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Chap 13 part I
Central Nervous System
Question | Answer |
---|---|
Ventricles of Brain | -four ventricles make up central cavity of brain -filled cerebral spinal fluid CSF -lined with ependymal cells |
Name Ventricles of Brain (4) | 1. Lateral Ventricle (2) 2. Third Ventricle 3. Fourth Ventricle |
Lateral Ventricle | -one on either side of brain so 2 -horse shoe shaped -located in cerebral hemisphere |
Third Ventricle: Location | In Diencephalon |
What connects Lateral Ventricle and Third Ventricle? | Interventricle Foramen |
What connects Third and Fourth Ventricle? | Cerebral Aqueduct |
Fourth Ventricle | 1. lies behind the brainstem 2. connected to central canal of spinal cord |
Three surface landmarks of Cerebral Hempisphere | 1. Sulcus 2. Fissures 3. Gyrus |
Sulcus | grooves on cerebral hemisphere |
Fissures | separate major portions of brain |
Gyrus | twisted brain tissue in between sulci |
Five Cerebral Lobes | 1. Frontal Lobe 2. Temporal Lobe 3. Parietal Lobe 4. Occipital Lobe 5. Insula |
Frontal Lobe | 1. Anterior to Central Sulcus 2. Superior to Lateral Sulcus |
Parietal Lobe | 1. Posterior to Central Sulcus 2. Superior to Lateral Sulcus 3. Anterior to parieto-occipital sulcus |
Temporal Lobe | 1. Inferior to Lateral Sulcus 2. Anterior to Occipital Lobe |
Occipital Lobe | 1. Posterior and Inferior to parieto-occipital lobe 2. posterior to temporal lobe |
Insula | -buried deep within lateral sulcus -forms part of floor |