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All anatomy entries starting with "A"

20 entries

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20 entries · Brain & Spinal Cord

Brain Structure Abducens Nucleus nucleus nervi abducentis Head & Skull The abducens nucleus in the lower pons is the horizontal gaze centre of the brainstem. It…

Brain Structure Amygdala corpus amygdaloideum Head & Skull The amygdala is an almond-shaped group of nuclei in the front of the medial temporal lobe,…

Brain Structure Angular Gyrus gyrus angularis Head & Skull The angular gyrus is part of the inferior parietal lobule, arching over the upturned end of…

Brain Structure Anterior Cingulate Cortex cortex cingularis anterior Head & Skull The anterior cingulate cortex is the front part of the cingulate gyrus, curving around the front…

Brain Structure Anterior Commissure commissura anterior Head & Skull The anterior commissure is a small, compact bundle of fibres that crosses the midline in the…

Brain Structure Anterior Corticospinal Tract tractus corticospinalis anterior Spine The anterior corticospinal tract carries the 10-15 percent of corticospinal fibres that do not cross in…

Brain Structure Anterior Limb of the Internal Capsule crus anterius capsulae internae Head & Skull The anterior limb is the front part of the internal capsule, lying between the head of…

Brain Structure Anterior Lobe of the Cerebellum lobus anterior cerebelli Head & Skull The anterior lobe is the part of the cerebellum in front of the primary fissure, on…

Brain Structure Anterior Nucleus of the Thalamus nuclei anteriores thalami Head & Skull The anterior nucleus of the thalamus forms the rounded front end (anterior tubercle) of the thalamus.…

Brain Structure Anterior Spinothalamic Tract tractus spinothalamicus anterior Spine The anterior spinothalamic tract carries crude touch and pressure from the opposite side of the body.…

Brain Structure Anterior White Commissure commissura alba anterior Spine The anterior white commissure is a band of white matter just in front of the central…

Brain Structure Anterolateral System systema anterolaterale Spine The anterolateral system is the group of ascending tracts in the front and side of the…

Brain Structure Arachnoid Granulations granulationes arachnoideae Head & Skull Arachnoid granulations are small outgrowths of the arachnoid mater that push through the dura into the…

Brain Structure Arachnoid Mater arachnoidea mater Head & Skull The arachnoid mater is the thin, translucent middle layer of the meninges, lying just under the…

Brain Structure Arbor Vitae arbor vitae cerebelli Head & Skull Arbor vitae ("tree of life") is the branching pattern of white matter seen when the cerebellum…

Brain Structure Arcuate Fasciculus fasciculus arcuatus Head & Skull The arcuate fasciculus is a curved bundle of association fibres that arches around the back end…

Brain Structure Arcuate Nucleus of the Hypothalamus nucleus arcuatus hypothalami Head & Skull The arcuate nucleus is a crescent of neurons at the base of the third ventricle near…

Brain Structure Area Postrema area postrema Head & Skull The area postrema is a small paired bump in the floor of the fourth ventricle at…

Brain Structure Association Cortex cortex associativus Head & Skull Association cortex is the large part of the cerebral cortex that is neither primary sensory nor…

Brain Structure Auditory Association Cortex area auditoria associativa Head & Skull The auditory association cortex surrounds the primary auditory cortex on the superior temporal gyrus, including the…