| medial margin | The border of a structure closest to the medial plane. Synonym: margo medialis, medial margin. (05 Mar 2000) |
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| medial medullary lamina of corpus striatum | A fibre layer separating the medial and lateral segments of the globus pallidus. Synonym: lamina medullaris medialis corporis striati. (05 Mar 2000) |
| medial meniscus | <anatomy> A flat disc-shaped ligament which stabilises and supports the inner aspect of the knee joint. Commonly injured in knee sprains. (27 Sep 1997) |
| medial midpalmar space | The more medial of the central palmar spaces, bounded medially by the hypothenar compartment; related distally to the synovial tendon sheaths of digits 3 and 4 and proximally to the common flexor sheath. Synonym: medial midpalmar space, middle palmar space. (05 Mar 2000) |
| medial nasal branches of anterior ethmoidal nerve | <anatomy, nerve> Branches of nasociliary nerve distributed to the nasal septum. Synonym: rami nasales mediales nervi ethmoidalis anterioris. (05 Mar 2000) |
| medial nasal fold | An ectodermally covered mesenchymal swelling lying medial to the olfactory placode or pit in the embryo. Synonym: medial nasal fold, medial nasal primordium, medial nasal process. (05 Mar 2000) |
| medial nasal primordium | An ectodermally covered mesenchymal swelling lying medial to the olfactory placode or pit in the embryo. Synonym: medial nasal fold, medial nasal primordium, medial nasal process. (05 Mar 2000) |
| medial nasal process | An ectodermally covered mesenchymal swelling lying medial to the olfactory placode or pit in the embryo. Synonym: medial nasal fold, medial nasal primordium, medial nasal process. (05 Mar 2000) |
| medial nasal prominence | An ectodermally covered mesenchymal swelling lying medial to the olfactory placode or pit in the embryo. Synonym: medial nasal fold, medial nasal primordium, medial nasal process. (05 Mar 2000) |
| medial nucleus of thalamus | A large, composite cell group in the dorsomedial region of the thalamus having reciprocal connections with the entire extent of the frontal cortex anterior to the motor cortex (area 4) and premotor cortex (area 6). The afferent connections of the medial nucleus also include projections from the olfactory cortex and amygdala. Synonym: nucleus medialis thalami, dorsomedial nucleus, mediodorsal nucleus. (05 Mar 2000) |
| medial occipital artery | <anatomy, artery> One of the terminal branches of the posterior cerebral artery; it is distributed, by several named branches, to the posterior corpus callosum and the medial and superolateral portions of the occipital lobe including the visual cortex. Synonym: arteria occipitalis medialis. (05 Mar 2000) |
| medial occipitotemporal gyrus | A relatively short horizontal convolution on the inferomedial aspect of the occipital and temporal lobes, demarcated from the lateral occipitotemporal or fusiform gyrus by the deep collateral sulcus, from the cuneus by the calcarine sulcus; its anterior extreme abuts the isthmus of the parahippocampal gyrus; the medial or upper strip of the gyrus forming the lower bank of the calcarine sulcus corresponds to the inferior half of the striate area or primary visual cortex and represents the contralateral upper quadrant of the binocular field of vision. Synonym: gyrus lingualis, gyrus occipitotemporalis medialis, medial occipitotemporal gyrus. (05 Mar 2000) |
| medial palpebral commissure | The union of the upper and lower eyelids adjacent to the medial angle. Synonym: commissura palpebrarum medialis. (05 Mar 2000) |
| medial palpebral ligament | <anatomy> The fibrous band that attaches the medial ends of the tarsal plates to the maxilla at the medial orbital margin. Synonym: ligamentum palpebrale mediale, ligamentum tarsale internum, tendo oculi, tendo palpebrarum. (05 Mar 2000) |
| medial part of longitudinal arch of foot | medial part of longitudinal arch of foot |