The occurrence of a brachial plexus united into a single cord is very rare. During routine dissection of an elderly female cadaver, the brachial plexus united into a single cord was observed bilaterally. On the left side, C4, C5, and C6 roots combined to form the upper trunk, the C7 root continued as the middle trunk, and C8 and T1 united to form the lower trunk. All three trunks almost immedia...

The neural crest and neurogenic placodes are thought to be a vertebrate innovation that gives rise tomuch of the peripheral nervous system (PNS). Despite their importance for understanding chordate evolution and vertebrate origins, little is known about the evolutionary origin of these structures. Here, we investigated the mechanisms underlying the development of ascidian trunk epidermal sensor...

Trunk instability during sitting is a major problem following neuromuscular injuries such as stroke and spinal cord injury. In order to develop new strategies for alleviating this problem, a better understanding of the intrinsic contributions of the healthy trunk to sitting control is needed. As such, this study set out to propose and validate a novel methodology for determining multidirectiona...

BACKGROUND It is undetermined whether calcium supplementation has an effect on obesity or body composition in postmenopausal women. The purpose of the study is to detect the effect of calcium supplementation on indices of obesity and body composition. METHODS This is a secondary analysis of data from a population-based, double-blind, placebo-controlled, randomized trial designed to determine ...

OBJECTIVES The elephant trunk technique for aortic dissection is useful for reducing false lumen pressure; however, a folded vascular prosthesis inside the aorta can cause haemolysis. The purpose of this study was to investigate whether an elephant trunk in a small-calibre lumen can cause haemolysis. METHODS Inpatient and outpatient records were retrospectively reviewed. RESULTS Two cases o...

Although oral dental tissue is a vertebrate attribute, trunk dental tissue evolved in several extinct vertebrate lineages but is rare among living species. The question of which processes trigger dental-tissue formation in the trunk remains open, and would shed light on odontogenesis evolution. Extra-oral dental structures (odontodes) in the trunk are associated with underlying dermal bony plat...

BACKGROUND Studies of regional fat distribution in adults with anorexia nervosa (AN) have shown decreased extremity fat at baseline and increased trunk fat with weight recovery, resulting in truncal adiposity. Little is known about fat distribution in adolescents with AN, especially with weight recovery. OBJECTIVE We sought to determine whether regional fat distribution in adolescents with AN...

System-based methods have been applied to assess trunk motor control in people with and without back pain, although the reliability of these methods has yet to be established. Therefore, the goal of this study was to quantify within- and between-day reliability using systems-based methods involving position and force tracking and stabilization tasks. Ten healthy subjects performed six tasks, in...

Can J Surg, Vol. 45, No. 3, June 2002 219 A idiopathic scoliosis (AIS) involves a deformity of the spine that is commonly assessed by physicians. The external trunk deformity is also recognized as a major concern in AIS, especially for the patient. Therefore, many authors advocate that that consideration be given to simultaneous surgical correction of spinal and trunk deformities. During poster...

We investigated the effect of eye-in-head and head-on-trunk direction on heading discrimination. Participants were passively translated in darkness along linear trajectories in the horizontal plane deviating 2° or 5° to the right or left of straight-ahead as defined by the subject's trunk. Participants had to report whether the experienced translation was to the right or left of the trunk strai...