Journal of Anatomy
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#1Joshua K. Moyer (UMass: University of Massachusetts Amherst)
#2B. Finucci (NIWA: National Institute of Water and Atmospheric Research)H-Index: 2
Last. Duncan J. Irschick (UMass: University of Massachusetts Amherst)H-Index: 45
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This study describes and illustrates the jaws, teeth, and tooth microstructure of the Prickly Dogfish Oxynotus bruniensis. Detailed accounts of the dental morphology of O. bruniensis are rare and have not addressed the tissue arrangement or microstructure of the teeth. These features are documented and discussed in the contexts of interspecific comparisons with other elasmobranchs and the dietary specialization of O. bruniensis. The overall tooth morphology of O. bruniensis is similar to those o...
#1Aleksandra M. Mech (UCL: University College London)H-Index: 1
#2Anna-Leigh Brown (UCL: University College London)H-Index: 1
Last. James N. Sleigh (UCL: University College London)H-Index: 16
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The neuromuscular junction (NMJ) is the highly specialised peripheral synapse formed between lower motor neuron terminals and muscle fibres. Post-synaptic acetylcholine receptors (AChRs), which are found in high density in the muscle membrane, bind to acetylcholine released into the synaptic cleft of the NMJ, thereby enabling the conversion of motor action potentials to muscle contractions. NMJs have been studied for many years as a general model for synapse formation, development and function, ...
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#1Noraly M. M. E. van Meer (WUR: Wageningen University and Research Centre)
#2Uroš Cerkvenik (WUR: Wageningen University and Research Centre)H-Index: 2
Last. Sander W. S. Gussekloo (WUR: Wageningen University and Research Centre)H-Index: 10
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Parasitic wasps use specialized needle-like structures, ovipositors, to drill into substrates to reach hidden hosts. The external ovipositor (terebra) consists of three interconnected, sliding elements (valvulae), which are moved reciprocally during insertion. This presumably reduces the required pushing force on the terebra and limits the risk of damage whilst probing. Although this is an important mechanism, it is still not completely understood how the actuation of the valvulae is achieved, a...
The descending branch of the lateral circumflex artery is a septocutaneous vessel that is vital for free and pedicle thigh flap transfer surgeries when repairing tissue defects. It also forms an anastomosis with the superior lateral genicular artery to create a collateral pathway for circumventing occlusions in the superficial femoral artery (SFA). Many anatomical texts and atlases imply the persistence of this anastomosis. However, previous studies indicate variability in the source of the arte...
#1Chris J. Law (AMNH: American Museum of Natural History)H-Index: 7
The carnivoran cranium undergoes tremendous growth in size and development of shape to process prey as adults and, importantly, these ontogenetic processes can also differ between the sexes. How these ontogenetic changes in morphology actually relate to the underlying jaw musculature and overall bite performance has rarely been investigated. In this study, I examined sex-specific ontogenetic changes in cranial morphology, jaw adductor muscles, and theoretical bite force between subadults and adu...
#1Christophe Mallet (CNRS: Centre national de la recherche scientifique)H-Index: 1
#2Guillaume Billet (CNRS: Centre national de la recherche scientifique)H-Index: 18
Last. Raphaël Cornette (CNRS: Centre national de la recherche scientifique)H-Index: 14
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The appendicular skeleton of tetrapods is a particularly integrated structure due to the shared developmental origin or similar functional constraints exerted on its elements. Among these constraints, body mass is considered strongly to influence its integration but its effect on shape covariation has rarely been addressed in mammals, especially in heavy taxa. Here, we propose to explore the covariation patterns of the long bones in heavy animals and their link to body mass. We investigate the f...
The peripheral nervous system lacks lymphatic vessels and is protected by the blood-nerve barrier, which prevents lymphocytes and antibodies from entering the neural parenchyma. Peripheral nerve injury results in degeneration of the distal nerve and myelin degeneration causes macrophage aggregation, T lymphocyte infiltration, major histocompatibility complex class II antigen expression, and immunoglobulin G deposition in the nerve membrane, which together result in nerve edema and therefore affe...
#1Marie Vanhoof (Katholieke Universiteit Leuven)H-Index: 2
#2Timo van Leeuwen (Katholieke Universiteit Leuven)H-Index: 2
Last. Evie Vereecke (Katholieke Universiteit Leuven)H-Index: 19
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Primates live in very diverse environments and, as a consequence, show an equally diverse locomotor behaviour. During locomotion, the primate hand interacts with the superstrate and/or substrate and will therefore probably show adaptive signals linked with this locomotor behaviour. Whereas the morphology of the forearm and hand bones have been studied extensively, the functional adaptations in the hand musculature have been documented only scarcely. To evaluate whether there are potential adapta...
#1Jan Cvrček (Charles University in Prague)
#2Rebeka Rmoutilová (Charles University in Prague)H-Index: 1
Last. Petr VelemínskýH-Index: 10
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Frontal sinus analysis has potential utility for detecting biologically related individuals. However, the methodological approach to its evaluation, as well as its informative value, have been questioned. The aim of this work is to introduce a new approach to evaluating the frontal sinus using the 'external supraorbital line' (ESOL) and to determine whether there are sex differences within families in frontal sinus measurements and whether frontal sinus similarity reflects known genetic relation...
#1Karly E. Cohen (GW: George Washington University)
#2Callie H. Crawford (NJIT: New Jersey Institute of Technology)H-Index: 1
Last. Brooke E. Flammang (NJIT: New Jersey Institute of Technology)H-Index: 14
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Remoras are fishes that attach to a broad range of hosts using an adhesive disc on their head that is derived from dorsal fin elements. Research on the adhesive mechanism of remoras has focused primarily on the skeletal components of the disc and their contribution to generating suction and friction. However, the soft tissues of the disc, such as the soft lip surrounding the bony disc and the muscles that control the bony lamellae, have been largely ignored. To understand the sealing mechanism o...
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