
| The raised portions of the cerebral surface. | gyri |
| A triangular membrane separating the anterior horns of the lateral ventricles. | septum pellucidum |
| A general term meaning nerve cell. | neuron |
| The three membranes that protect the brain and spinal cord. | meninges |
| Accounts for 80% of the brain's mass. | cerebrum |
| Projections into the brain ventricles that produce cerebrospinal fluid. | choroid plexus |
| Deep grooves which divide the lobes of the cerebral hemisphere. | fissures |
| The posterior rounded end of the corpus callosum; it conveys visual information. | splenium of corpus callosum |
| Together with the pons makes up the brain stem. | :medulla oblongata |
| A general term for an arch-like structure or the vault created by such a structure. | fornix |