Results 171 to 180 of about 27,664 (287)
Linking individual variation in facial musculature to facial behavior in rhesus macaques
Abstract Facial expression is a key component of primate communication, and primates (including humans) have a complex system of facial musculature underpinning this behavior. Human facial musculature is highly variable across individuals, but to date, whether other primate species exhibit a similar level of inter‐individual variation is unknown ...
Clare M. Kimock +7 more
wiley +1 more source
Variation in parrot jaw musculature
Interspecific morphological differences in some superficial jaw muscles of parrots. Abstract Psittaciformes, the order encompassing parrots and their relatives, are highly diverse and generally known for having a strong beaks used for multiple behaviors. The muscles related to the masticatory apparatus should reflect this functional complexity; however,
Ana Carolina L. Faillace +3 more
wiley +1 more source
Abstract Silesaurids (Archosauria: Dinosauriformes) are found in Middle to Upper Triassic deposits across Pangea, but few stratigraphic sections record the evolution of the group in one geographic area over millions of years. Here, we describe silesaurid remains from the oldest of the Upper Triassic stratigraphic sequence from the base of the Dockum ...
Frederick B. Tolchard +2 more
wiley +1 more source
Abstract Mysticetes, or baleen whales, have an air sac on the ventral surface of the larynx known as the “laryngeal sac.” The primary hypothesis regarding this structure's function is that it is involved in sound production. However, several other functions have been proposed, including air recycling, air storage, and even buoyancy control.
Gen Nakamura +7 more
wiley +1 more source
Abstract Autonomic nerves are crucial in cardiac function and pathology. However, data on the distribution of cholinergic and noradrenergic nerves in normal and pathologic human hearts is lacking. Nonfailing donor hearts were pressure‐perfusion fixed, imaged, and dissected. Left ventricular cardiomyopathy samples were also obtained.
Peter Hanna +16 more
wiley +1 more source
An overview of the postcranial osteology of caecilians (Gymnophiona, Lissamphibia)
Abstract Caecilians comprise a relatively small (~220 species) group (Gymnophiona) of snake‐like or worm‐like, mostly tropical amphibians. Most adult caecilians are fossorial, although some species may live in aquatic or semi‐aquatic environments, either as larvae or adults.
Rodolfo Otávio Santos +2 more
wiley +1 more source
Characteristics and Associated Risk Factors of Broad Ligament Hernia: A Systematic Review. [PDF]
Dowers K +5 more
europepmc +1 more source
Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman +11 more
wiley +1 more source
Giant Broad Ligament Leiomyoma: A Diagnostic and Surgical Challenge. [PDF]
Jena S +4 more
europepmc +1 more source

