Module 9 Flashcards
What are the 3 layers of connective tissue
- Dura mater
- Arachnoid
- Pia mater
T/F: the dura mater is the innermost layer
False, outermost
What are the two layers of the dura mater
Outer (periosteum of skull) and inner (falx; meningeal layer)
The space between the outer dura and skull is
Epidural
The subdural space is between the_____ and _____
Inner dura and arachnoid
The ___ layer is between the inner dura and pia mater
Arachnoid
The CSF drains into the vascular system via the ____
Arachnoid villi
Cerebral veins are also known as
Sinuses
The _____ space is in between the arachnoid and pia mater
Subdural space
What is contained in the subdural space
CSF and blood vessels
Where is the subarachnoid hemorrhage
Subarachnoid space
The site of subdural hemorrhage is where
Subdural space
What are the three meninges that protect the spinal cord
- Spinal meniges: dura mater
- Spinal meniges: pia mater
- Spinal meniges: arachnoid
T/F the spinal meninges: dura mater, runs from the the conus medullaris to to the coccyx where it attaches as the coccygreal ligament
False; Spinal meninges: pia mater
Which spinal meniges contain the CSF, blood vessels ad cistern
Arachnoid
What are the 4 ventricles of the brain
- 2 lateral ventricles
- 3rd ventricle
- Aqueduct of sylvius
The ___ and ___ are suspended in the CSF
Brain and spinal cord
The ____ fills the ventricles and the subarachnoid space
Cerebral spinal fluid
Where is the cerebral spinal fluid made
Choroid plexus
The lateral ventricles each have 4 parts- what are they
- Anterior horn (frontal lobe)
- Body (parietal lobe)
- Posterior horn (occipital lobe)
- Inferior horn (temporal lobe)
Where is the 3rd ventricle located
Diencephalon
Where is the 4th ventricle
Lower pons and the upper medulla
In the fourth ventricle, the _____ leaves the ventricle and enters the cisterns magna
Cerebral spinal fluid
The cerebrospinal fluid circulation
Lateral ventricles -> third ventricle -> aqueduct of Sylvia’s -> fourth ventricle –> via foramina of Luschka and magendie –> subarachnoid space–> cerebral and spinal circulation
(Goes back up from the cerebral and spinal area)
Obstruction to the CSF flow will lead to
- Back up in the CSF and increased interacranial pressure
2. Papilledema/choked disc
What are the three types of hydrocephalus
- Obstructive
- Communicating
- Compensating
Obstruction of the CSF can be caused by
- Tumor
- Structured anomalies
- Inflammatory process
T/F hydrocephalus is untreatable
False; treatable
-drain excess fluid or ventriculoperitoneal (VP) shunt
