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Related Concept Videos

Anatomy of the Brain: Ventricles01:18

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There are hollow fluid-filled cavities known as ventricles deep inside the human brain. There are two lateral ventricles, one in each cerebral hemisphere, and each has three different projections — the anterior, inferior, and posterior horns visible from the lateral side. A thin membrane called the septum pellucidum separates the two lateral ventricles. The slender third ventricle in the diencephalon is connected to each lateral ventricle via a channel called the interventricular foramen.
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Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
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The brain is the most complex organ in the human body. It consists of four main parts: the cerebrum, diencephalon, cerebellum, and brainstem.
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Cerebrum: Anatomical Overview I01:26

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The main and largest component of the human brain is the cerebrum. The cerebrum consists of two main parts: the cerebral cortex, an outer layer with wrinkles or folds known as gyri and shallow grooves called sulci, and a deeper region beneath it. The cerebrum divides into two distinct hemispheres and contains five different lobes: the frontal, parietal, temporal, occipital, and insula. The central sulcus separates the frontal and parietal lobes and two functionally important gyri — the...
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Cerebellum: Anatomical Regions01:17

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The cerebellum, also known as the "little brain," is located in the posterior cranial fossa, inferior to the tentorium cerebelli and dorsal to the brainstem. It plays a significant role in motor control, coordination, and proprioception.
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Organization of the Brain

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The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
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Updated: Sep 4, 2025

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Fetal Brain Anatomy.

Carolina V A Guimaraes1, Hisham M Dahmoush2

  • 1Division Chief of Pediatric Radiology, Department of Radiology, University of North Carolina, School of Medicine, 2006 Old Clinic Building, CB# 7510, Chapel Hill, NC 27599-7510, USA.

Neuroimaging Clinics of North America
|July 17, 2022
PubMed
Summary
This summary is machine-generated.

This review details normal fetal brain development and anatomy. Understanding these changes is crucial for accurately diagnosing central nervous system (CNS) anomalies using MRI.

Keywords:
Fetal MRIFetal brain anatomyFetal brain development

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Area of Science:

  • Neuroscience
  • Radiology
  • Developmental Biology

Background:

  • Fetal brain development is a complex process with well-documented normal changes during gestation.
  • Accurate diagnosis of fetal central nervous system (CNS) anomalies relies on a thorough understanding of normal development.
  • Various imaging modalities, including ultrasound and MRI, are used to evaluate the fetal CNS.

Purpose of the Study:

  • To review the expected normal fetal brain anatomy and development throughout gestation.
  • To highlight the role of MRI as the most accurate modality for parenchymal evaluation and anomaly detection.
  • To discuss additional relevant anatomic structures visualized on fetal brain imaging.

Main Methods:

  • Review of existing literature on fetal brain development and imaging.
  • Compilation of expected anatomical landmarks and developmental milestones.
  • Description of imaging sequences and their utility in assessing fetal brain structures.

Main Results:

  • Detailed description of normal fetal brain anatomy at different gestational ages.
  • Emphasis on the progressive development of key brain structures.
  • Identification of common imaging findings associated with normal development.

Conclusions:

  • A comprehensive understanding of normal fetal brain development is essential for identifying abnormalities.
  • MRI provides superior detail for evaluating fetal brain parenchyma and detecting developmental anomalies.
  • This review serves as a reference for expected findings in fetal brain imaging.