The Fetal Head and Brain Vocabulary Flashcards
An opening in a structure
Aperture
Nodular structures located along the falx cerebri that reabsorb cerebrospinal fluid into the venous system; also referred to as arachnoid villi
Arachnoid Granulations
The middle layer of the meninges
Arachnoid Membrane
The lower part of the brain composed of the pons, midbrain, and medulla oblongata
Brain Stem
A normal midline brain structure identified in the anterior portion of the brain between the frontal horns of the lateral ventricles
Cavum Septum Pellucidum
The ratio used for assessing fetal head shape
Cephalic Index
The portion of the cerebellum, located within the midline of the brain, that connects its two hemispheres
Cerebellar Vermis
The duct that connects the third ventricle of the brain to the fourth ventricle; also referred to as the aqueduct of Sylvius
Cerebral Aqueduct
Paired structures located anterior to the cerebral aqueduct
Cerebral Peduncles
The protective and nourishing fluid of the brain and spinal cord produced by the cells of the choriod plexus
Cerebrospinal Fluid
Specialized cells within the ventricular system responsible for cerebrospinal fluid production
Chorios Plexus
A prominent space within the skull that contains cerebrospinal fluid; a cistern that is created by the separation of the arachnoid membrane of the pia mater
Cistern
The largest cistern in the skull; located in the posterior portion of the skull
Cisterna Magna
A thick band of white matter that provides communication between the right and left halves of the brain
Corpus Callosum
Represents the biparietal diameter of a standard-shaped fetal head with the same cross-sectional area
Corrected-BPD
The premature closure of the cranial sutures with subsequent fusion of the cranial bones
Craniosynostosis
The dense, fibrous outer layer of the meninges
Dura Mater
The lining of the ventricles within the brain
Ependyma
The features or appearance of the face
Facies
A double fold of dura mater located within the midline of the brain
Falx Cerebri
A vitamin that has been shown to significantly reduce the likelihood of neural tube defects; also referred to as folic acid
Folate
The opening in the base of the skull through which the spinal cord exists
Foramen Magnum
A group of thin-walled blood vessels and cells within the subependymal layer of the fetal brain responsible for brain cell migration during fetal development
Germinal Matrix
The largest part of the choroid plexus
Glomus
Folds in the cerebral cortex
Gyri
A shortage of oxygen or decreased oxygen in the blood
Hypoxia
Groove within the midline of the brain that divides the two cerebral hemispheres
Interhemispheric Fissure
The mass of tissue, located in the third ventricle within the midline of the brain, which connects the two lobes of the thalamus; also referred to as the massa intermedia
Interthalamic Adhesion
The coverings of the brain and spinal cord
Meninges
The primary brain vesicle also referred to as the midbrain; it eventually becomes the cerebral peduncles, quadrigeninal plate, and cerebral aqueduct
Mesencephalon
Normal head shape
Mesocephalic
The early embryologic structure that develops into the central nervous nervous system
Neural Plate
Embryologic formation that results from fusion of the two folded ends of the neural plate
Neural Tube
The functional part of an organ
Parenchyma
The innermost layer of the meninges
Pia Mater
The primary brain vesicle also referred to as the forebrain; it eventually becomes the lateral ventricles, cerebral hemispheres, third ventricle, thalamus, hypothalamus, pineal gland, pituitary gland
Prosencephalon
The primary brain vesicle, also referred to as the hindbrain; it eventually becomes the cerebellum, pons, medulla oblongata, and fourth ventricle
Rhombencephalon
An area located between the arachnoid membrane an d pia mater
Subarchnoid Space
The area just beneath the ependymal lining the lateral ventricles
Subependymal Layer
Grooves within the brain
Sulci
A flexible, connective tissue that lies beneath the cranial bones
Suture
A brain structure that allows communication between the senses; also performing many other functions
Thalamus
