WebThe scaphoid bone is the largest bone of the proximal row, and has received its name (navicular) from its fancied resemblance to a boat. It is situated at the radial side of the … WebAnatomy of Antalis: a,b, detailed anatomy of Antalis entalis (after Morton, 1959). c,d,e, gross anatomy and details of Antalis vulgaris (after Lacaze-Duthiers, 1856-1857). a: Median ...
Scaphoid Anatomy Musculoskeletal Key
Web(2010) The arterial anatomy of the medial femoral condyle and its clinical implications. J Hand Surg Eur 35(7), 569–574. 6. Jones DB, Burger H, Bishop AT, Shin AY (2008) Treatment of scaphoid waist nonunions with an avascular proximal pole and carpal collapse. A comparison of two vascularized bone grafts. J Bone Joint Surg Am 90(12), 2616 ... Anatomy Shells The shells ... The scaphopod positions itself head down in the substrate, with the apical end of the shell (at the rear of the animal's body) projecting upward. This end seldom appears above the level of the substrate, however, as doing so exposes the animal to numerous predators. See more The tusk shells or tooth shells, technically the Scaphopoda /skæˈfɒpədə/ , are members of a class of shelled marine mollusc with worldwide distribution, and are the only class of exclusively infaunal marine molluscs. … See more Shells The shells of the members of the Gadilida are usually glassy-smooth and narrow, with a reduced aperture. This along with other structures of … See more Tusk shells live in seafloor sediment, feeding primarily on foraminiferans; some supplement this with vegetable matter. See more Fossil record There is a good fossil record of scaphopods from the Mississippian onwards, making … See more The morphological shape of the scaphopod body makes it difficult to orient it satisfactorily. As a result, researchers have often disagreed as to which direction is anterior/ posterior and which is ventral/ dorsal. According to Shimek and Steiner, "[t]he apex of the … See more Scaphopods have separate sexes, and external fertilisation. They have a single gonad occupying much of the posterior part of the body, and … See more The group is composed of two subtaxa, the Dentaliida (which may be paraphyletic) and the monophyletic Gadilida. The differences between the two orders is subtle and hinges on size and on details of the radula, shell, and foot. Specifically, the Dentaliids are the … See more esc とは 半導体
The scaphopod foot is ventral: more evidence from the anatomy …
WebAetiology Pathophysiology. The most common mechanism of injury is a fall on an ulnar-deviated, pronated, and hyper-dorsiflexed (outstretched) wrist. 2. Other mechanisms … WebJan 1, 2002 · The evolutionary relationships of Scaphopoda within Mollusca are farther from resolution, with every conchiferan class a proposed sister group among modern analyses. Molecular avenues should provide significant progress in scaphopod phylogenetics, as indicated by recent comparative sequence analysis and gene expression patterns. WebTubercle of the trapezium and flexor retinaculum. Insertion. Proximal phalanx of the thumb. Innervation. Recurrent branch of median nerve, deep branch of ulnar nerve (deep head) Artery. Superficial palmar branch of radial artery. Action. Flexes thumb at metacarpophalangeal joint. escとは 医療