Structures of brain (CNS) development

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9 Terms

1
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<p><span>Transverse sections of the telencephalon and diencephalon of a human embryo of 39 days and between 49 and 52 days old, respectively</span></p>

Transverse sections of the telencephalon and diencephalon of a human embryo of 39 days and between 49 and 52 days old, respectively

  1. lateral ventricles

  2. lamina terinalis

  3. third ventricle

  4. interventricular foramen

  5. cerebral hemisphere

  6. choroid fissure

  7. choroid plexus

  8. hypothalamic sulcus

  9. hypothalamus

  10. neurohypophysis

2
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<p><span>Transverse section of a 56-day old human embryo in which the telencephalon, diencephalon and myelencephalon are visible</span></p>

Transverse section of a 56-day old human embryo in which the telencephalon, diencephalon and myelencephalon are visible

  1. hippocampus

  2. corpus striatum

  3. third ventricle

  4. hypothalamus

  5. lateral ventricle

  6. chroid plexus

  7. choroid fissure

  8. caudate nucleus

  9. internal capsule

  10. lentiform nucleus

  11. myelencephalon

3
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<p><span>Transverse section of a 15-days old rat embryo. The <strong>myelencephalon</strong>, <strong>diencephalon </strong>and <strong>telencephalon </strong>are visible</span></p>

Transverse section of a 15-days old rat embryo. The myelencephalon, diencephalon and telencephalon are visible

  1. lateral ventricle

  2. telencephalon

  3. third ventricle

  4. fourth ventricle

  5. myelencephalon

  6. epithalamus

  7. thalamus

  8. hypothalamus

  9. choroid plexus

  10. hypothalamus plexus

4
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<p><span>Transverse section through an 11-days old mouse embryo in which the telencephalon, diencephalon and myelencephalon are visible. <strong>The cut-out shows the two main structures of the developing pituitary in more detail</strong></span></p>

Transverse section through an 11-days old mouse embryo in which the telencephalon, diencephalon and myelencephalon are visible. The cut-out shows the two main structures of the developing pituitary in more detail

  1. telencephalon

  2. lateral ventricles

  3. diencephalon

  4. third ventricles

  5. myelencephalon

  6. fourth ventricle

A. infundibulum

B. Rathke’s pouch

5
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<p>Three<span> </span>transverse<span> </span>sections<span> </span>of<span> </span>the<span> </span>developing<span> </span>human<span> </span>eye<span> </span>at<span> </span><strong>days</strong><span><strong> </strong></span><strong>33,</strong><span><strong> </strong></span><strong>39</strong><span><strong> </strong></span><strong>and</strong><span><strong> </strong></span><strong>49</strong><span><strong> </strong></span>post-<span>fertilization.</span></p>

Three transverse sections of the developing human eye at days 33, 39 and 49 post-fertilization.

  1. optic stalk

  2. intraretinal space

  3. inner layer of the optic cup

  4. outer layer of the optic cup

  5. lens vesicle

  6. optic cup cavity

  7. neural layer of retina

  8. pigmented layer of retina

  9. primary lens fibers

6
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<p>Transverse section of the mesencephalon and metencephalon of a human embryo of between 49 and 52 days old.</p>

Transverse section of the mesencephalon and metencephalon of a human embryo of between 49 and 52 days old.

  1. fourth ventricle

  2. rhombic lip

  3. cerebral preduncle

  4. tegmentum

  5. tectum

  6. aqueduct of sylvius (mesocoel)

  7. sulcus limitans

  8. metencephalon

7
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<p>Transverse section of the <strong>mesencephalon </strong>and <strong>metencephalon</strong><span><strong> </strong></span>of<span> </span>a<span> </span>human<span> </span>embryo<span> </span>of<span> </span>between<span> </span>49<span> </span>and<span> </span>52 days old.</p>

Transverse section of the mesencephalon and metencephalon of a human embryo of between 49 and 52 days old.

  1. fourth ventricle

  2. rhombic lip

  3. cerebral peduncle

  4. tegmentum

  5. tectum

  6. aqueduct of Sylvius

  7. sulcus limitans

  8. metencephalon

8
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<p><span>The illustrations represent three different stages in metencephalon development.</span></p>

The illustrations represent three different stages in metencephalon development.

  1. roof plate

  2. sulcus limitans

  3. alar plate

  4. basal plate

  5. floorplate

  6. ventricular/ependymal zone

  7. choroid plexus

  8. ependymal roof

  9. ependymal roof

  10. rhombic lips

9
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<p><span>Shown is a transverse section of a 14-day old rat embryo. The telencephalon, diencephalon and myelencephalon are visible. Name the numbered structures.</span></p>

Shown is a transverse section of a 14-day old rat embryo. The telencephalon, diencephalon and myelencephalon are visible. Name the numbered structures.

  1. lateral ventricle

  2. choroid plexus

  3. hypothalamic sulcus

  4. myelencephalon

  5. future epiphysis

  6. third ventricle

  7. fourth ventricle

  8. ependymal roof

  9. epithalamus

  10. thalamus

  11. hypothalamus

  12. telencephalon