Quain's Elements of anatomy

Quain, Jones; Sharpey‐Schafer, E.; Thane, George Dancer

doi:10.5962/bhl.title.44375

Cited by 17 publications

(11 citation statements)

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“…It is the leftward margin of this area of fibrous tissue that forms the area we now define as the right fibrous trigone, this being the rightward end of the area of fibrous continuity between the leaflets of the aortic and mitral valves. The space itself was illustrated by Quain in the 19th century (Quain, 1837), and is recognizable in the dissections of McAlpine (McAlpine, 1975). McAlpine, however, did not name the recess, but its location can be recognized in his figure 10.4, where he shows it as part of the so‐called “aorto‐ventricular membrane.” It is also significant that, 25–3 through 25–6, McAlpine recognized an unusual variant of the area he described as the “right fibrous trigone” (McAlpine, 1975).…”

Section: Discussionmentioning

confidence: 99%

The atrioventricular conduction axis and the aortic root—Inferences for transcatheter replacement of the aortic valve

et al. 2021

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Conduction problems still occur following transcatheter aortic valvar replacement.With this in mind, we have assessed the relationship of the conduction axis to the aortic root. We used serial histological sections, made perpendicular to the base of the triangle of Koch in nine hearts, and perpendicular to the aortic root in 11 hearts.We first defined the extent of the fibrous tissues forming the boundaries of an infero-septal recess of the subaortic outflow tract, found in all datasets but one.When the recess was present, the axis penetrated through its rightward wall, giving rise to the left bundle branch prior to entering the outflow tract. The axis itself was usually on the crest of the ventricular septum, but could be deviated leftward or rightward. Its proximity to the virtual basal plane reflected the angulation of the muscular septum. On average, the superior edge of the left bundle was within 3.3 mm of the hinge of the right coronary leaflet, with a range from 0.4 to 10.2 mm. The arrangement was markedly different in the case lacking an infero-septal recess. Our findings necessitated a redefinition of the right fibrous trigone and the central fibrous body. The atrioventricular conduction axis, having entered the aortic root, is usually closest at the hinge of the right coronary leaflet. Knowledge of the depth of the infero-septal recess, and the angulation of the muscular ventricular septal, may help to avoid conduction problems following transcatheter implantation of the aortic valve.

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Section: Discussionmentioning

confidence: 99%

The atrioventricular conduction axis and the aortic root—Inferences for transcatheter replacement of the aortic valve

et al. 2021

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“…Quain's Elements of Anatomy predated Gray's Anatomy ; indeed, Henry Gray was accused of plagiarizing some of its content (Richardson, 2016). A total of 11 editions (1828–1914) were published under various editors (Quain, 1828, 1832, 1834, 1837; Quain & Sharpey, 1848; Sharpey & Ellis, 1856; Sharpey et al, 1867; Sharpey et al, 1878; Schäfer et al, 1882; Schäfer & Thane, 1890; Schäfer et al, 1908). Four editions were available for analysis in this research (see Table 1).…”

Section: Resultsmentioning

confidence: 99%

New context, new content—Rethinking genital anatomy in textbooks

Hayes

Temple-Smith

2022

Anatomical Sciences Ed

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It has been widely claimed that reductions in allocated teaching time and the widespread implementation of short‐cut teaching methodologies have led to a shortfall in anatomy knowledge among graduating doctors. This decline in knowledge is evident in the failure of anatomy content to prepare graduates for contemporary clinical practice. The implications for postgraduate surgical training are addressed in the numerous extracurricular anatomy courses available to surgical candidates. This paper focuses on genital diversity and its relevance to non‐surgical graduates, thus highlighting another potential impact of this knowledge shortfall on frontline clinic consultations. As the gender revolution and female genital cosmetic surgery industry flourish, nothing in contemporary anatomy textbooks addresses issues of diversification of female genitalia nor gives medical graduates a realistic view of what is normal regarding female genital appearance.

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“…As such, the small amount of skeletal muscle on the right was most likely innervated from motor axons from the cervical plexus [2,3]. We were unable to find any reports of CN XI failing to innervate the trapezius, but CN XI has been reported to terminate in the sternocleidomastoid [14].…”

Section: Discussionmentioning

confidence: 99%

Untrapped: bilateral hypoplasia of the trapezius muscle

2022

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Agenesis or congenital hypoplasia of skeletal muscles occurs infrequently but may occur with specific conditions such as Poland syndrome. The trapezius muscle can vary in the extent of its bony attachments or may have additional slips, however congenital absence or hypoplasia is extremely rare. There are only a few reports of partial or complete absence of the trapezius muscle. Two cases of bilateral absence of the trapezius were both in males and were accompanied by the absence of additional muscle in the pectoral girdle. Herein, we describe a case of a 56-year-old male cadaver with bilateral hypoplasia of the trapezius. The muscle was largely represented by atrophied muscle fibers with an abundance of fibrotic or fatty connective tissue. This subject had very minor hypoplasia of the left pectoralis major muscle, but the remaining muscles of the pectoral girdle were normal. The spinal accessory nerve terminated in the sternocleidomastoid muscle on both sides, failing to reach the trapezius. We interpret these findings to be consistent with a minor variant of Poland syndrome.

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Quain's Elements of anatomy

Cited by 17 publications

References 0 publications

The atrioventricular conduction axis and the aortic root—Inferences for transcatheter replacement of the aortic valve

The atrioventricular conduction axis and the aortic root—Inferences for transcatheter replacement of the aortic valve

New context, new content—Rethinking genital anatomy in textbooks

Untrapped: bilateral hypoplasia of the trapezius muscle

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