Megan Anne Holmes

Journal article Evol Anthropol · March 2025 Featured Publication The jaw-adductor muscles drive the movements and forces associated with primate feeding behaviors such as biting and chewing as well as social signaling behaviors such as wide-mouth canine display. The past several decades have seen a rise in research aime ... Full text Open Access Link to item Cite

Ontogenetic biomechanics of tufted (Sapajus) and untufted (Cebus) capuchin mandibles.

Journal article Am J Biol Anthropol · October 2024 Featured Publication OBJECTIVES: Cortical bone geometry is commonly used to investigate biomechanical properties of primate mandibles. However, the ontogeny of these properties is less understood. Here we investigate changes in cortical bone cross-sectional properties througho ... Full text Link to item Cite

Ontogenetic changes in jaw leverage and skull shape in tufted and untufted capuchins.

Journal article J Morphol · May 2024 Featured Publication The ontogeny of feeding is characterized by shifting functional demands concurrent with changes in craniofacial anatomy; relationships between these factors will look different in primates with disparate feeding behaviors during development. This study exa ... Full text Link to item Cite

The influence of jaw-muscle fibre-type phenotypes on estimating maximum muscle and bite forces in primates.

Journal article Interface Focus · October 6, 2021 Featured Publication Numerous anthropological studies have been aimed at estimating jaw-adductor muscle forces, which, in turn, are used to estimate bite force. While primate jaw adductors show considerable intra- and intermuscular heterogeneity in fibre types, studies general ... Full text Link to item Cite

Fiber-type phenotype of the jaw-closing muscles in Gorilla gorilla, Pan troglodytes, and Pan paniscus: A test of the Frequent Recruitment Hypothesis.

Journal article J Hum Evol · February 2021 Featured Publication Skeletal muscle fiber types are important determinants of the contractile properties of muscle fibers, such as fatigue resistance and shortening velocity. Yet little is known about how jaw-adductor fiber types correlate with feeding behavior in primates. C ... Full text Link to item Cite

The Source and the Course of the Articular Branches to the T4-T8 Zygapophysial Joints.

Journal article Pain Med · December 1, 2019 Featured Publication OBJECTIVE: To define the source and the course of the articular branches to the midthoracic zygapophysial ("z") joints. DESIGN: Cadaveric dissection. SETTING: The Gross Anatomy Laboratory of the Duke University School of Medicine. SUBJECTS: Ten human cadav ... Full text Link to item Cite

Proteomics and immunohistochemistry identify the expression of α-cardiac myosin heavy chain in the jaw-closing muscles of sooty mangabeys (order Primates).

Journal article Arch Oral Biol · July 2018 Featured Publication OBJECTIVE: The jaw-closing muscles of humans and nonprimate mammals express alpha-cardiac fibers but MyHC α-cardiac has not been identified in the jaw adductors of nonhuman primates. We determined whether MyHC α-cardiac is expressed in the superficial mass ... Full text Link to item Cite

Jaw-Muscle Fiber Architecture and Leverage in the Hard-Object Feeding Sooty Mangabey are not Structured to Facilitate Relatively Large Bite Forces Compared to Other Papionins.

Journal article Anat Rec (Hoboken) · February 2018 Featured Publication Numerous studies have sought to link craniofacial morphology with behavioral ecology in primates. Extant hard-object feeders have been of particular interest because of their potential to inform our understanding about the diets of early fossil hominins. S ... Full text Link to item Cite

Assessing surgical training: a utility analysis of the advanced surgical skills for exposure in trauma course

Journal article Journal of the American College of Surgeons · October 2014 Featured Publication Full text Cite

Interpreting skeletal growth in the past from a functional and physiological perspective.

Journal article Am J Phys Anthropol · January 2013 Featured Publication The study of juvenile skeletal remains can yield important insights into the health, behavior, and biological relationships of past populations. However, most studies of past skeletal growth have been limited to relatively simple metrics. Considering addit ... Full text Link to item Cite

Dietary effects on development of the human mandibular corpus.

Journal article Am J Phys Anthropol · August 2011 Featured Publication The extent to which the mandibular corpus exhibits developmental plasticity has important implications for interpreting variation in adult and juvenile mandibular morphology in the archaeological and paleontological record. Here, we examine ontogenetic cha ... Full text Link to item Cite