Is the corpus callosum the lateral ventricle?
The corpus callosum forms the roof of the lateral ventricles. The thalamus is posteroinferior to the body of the lateral ventricles. The choroid plexus consists of ependymal cells that produce cerebrospinal fluid (CSF) and lie at the floor of the lateral ventricles.
What is the function of the anterior horn of the lateral ventricle?
Anterior or frontal horn of the lateral ventricles: The corpus callosum’s genu and rostrum help to shut it off on the anterior end. The far more anterior portion of the corpus callosum trunk forms the roof, whereas the top of the caudate nucleus forms the floor.
What does anterior horn of lateral ventricle mean?
Anterior horns of lateral ventricle The anterior horn connects to the third ventricle, via the interventricular foramen. This portion of the lateral ventricle impinges on the frontal lobe, passing anteriorly and laterally, with slight inclination inferiorly.
What walls of the anterior horn of the lateral ventricle forms the corpus callosum?
The anterior wall and roof are formed by the genu of the corpus callosum, and the floor is formed by the rostrum. The head of the caudate nucleus forms the lateral wall.
Where is the anterior horn of the lateral ventricle?
The anterior (frontal) horn of the lateral ventricle lies anterior to the central part, from which it is separated by an imaginary vertical line that runs at the level of the interventricular foramen. This extension is triangular in cross section and has a roof, floor and medial wall.
What are brain ventricles?
The ventricles of the brain are a communicating network of cavities filled with cerebrospinal fluid (CSF) and located within the brain parenchyma. The ventricular system is composed of 2 lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle (see the images below).
What separates the lateral ventricles of the brain?
The 2 lateral ventricles are separated from each other by a thin vertical sheet of nervous tissue called septum pellucidum covered on either side by ependyma. It communicates with the third ventricle through the interventricular foramen of Monro.
What does the lateral ventricle do in the brain?
The function of the ventricles is to house the cerebrospinal fluid (CSF) and provide the passage for its circulation.
What forms the walls of the lateral ventricle?
The frontal horn (Fig 1) extends anteriorly from the foramina of Monro and communicates with the body of the lateral ventricles posteriorly. The anterior wall and roof are formed by the genu of the corpus callosum, and the floor is formed by the rostrum. The head of the caudate nucleus forms the lateral wall.
What happens if your corpus callosum is damaged?
Lesions of any part of the corpus callosum might lead to loss of contact between bilateral hemispheres that cause mental disorders, pseudobulbar palsy, speech and movement ataxia.
Where does the medial wall of the corpus callosum meet?
Posteriorly, the body reaches the splenium of the corpus callosum. It is triangular in cross section and has a roof, floor, and a medial wall; the roof and floor meeting on the lateral aspects. The medial wall is formed by the septum pellucidum and by the body of the fornix, which is common to two lateral ventricles.
Where is the central part of the lateral ventricle located?
The central part of the lateral ventricle is elongated anteroposteriorly. Anteriorly, it becomes continuous with the anterior horn at the level of the interventricular foramen. Posteriorly, the body reaches the splenium of the corpus callosum.
How is MRI used to diagnose corpus callosum lesions?
MRI provides more detailed information regarding tissue structure and composition, using various pulse excitation sequences, such as FLAIR, to distinguish abnormal signal in the corpus callosum from adjacent CSF in the lateral ventricles.
Is the corpus callosum an important part of the brain?
The corpus callosum is a large white matter tract that connects the two hemispheres of the brain. It is an incredibly important structural and functional part of the brain. It allows us to perceive depth and enables the two sides of our brain to communicate.
