Chp 14 Cerebrospinal Fluid Flow Flashcards
A cavity located in the interior of each cerebral hemisphere that are the largest?
The lateral ventricles (2)
What is a cavity in the brain?
a ventricle (pg. 82)
What are the lateral ventricles separated by?
the septum pellicidum (pg. 82)
How do the lateral ventricles communicate with the third ventricle?
The interventricular foramen of Monro (pg. 82)
What is the cavity that is located in the pons and medulla and is continuous with the central canal of the spinal cord?
The fourth ventricle (1) (pg. 82)
The fourth ventricle opens by means of these (how many of each?) into the subarachnoid space and are the only means by which the cerebrospinal fluid formed in the ventricles enters the subarachnoid space.
one median and two lateral apertures (pg. 82)
What structures in that line the ventricles produce CSF?
choroid plexus (pg. 82)
What are the characteristics of CSF fluid (not the functions yet)?
Clear, colorless, acellular, similar to blood plasma. (pg. 82)
What is the narrow cavity located between the thalami of each side?
The third ventricle (pg. 82)
How does the third ventricle communicate with the fourth ventricle?
the cerebral aqueduct of sylvius (which is located in the midbrain) (pg. 82)
What are the function of the CSF?
- cushion and support the brain and spinal cord
- as a lymphatic system
- as an enviroment for neurons (pg. 82)
Trace the course of CSF through the ventricles to the arachnoid granulations. (See page 83 for detailed answer)
- Right and Left lateral ventricle
- Interventricular foramen of monro
- Third ventricle
- Cerebral aqueduct of sylvius
- Fourth ventricle
- Bilateral Foramen of Luschka- Foramen of Magendie-(middle)
- Subarachnoid Space
- Arachnoid granulations
