Cerebrum Pia mater Choroid plexus of third ventricle Cerebelum Choroid plexus of fourth ventricle Lateral ventricles - Sinus Arachnoid vill Third ventricle
Cerebrum Pia mater Choroid plexus of third ventricle Cerebelum Choroid plexus of fourth ventricle Lateral ventricles - Sinus Arachnoid vill Third ventricle
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:The image depicts a labeled diagram of the brain and surrounding structures in a sagittal section. Here's a detailed description of each labeled part:
1. **Cerebrum**: The largest part of the brain, responsible for voluntary activities, sensation, and thought processes.
2. **Pia Mater**: The delicate innermost layer of the meninges, adhering closely to the brain's surface.
3. **Choroid Plexus of Third Ventricle**: A network of cells producing cerebrospinal fluid in the third ventricle.
4. **Cerebellum**: Located at the back of the skull, involved in coordination and balance.
5. **Choroid Plexus of Fourth Ventricle**: Produces cerebrospinal fluid in the fourth ventricle.
6. **Lateral Ventricles**: Cavities within each hemisphere, containing cerebrospinal fluid to cushion the brain.
7. **Arachnoid Villi**: Projections of the arachnoid membrane into the dural sinuses, facilitating cerebrospinal fluid absorption.
8. **Third Ventricle**: A narrow cavity between the two halves of the brain, part of the ventricular system.
9. **Arachnoid**: The web-like middle layer of the meninges, protecting the brain and spinal cord.
10. **Brainstem**: The lower extension of the brain, managing automatic functions necessary for survival.
11. **Fourth Ventricle**: The cavity located between the brainstem and the cerebellum containing cerebrospinal fluid.
12. **Subarachnoid Space**: The area between the arachnoid membrane and pia mater, containing cerebrospinal fluid.
13. **Dura Mater**: Thick, outermost layer of the meninges enveloping the brain and spinal cord.
14. **Sinus**: Venous channels situated in the dura mater where blood is drained from the brain.
15. **Central Canal**: A fluid-filled channel in the spinal cord, continuous with the ventricular system.
16. **Spinal Cord**: The cylindrical structure of nervous tissue extending from the brainstem, transmitting neural signals.
This diagram serves as a visual guide for understanding the components and structure of the human brain and central nervous system.
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