Baby Brain

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1

Anterior Fontanelle

unossified, soft, membrane covered space between the sutures of the skull, at the top of the head

2

aqueduct of sylvius

a small channel for the passage of cerebrospinal fluid between the third and fourth ventricles

3

arachnoid matter

middle layer of three meningeal protective and supportive tissues surrounding the brain and spinal cord

4

Basal Ganglia

collection of structures coordinating movement; located in the telencephalon "forebrain"

5

Brainstem

consists of the midbrain, pons, and medulla oblongata, which provide a pathway for ascending and descending fiber tracts. Involved with viatal body functions such as breathing and heart rate.

6

cuadate nucleus

forms the inferiolateral margin of the lateral ventricle's anterior horns. represents the more superior aspect of the gray matter of the basal ganglia, a group of structures coordination movemen; located in the telencephalon "forbrain"

7

Cavum Septum Pellucidum

small cavity filled with cerebrospinal fluid that filters from the ventricles through the septal laminae. has no connection or communication with the ventricular system. does communicate with septum verga. situated between the frontal horns of the lateral ventricles, closes before birth.

8

Cavum septum vergae

small cavity filled with cerebrospinal fluid that filters from the ventricles through the septal laminae. has no connection or communication with the ventricular system. does communicate with cavum septum pellucidum. situated between the bodies of the lateral ventricles. closes at the beginning of the 6th month of gestation.

9

Central Fssure

separates the frontal and parietal brain lobes

10

cerebellum

second largest portion of the brain. occupies most of the posterior fossae. inferior to the tentorium and posterior to the pons and medulla oblongata. composed of symetrical, bilateral hemispheres connected by the vermis, its medial portion. responsible for motor coordination and maintaining posture and equilibrium

11

Central Cortex

an apporoximately 2mm thick, convoluted layer of gray matter covering each hemisphere of the cerebrum. responsible for balancing information from different sources to maintain cognitive funtion.

12

Cerebral Hemispheres

two identical, symmetrical right and left halves of the cerebrum that fill the superior cranial vault. Together they make up the cerebrum, the largest portion of the brain.

13

Cerebrospinal Fluid

a clear liquid produced daily by the choroid plexi that continually circulates through the ventricles and subarachnoid space to distribute nutrients and serve as a shock absorber against injury for the brain and spinal cord.

14

Cerebrum

largest portion of the brain. divided into two identical right and left hemispheres that communicate through a neural bridge the corpus collosum. controles cognitive and motor funtion

15

Choroid plexus

special blood vessels located in the ventricles that produce cerebrospinal fluid

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circle of willis

intercranial arterial conglomeration of anastomotic of communicating collateral vessels located near the base of the brain.

17

Cisterna magna

largest expanded subarachnoid space in the brain. filled with cerebrospinal fluid. located at the base of the cerebellum in the posterior poriton of the brain.

18

Corpus Callosum

A "neural bridge" or network of nerve fibers through which the cerebral hemispheres communicate

19

Cranium

protective bony vault of the skull; consists of eight bones: one frontal, one occipital, one ethmoid, one spehenoid, two temporal, two parietal.

20

Diencephalon

part of the midbrain; located just inferior to the corpus callosum. encloses the third ventricleand includes the thalmus, hypothalmus, and epithalmus

21

Dura Matter

outer layer of three meningeal protective and supportive tissues surrounding the brain and spinal cord

22

Epithalmus

situated in the anteriorsuperior portion of the diencephalon. contains the choroid plexus of the third ventricle and the pineal gland

23

Falx Cerebri

double fold of dura mater that lies in the interhemispheric fissure

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foramen of Magendie

The middle of three holes on the floor of the fourth ventricle providing passage of cerebrospinal fluid directly into the subarachnoid space

25

Foramen of Monro

Bilateral foramina that lie inferomedial to the bodies of the lateral ventricles and mark the communication between the lateral and third ventricles.

26

Foramina of Luschka

the lateral two of three holes on the floor of the fourth ventricle providing passage of cerebrospinal fluid directly into the subarachnoid space.

27

Fourth Ventricle

one of four brain cavities containing cerebrospinal fluid. located below and connected to the third ventricle by a small channel, the aqueduct of sylvius, a narrow opening for the passage of cerebrospinal fluid. directs cerebrospinal fluid into the subarachnoid space through the foramen of Magendie and foramina of Luschka, three small holes in the floor of the fourth ventriclle

28

Frontal Lobe

most anterior brain lobe of the cerebral cortex. contains sensory receptors involved with speech, movement, emotions, and problem solving

29

Germinal Matrix

composed of a fine tetwork of blood vessels and neural tissue. Highly susceptible to hemorrhage in the premature infant

30

Gyrus

Elevated or convoluted fold on the surface of the cerebral hemispheres separated by sulci or fissures

31

Hypothalmus

Diencephalon structure located just inferior to the thalmus at the base of the brain. composed of several different areas, even though it is just the size of a pea. communicates directly with the pituitary gland

32

Interhemispheric Fissure

dep groove or indentation separating the right and left cerebral hemispheres. contains the falx cerebri

33

Lateral Ventricles

Cerebrospinal fluid filled cavities within each cerebral hemisphere. Lie just below the corpus callosum and are separated from each other by the septum pellucidum, a thin partition. each lateral ventricle is divided segmentally into a frontal horn, body, occipital horn, and temporal horn

34

Medualla Oblongata

Extends inferiorly from the pons to form the inferior portion of the brainstem that projects out of the skull through the foramen magnum (a large opening in the posterion protion of the occipital bone of the skull_ and connects to the spinal cord

35

Midbrain

Superioir portion of the brainstem situated where the crebellum and pons unite.

36

Occipital Lobe

Cerebral brain lobe located posteriorly inthe brain. involved with vision.

37

Parietal Lobe

cerbral brain lobe located posterior to the frontal cortex. contains the body's sensory receptors. which interpret the impulses that allow one to recognize sensations such as pain, cold or a light touch

38

Pia Mater

innermost layer of three meningeal protective and supportive tissues surrounding the brain and spinal cord. Adjacent to the brain and spinal cord surfaces

39

Pons

Middle portion of the brainstem situated at the midline, anterior to and between the biliateral cerebellar hemispheres. it is inferior to the midbrain and superior to the medulla oblongata, to which it is directly connected.

40

Subarachnoid Space

space between the arachnoid mater and pia mater containing cerebrospinal fluid it recieves from the fourth ventricle

41

Sulcus

trench or groove separating hte gyri on the surface of the brain

42

Sylvian/Lateral Fissure

groove or indentation separating the frontal and temporal brain lobes.

43

Temporal Lobe

Cerebral brain lobe located inferior to the frontal and parietal lobes. involved in recognintion and perception.

44

Tentorium

flap dura mater that separates the cerebral hemispheres from the superion structures in the brain.

45

Thalmi

a pair of large, symmetrical, ovoid organs situated one on either side of the third venttricle, ofrming most of its lateral walls. together, they compose the largest portion of the diencephalon

46

Third Ventricle

one of four brain cavities containing cerebrospinal fluid. located below and connected to each lateral ventricle by the foramen of Monro, A narrow opening for the passage of cerebrospinal fluid

47

Trigone

region of the lateral ventricles where the bodies, occipital horns and temporal horns converge

48

Vermis

medial portion of the cerebellum. Connects cerebellar hemispheres.


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