Muscles1 - Visceral Structures of the Head and Neck -...

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Visceral Structures of the Head and Neck - Arranged Alphabetically Organ Location/Description Notes anterior median fissure midline fissure on the anterior surface of the spinal cord and medulla anterior spinal artery courses on the superficial surface of the spinal cord in this fissure apex of cuneus portion of the cuneus seen in an inferior view of the cerebral hemisphere contains part of the visual cortex arachnoid granulations projections of arachnoid mater which pass through the meningeal layer of the dura into the dural venous sinuses; they are most prominent in the superior sagittal sinus CSF returns to the venous circulation by passing from arachnoid granulations into the blood contained within the dural venous sinuses arachnoid mater intermediate one of the three layers of meninges arachnoid mater is a thin membrane which is pressed against the inner surface of the dura mater by cerebrospinal fluid pressure; arachnids are spiders, the space deep to this layer (subarachnoid space) has a spider web-like appearance aryepiglottic fold a fold of mucous membrane within the laryngopharynx that extends from the arytenoid cartilage to the epiglottis aryepiglottic fold covers the aryepiglottic muscle arytenoid cartilage a pyramid-shaped cartilage located on the superior margin of the cricoid lamina of the larynx arytenoid cartilage is connected: above to the epiglottis via aryepiglottic m. and anteriorly to the thyroid cartilage via the vocal ligament; the paired arytenoid cartilages are pulled together (adducted) by the arytenoid mm. (transverse and oblique) body of fornix a group of nerve cell fibers arching beneath the corpus callosum main efferent fiber system of the hippocampal formation brain stem comprised of: midbrain, pons & medulla oblongata contains the nuclei of cranial nerves III-XII choroid plexus vascular membranes that occur within the ventricles choroid plexus produces cerebrospinal fluid corniculate cartilage a small cartilage located on the apex of the arytenoid cartilage of the larynx corniculate cartilage is located at the posterior end of the aryepiglottic fold central canal of spinal cord small opening in the center of the spinal cord continuous with the central canal of the medulla and, through it, with the fourth ventricle of the brain cerebral hemispheres comprised of: cortex featuring gyri, sulci, fissures & lobes; commissures connecting parts; basal ganglia; contains lateral ventricles; termination of the olfactory tract (cranial nerve I) also known as: telencephalon cerebral aqueduct canal connecting the third and fourth also known as: aqueduct of Sylvius
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ventricles, passing through the midbrain cerebral peduncle a large fiber bundle that connects the forebrain with the hindbrain contains axons that control voluntary movement (corticospinal and corticopontine tracts); also known as: crus cerebri cerebellum posterior part of the metencephalon largest part of hindbrain; important for coordination of movement cerebellar peduncle, middle
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Muscles1 - Visceral Structures of the Head and Neck -...

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