PRE-LAB Activity 3: Identifying the Meninges/Ventricles and Tracing the Flow of

Question

PRE-LAB Activity 3: Identifying the Meninges/Ventricles and Tracing the Flow of Cerebrospinal Fluid 1. Match each of the following brain structures with its description a. dura mater b, pia mater c- arachnoid mater d. first and second ventricles e. apertures f. superior sagittal sinus 1. connect the lateral ventricles and the third ventricle 2. middle meninx 3. structure that projects through dura mater into arachnoid mater 4. passageway for cerebrospinal fluid between fourth ventricle and --, subarachnoid space 5 ventricle associated with the diencephalon 6. outermost meninx 7. lateral ventricles 8. meninx that follows every convolution of brain 9. connects third ventricle and fourth ventricle 10. ventricle located between brainstem and cerebellum 11. collects venous blood and cerebrospinal fluicd 12. located between the arachnoid mater and the pia mater - _ g, fourth ventricle h. cerebral aqueduct i. third ventricle arachnoid villus k. subarachnoid space l. interventricular foramina

Explanation / Answer

A) 6

B)8

C)2

D)7

E)4

F)11

G)10

H)9

I)5

J)3

K)12

L)1

- Meninges covering brain are 3

. outermost duramater

. middle arachnoid mater

. innermost pia mater whuch moves with every. convulusion of brain.

- And ventricles are 4

. lateral ventricles which are first and second.

3rd ventricle which is associated with diencephalon.

4th ventricle present between brainstem and cerebellum.

-. Connections:

. interventricular foramina connects between lateral and third ventricle.

. cerebral aqueduct of sylvius connects between 3rd and 4th ventricle.

. subarachnoid space present between arachnoid and pia mater.

. arachnoid villus projects through duramater into arachnoid space.

- CSF flow:

. apertures_ they are structures which are for passage of CSF between 4th ventricle and subarachnoid space.

- Superior sagittal sinus: collects venous blood and CSF.

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