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3/28/18, 10)17 AM Page 26 of 27 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Fluid for the CSF is derived from the bloodstream. The sites of CSF formation are the (1), special tiny capillaries located in the walls of (2), (3), and (4). Cells that line the ventricles have cilia that move the CSF and are called (5). The two lateral ventricles are separated by a thin membrane called the (6). CSF flows by cilia movement from the two lateral ventricles through the interventricular foramen to the (7). From here, the CSF flows through the (8) into the fourth ventricle. The CSF leaves the fourth ventricle through three openings: the median aperture and two lateral apertures. CSF is now located in the (9) space around the brain, and circulates all around the cerebrum and cerebellum. CSF continues to flow into the inner part of the spinal cord by flowing through the tiny (10) of the spinal cord, as well as around the exterior of the spinal cord in the (11) space. Because CSF is continually being made at the rate of about 20 mL/hr, it has to exit back into the bloodstream by being reabsorbed through the (12) that protrude into the dural venous sinuses. The venous sinus that overlies the brain superiorly is called the (13). ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________ ____________________________
3/28/18, 10)25 AM Page 3 of 8 PRINTED BY: [email protected] Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted. EXERCISES 20 : Using Your Knowledge Name Name ___________________________________ Date Date _________________ Section Section ______________________________ FIGURE 20.16 : Midsagittal section of the human brain MRI. A. MRI Scan of the Human Brain 318 319
3/28/18, 10)25 AM Page 4 of 8 1. 2. 3. 4. 5. Identify the structures in Figure 20.16 Figure 20.16 , midsagittal view. ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________
3/28/18, 10)25 AM Page 5 of 8 6. 7. 8. 9. 10. PRINTED BY: [email protected] Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted. FIGURE 20.17 : Human brain, transverse section. B. Transverse Section of a Human Brain Identify the structures in Figure 20.17 Figure 20.17 , a transverse section. ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ ___________________________________________ 319 320
3/28/18, 10)25 AM Page 6 of 8 11. 12. 13. 14. 15. PRINTED BY: [email protected] Printing is for personal, private use only. No part of this book may be reproduced or transmitted without publisher's prior permission. Violators will be prosecuted. FIGURE 20.18 : Human brain, sagittal section. C. Sagittal Section of Human Brain

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