The Fetal Head and Brain Vocabulary

Question 1

An opening in a structure

Answer 1

Aperture

Question 2

Nodular structures located along the falx cerebri that reabsorb cerebrospinal fluid into the venous system; also referred to as arachnoid villi

Answer 2

Arachnoid Granulations

Question 3

The middle layer of the meninges

Answer 3

Arachnoid Membrane

Question 4

The lower part of the brain composed of the pons, midbrain, and medulla oblongata

Answer 4

Brain Stem

Question 5

A normal midline brain structure identified in the anterior portion of the brain between the frontal horns of the lateral ventricles

Answer 5

Cavum Septum Pellucidum

Question 6

The ratio used for assessing fetal head shape

Answer 6

Cephalic Index

Question 7

The portion of the cerebellum, located within the midline of the brain, that connects its two hemispheres

Answer 7

Cerebellar Vermis

Question 8

The duct that connects the third ventricle of the brain to the fourth ventricle; also referred to as the aqueduct of Sylvius

Answer 8

Cerebral Aqueduct

Question 9

Paired structures located anterior to the cerebral aqueduct

Answer 9

Cerebral Peduncles

Question 10

The protective and nourishing fluid of the brain and spinal cord produced by the cells of the choriod plexus

Answer 10

Cerebrospinal Fluid

Question 11

Specialized cells within the ventricular system responsible for cerebrospinal fluid production

Answer 11

Chorios Plexus

Question 12

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

Answer 12

Cistern

Question 13

The largest cistern in the skull; located in the posterior portion of the skull

Answer 13

Cisterna Magna

Question 14

A thick band of white matter that provides communication between the right and left halves of the brain

Answer 14

Corpus Callosum

Question 15

Represents the biparietal diameter of a standard-shaped fetal head with the same cross-sectional area

Answer 15

Corrected-BPD

Question 16

The premature closure of the cranial sutures with subsequent fusion of the cranial bones

Answer 16

Craniosynostosis

Question 17

The dense, fibrous outer layer of the meninges

Answer 17

Dura Mater

Question 18

The lining of the ventricles within the brain

Answer 18

Ependyma

Question 19

The features or appearance of the face

Answer 19

Facies

Question 20

A double fold of dura mater located within the midline of the brain

Answer 20

Falx Cerebri

Question 21

A vitamin that has been shown to significantly reduce the likelihood of neural tube defects; also referred to as folic acid

Answer 21

Folate

Question 22

The opening in the base of the skull through which the spinal cord exists

Answer 22

Foramen Magnum

Question 23

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

Answer 23

Germinal Matrix

Question 24

The largest part of the choroid plexus

Answer 24

Glomus

Question 25

Folds in the cerebral cortex

Answer 25

Gyri

Question 26

A shortage of oxygen or decreased oxygen in the blood

Answer 26

Hypoxia

Question 27

Groove within the midline of the brain that divides the two cerebral hemispheres

Answer 27

Interhemispheric Fissure

Question 28

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

Answer 28

Interthalamic Adhesion

Question 29

The coverings of the brain and spinal cord

Answer 29

Meninges

Question 30

The primary brain vesicle also referred to as the midbrain; it eventually becomes the cerebral peduncles, quadrigeninal plate, and cerebral aqueduct

Answer 30

Mesencephalon

Question 31

Normal head shape

Answer 31

Mesocephalic

Question 32

The early embryologic structure that develops into the central nervous nervous system

Answer 32

Neural Plate

Question 33

Embryologic formation that results from fusion of the two folded ends of the neural plate

Answer 33

Neural Tube

Question 34

The functional part of an organ

Answer 34

Parenchyma

Question 35

The innermost layer of the meninges

Answer 35

Pia Mater

Question 36

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

Answer 36

Prosencephalon

Question 37

The primary brain vesicle, also referred to as the hindbrain; it eventually becomes the cerebellum, pons, medulla oblongata, and fourth ventricle

Answer 37

Rhombencephalon

Question 38

An area located between the arachnoid membrane an d pia mater

Answer 38

Subarchnoid Space

Question 39

The area just beneath the ependymal lining the lateral ventricles

Answer 39

Subependymal Layer

Question 40

Grooves within the brain

Answer 40

Sulci

Question 41

A flexible, connective tissue that lies beneath the cranial bones

Answer 41

Suture

Question 42

A brain structure that allows communication between the senses; also performing many other functions

Answer 42

Thalamus