My Neuroanatomy Behavioral Neurosciences > Exam 1: Ventricles and Cerebrospinal Fluid > Flashcards

Exam 1: Ventricles and Cerebrospinal Fluid Flashcards

•Recall the material covered in Gross Anatomy concerning circulation, CSF and meninges. •Identify the components of the ventricular system and adjacent brain structures. •Identify the cisterns around the brain in brain slices or MRI/CT images. •Compare the composition of CSF to blood. •List the general functions of the structures that surround the ventricles.

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Q

A subdural hemorrhage is caused by bleeding between which two layers of meninges?

A. Arachnoid mater; endosteal layer of the dura mater

B. Endosteal layer of the dura mater; pia mater

C. Meningeal and endosteal layers of the dura mater

D. Meningeal layer of the dura mater; Arachnoid mater

E. Pia mater; arachnoid mater

F. Pia mater; meningeal layer of the dura mater

A

Answer to flip side Question:

D.

Meningeal layer of the dura mater; Arachnoid mater

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Q

What connects the third and fourth ventricles?

A. Central canal

B. Cerebral aqueduct

C. Interventricular foramen

D. Lateral aperture

E. Median aperture

A

Answer to flip side Question:

B.

Cerebral aqueduct

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Q

Identify the landmark

A

Body

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Q

Identify the landmark

A

Trigone (atrium)

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Q

Identify the landmark

A

Posterior horn

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Q

Identify the landmark

A

Inferior horn

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Q

Identify the landmark

A

Anterior horn

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Q

Identify the landmark

A

Corpus callosum

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Q

Identify the landmark

A

Septum pellucidum

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Q

Identify the landmark

A

Caudate nucleus

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Q

Identify the landmark

A

Caudate nucleus

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Q

Identify the landmark

A

Corpus callosum

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Q

Identify the landmark

A

Septum pellucidum

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Q

Identify the landmark

A

Fornix

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Q

Identify the landmark

A

Thalamus

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Q

Identify the landmark

A

Inferior horn

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Q

Identify the landmark

A

Tail of caudate nucleus

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Q

Identify the landmark

A

Hippocampus

* Hippocampus is an area of infolding. tip to help me remember… hippos are heavy, and thats what caused it to fold *

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Q

Identify the landmark

A

Amygdaloid body

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Q

Identify the landmark

A

Hippocampal commissure

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Q

Identify the landmark

A

Optic radiations

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Q

Identify the landmark

A

Splenium of corpus callosum

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Q

Identify the landmark

A

Hippocampus

* Hippocampus is an area of infolding. tip to help me remember… hippos are heavy, and thats what caused it to fold *

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Q

Identify the landmark

A

Glomus choroideum

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Identify the landmark

Optic radiations

Identify the landmark

Third Ventricle

Identify the landmark

Hypothalamus

Identify the landmark

Thalamus

Identify the section of the Ventricles where this was sliced using the landmarks

Anterior Horn

Identify the section of the Ventricles where this was sliced using the landmarks

Body

Identify the section of the Ventricles where this was sliced using the landmarks

Inferior horn

Identify the section of the Ventricles where this was sliced using the landmarks

Atrium

Identify the section of the Ventricles where this was sliced using the landmarks

Posterior horn

Identify the ventricle found in this area

Third Ventricle

Identify the landmark

Anterior commissure

Identify the landmark

Interventricular foramen

Identify the landmark

Fornix

Identify the landmark

Pineal gland

Identify the landmark

Posterior commissure

Identify the landmark

Midbrain

Identify the landmark

Cerebral aqueduct

Identify the landmark

Thalamus

Identify the landmark

Mamillary bodies

Identify the landmark

Hypothalamus

Identify the landmark

Lamina terminalis

Identify the ventricle found in this area

Fourth Ventricle

Identify the landmark

Medullary velum Medical Definition of velum: a membrane or membranous part resembling a veil or curtain

Identify the landmark

Tela choroidea

Identify the landmark

Median aperture (foramen of Magendie)

Identify the landmark

Rhomboid fossa (Floor of 4th ventricle)

Identify the landmark

Lateral apertures (foramina of Lushka)

Identify the landmark

Lateral recesses

Identify the landmark

Superior cerebellar peduncles Definition of peduncle: a stemlike connecting part Medical Definition of peduncle: a collection of nerve fibers connecting between different regions in the central nervous system

**3** components of: **Basal Ganglia** Function of: **Basal Ganglia**

The basal ganglia consists of: **Putamen**, **caudate**, and **globus pallidus** The basal ganglia: controls **starting** and **stopping** of **movement**

Function of: ## Footnote **Amygdala**

**Fear**

The **Hippocampus** is part of the _____ system and is responsible for _____ \_\_\_\_\_ memory

The **Hippocampus** is part of the **limbic system** and is responsible for **short term** memory

The **Fornix** is that **tract that connects** the _____ to the \_\_\_\_\_, including the _____ \_\_\_\_\_.

The **Fornix** is that tract that **connects** the **hippocampus** to the **diencephalon**, including the **mammillary bodies.**

Identify the landmark

Head of caudate

Identify the landmark

Putamen

Identify the landmark

Body of caudate

Identify the landmark

Cellular bridges

Identify the landmark

Lateral Ventricle

Identify the landmark

Tail of caudate

Identify the landmark

Amygdala

Identify the landmark

Nucleus accumbens

Identify the landmark

Thalamus

Identify the landmark

Globus pallidus, internal segment

Identify the landmark

Globus pallidus, external segment

Identify the landmark

Fornix

Understand the landmarks around the **hippocampus** and how they connect.

Understand the landmarks around the **hippocampus** and how they connect.

Identify the landmark

Ambient cistern

Identify the landmark

Cerebellopontine

Identify the landmark

Lateral cerebellomedullary cistern

Identify the landmark

Cisterna magna

Identify the landmark

Premedullary cistern

Identify the landmark

Prepontine cistern

Identify the landmark

Interpeduncular cistern

Identify the landmark

Paracallosal cistern

Identify the landmark

Quadigeminal cistern

CSF would exit through the median aperture (foramen of Magendie) into which cistern? A. Ambient cistern B. Cisterna magna C. Paracallosal cistern D. Prepontine cistern E. Quadrigeminal cistern

Answer to flip side Question: B. Cisterna magna

**_Production of CSF_****:** **Normal CSF volume**: about \_\_\_-\_\_\_ ml It is **formed at a rate of** about ___ ml/**min** (\_\_\_-\_\_\_ ml/**day**) → total pool of **CSF is replaced** ___ to ___ times/**day** **Normal CSF contains** only ___ to ___ **cells (leukocytes) per ml**

**_Production of CSF_****:** **Normal** CSF volume: about **120-150 ml** It is **formed at** a rate of about **0.5 ml/min** (**450-500 ml/day**) → total pool of CSF is **replaced 3 to 4 times/day** Normal CSF contains **only 1 to 5 cells (leukocytes) per ml**

**_Reabsorption of CSF_:** **Reabsorbed through** _____ \_\_\_\_\_ and returned to mostly the _____ \_\_\_\_\_ sinus. Most of the CSF is **transported** through vesicles **across the cells that line** the _____ \_\_\_\_\_. The **CSF flow** is **dependent on** the _____ **hydrostatic pressure** of **CSF** compared to **venous blood**.

**_Reabsorption of CSF_****:** Reabsorbed through **arachnoid granulations (villi)** and returned to mostly the **superior sagittal sinus**. Most of the CSF is transported through vesicles across the cells that line the **arachnoid granulations**. The CSF flow is dependent on the **higher hydrostatic pressure of CSF compared to venous blood**.