What is trigone of lateral ventricle?
The trigone of the lateral ventricle is the area where the part of the body forms a junction with the inferior horn and the posterior horn. This area is referred to as the atrium of the lateral ventricle, and is where the choroid plexus is enlarged as the choroid glomus.
Which part of lateral ventricle does contain Calcar Avis?
The occipital horn curves posteriorly and medially from the atrium and varies in size. The tapetum forms the roof and lateral wall and separates it from the optic radiations. The collateral trigone forms the floor. Similar to the atrium, the bulb of the corpus callosum and calcar avis form the medial wall.
What are the two lateral ventricles of the brain?
Lateral ventricles are two c-shaped cavities one on each side of cerebral hemisphere. It consists of a central part called body and three extensions: anterior (frontal horn), posterior (occipital horn), and inferior (temporal horn).
What is brain trigone?
The trigone of the lateral ventricle is an area of the lateral ventricle at the confluence of the occipital and temporal horns.
What is the Calcar Avis?
The Calcar avis is a mound of white matter formed by the development of the calcarine fissure. This fissure begins to develop at 16 weeks of gestation and extends progressively deeply from the medial aspect of the occipital lobe towards the occipital horn of the lateral ventricles.
Which parts of lateral ventricle do contain plexus Choroideus?
The choroid plexus resides in the innermost layer of the meninges (pia mater) which is in close contact with the cerebral cortex and spinal cord. It is a highly organized tissue that lines all the ventricles of the brain except the frontal/occipital horn of the lateral ventricles and the cerebral aqueduct.
What causes lateral ventricular enlargement?
Enlargement of the ventricles may occur for a number of reasons, such as loss of brain volume (due to conditions such as cortical atrophy, traumatic brain injury, or cerebral vascular accident), impaired outflow, or absorption of cerebrospinal fluid from the ventricles.
What causes enlargement of lateral ventricles?
Summary. Hydrocephalus is the abnormal enlargement of the brain cavities (ventricles) caused by a build-up of cerebrospinal fluid (CSF). Hydrocephalus can be caused by problems with CSF secretion, CSF flow or CSF absorption.
What do the lateral ventricles of the brain do?
The right and left lateral ventricles are structures within the brain that contain cerebrospinal fluid, a clear, watery fluid that provides cushioning for the brain while also helping to circulate nutrients and remove waste.
What are lateral recess of fourth ventricle?
The lateral recess is a projection of the fourth ventricle which extends into, or rather below, the inferior cerebellar peduncle of the brainstem.
What is the Calcarine sulcus?
a deep sulcus that starts in the temporal lobe and continues into the occipital lobe. The primary visual cortex is found along the banks of the calcarine sulcus.
What is the Choroids plexus where is it located Give its function?
The choroid plexus (ChP) is a secretory tissue found in each of the brain ventricles, the main function of which is to produce cerebrospinal fluid (CSF).
Should I worry about mild ventriculomegaly?
Confirmation that mild ventriculomegaly is isolated increases the likelihood that long-term neurodevelopment will be normal, and identification of other CNS malformations makes it more likely that the fetus will have neurologic abnormalities, including developmental delay.