Quadrigeminal plate

Changed by Marcos Gil Alberto da Veiga, 17 Nov 2019

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The quadrigeminal plate, also known as the tectal plate or tectum,~~, is the portion of the~~ ~~midbrain~~ ~~tectum upon which~~ is constituted by the superior and inferior colliculi ~~sit~~.

The tectum is the dorsal portion of the midbrain (brainstem) ~~and is derived in embryonic development~~ , located posteriorly to the mesencephalic aqueduct. It derives from the alar plate of the neural tube during embryonic development. ~~Masses~~

Masses in the region of the tectum can ~~cause obstruction of~~obstruct the cerebral aqueduct resulting in obstructive hydrocephalus.

History and etymology

~~It is derived~~Derives from the Latin word "tectum" meaning "roof".

Vascularization

Vascularization is provided by the collicular (or quadrigeminal) artery. It is a branch of the P1 (sometimes P2) segment of PCA.

Related pathology

-<p>The <strong>quadrigeminal plate</strong>, also known as the <strong>tectal plate</strong> or <strong>tectum</strong>, is the portion of the <a href="/articles/midbrain">midbrain</a> tectum upon which the <a href="/articles/superior-colliculi">superior</a> and <a href="/articles/inferior-colliculi">inferior colliculi</a> sit.</p><p>The tectum is the dorsal portion of the midbrain (<a href="/articles/brainstem">brainstem</a>) and is derived in embryonic development from the alar plate of the <a href="/articles/neural-tube">neural tube</a>. Masses in the region of the tectum can cause obstruction of the <a href="/articles/cerebral-aqueduct-of-sylvius">cerebral aqueduct</a> resulting in <a href="/articles/obstructive-hydrocephalus">obstructive hydrocephalus</a>.</p><h4>History and etymology</h4><p>It is derived from the Latin word "tectum" meaning "roof".</p><h4>Related pathology</h4><ul>
+<p>The <strong>quadrigeminal plate</strong>, also known as the <strong>tectal plate</strong> or <strong>tectum,</strong> is constituted by the <a href="/articles/superior-colliculi">superior</a> and <a href="/articles/inferior-colliculi">inferior colliculi</a>.</p><p>The tectum is the dorsal portion of the midbrain (<a href="/articles/brainstem">brainstem</a>), located posteriorly to the <a title="Cerebral aqueduct (of Sylvius)" href="/articles/cerebral-aqueduct-of-sylvius">mesencephalic aqueduct</a>. It derives <span style="font-size:1.125rem; letter-spacing:0px">from the alar plate of the </span><a style="font-size: 1.125rem; letter-spacing: 0px;" href="/articles/neural-tube">neural tube</a> during <span style="font-size:1.125rem; letter-spacing:0px">embryonic development.</span></p><p>Masses in the region of the tectum can obstruct the <a href="/articles/cerebral-aqueduct-of-sylvius">cerebral aqueduct</a> resulting in <a href="/articles/obstructive-hydrocephalus">obstructive hydrocephalus</a>.</p><h4>History and etymology</h4><p>Derives from the Latin word "tectum" meaning "roof".</p><h4>Vascularization</h4><p>Vascularization is provided by the collicular (or quadrigeminal) artery. It is a branch of the P1 (sometimes P2) segment of <a href="/articles/posterior-cerebral-artery">PCA</a>.</p><h4>Related pathology</h4><ul>

References changed:

3. Gianni Boris Bradac. Cerebral Angiography. (2011) <a href="https://books.google.co.uk/books?vid=ISBN9783642156786">ISBN: 9783642156786</a><span class="ref_v4"></span>

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