| medial branches | Branches directed toward the midline, to the middle. Nomina Anatomica lists medial branches (ramus lateralis/rami mediales) of the following: 1) anterolateral central arteries, rami mediales arteriarum centralium anterolateralium; 2) dorsal primary rami of spinal nerves, rami medialis ramorum dorsalium nervorum cervicalium/thoracicalium/lumbalium/sacralium; 3) left branch of portal vein, rami mediales rami sinistri venae portae hepatis; 4) left hepatic duct, ramus medialis ductus hepatici sinistri; 5) middle lobar branch of right pulmonary artery, ramus medialis ramorum lobarium medium arteriorum pulmonarium dextrum; 6) supraorbital nerve, ramus medialis nervi supraorbitalis. Synonym: rami mediales. (05 Mar 2000) |
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| medial calcaneal branches of tibial nerve | <anatomy, nerve> Cutaneous branches of tibial nerve distributed to the inferior and medial heel. Synonym: rami calcanei mediales nervi tibialis. (05 Mar 2000) |
| medial crural cutaneous branches of saphenous nerve | <anatomy, nerve> Branches of saphenous nerve distributed to the skin of the medial side of the leg. Synonym: rami cutanei cruris mediales nervi sapheni. (05 Mar 2000) |
| medial mammary branches | Branches primarily distributed to the medial portion of the breast. Nomina Anatomica lists medial mammary branches (rami mammarii mediales...) of the following: 1) anterior cutaneous branches of ventral primary rami of thoracic spinal nerves (...rami cutanei anterioris ramorum ventralium nervorum thoracicorum; also known as anterior cutaneous branches of intercostal nerves (...rami cutanei anterioris nervorum intercostalium); nerve branches accompanying the perforating branches of internal thoracic artery. 2) perforating branches of internal thoracic artery (...rami perforantes arteriae thoracicae internae ). Synonym: rami mammarii mediales. (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) |
| mediastinal branches | Branches distributed to the mediastinum. Synonym: rami mediastinales, arteriae mediastinales anteriores, mediastinal arteries. (05 Mar 2000) |
| mediastinal branches of internal thoracic artery | <anatomy, artery> Small twigs supplying anterior mediastinal structures: mainly thymus and lymph nodes. Synonym: rami mediastinales arteriae thoracicae internae, rami thymici, anterior mediastinal arteries, arteriae thymicae, thymic arteries. (05 Mar 2000) |
| mediastinal branches of thoracic aorta | Numerous small arteries supplying the pleura and lymph nodes of the posterior mediastinum. Synonym: rami mediastinales aortae thoracicae, posterior mediastinal arteries. (05 Mar 2000) |
| meningeal branches | Branches of vessels or nerves distributed to the coverings of the brain and spinal cord. Synonym: rami meningei. (05 Mar 2000) |
| perforating branches | Arterial branches which penetrate a wall or pass from the anterior to the posterior aspect or compartment of a structure such as the hand or foot to anastomose or be distributed. Synonym: ramus perforans, perforating peroneal artery. (05 Mar 2000) |
| perforating branches of internal thoracic artery | <anatomy, artery> Small branches of the internal thoracic artery running between the costal cartilages to supply overlying skin and subcutaneous tissues. Synonym: ramus perforantes arteriae thoracicae internae, perforating arteries of internal mammary. (05 Mar 2000) |
| perforating branches of palmar metacarpal arteries | The perforating branches of the palmar metacarpal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the hand from the palmar metacarpal arteries. Synonym: ramus perforantes arteriarum metacarpalium palmarium, perforating arteries of hand. (05 Mar 2000) |
| perforating branches of plantar metatarsal arteries | The perforating branches of the plantar metatarsal arteries, three small arteries that pass dorsally through the second, third, and fourth interosseous spaces of the foot from the plantar metatarsal arteries. Synonym: ramus perforantes arteriarum metatarsearum plantarium, perforating arteries of foot. (05 Mar 2000) |
| mental branches of mental nerve | <anatomy, nerve> Branches of the mental nerve providing general sensory innervation to the skin of the chin. Synonym: rami mentales nervi mentalis. (05 Mar 2000) |
| perineal branches of posterior femoral cutaneous nerve | <anatomy, nerve> Branches of posterior femoral cutaneous nerve which convey sensory fibres to the skin of the lateral-most perineum and adjacent portions of the upper medial thigh. Synonym: rami perineales nervi cutanei femoris posterioris. (05 Mar 2000) |