DEVLIN, Maureen*; LIEBERMAN, Daniel; LEDOUX, Nicole; Harvard University; Harvard University; Harvard University: Estradiol, strain, and periosteal bone growth Recently we showed that estradiol (E2) increases osteogenic responses to loading, so that the same mechanical loading produces more periosteal bone growth in individuals with higher E2 levels. This hypothesis was supported in sheep (Ovis aries, N=32) […]
sessions: Session 54
Dietary consistency and the canalization of skull growth
ZELDITCH, ML*; MYERS, P; LUNDRIGAN, BL; Univ. of Michigan, Ann Arbor; Univ. of Michigan, Ann Arbor; Michigan State Univ., E. Lansing: Dietary consistency and the canalization of skull growth Forces generated by biting and mastication influence mammalian skull shape and are also thought to influence its variability. As a result, eating soft food reduces growth, […]
Comparative analysis of mouse metatarsal ossification and implications for differential skeletal growth
RENO, P.L.*; MCBURNEY, D.L.; LOVEJOY, C.O.; HORTON, W.E.; Kent State University, OH; NEOUCOM, Rootstown, OH; Kent State University, OH; NEOUCOM, Rootstown, OH; Kent State University, OH; NEOUCOM, Rootstown, OH: Comparative analysis of mouse metatarsal ossification and implications for differential skeletal growth The diversity of skeletal proportions in mammals is largely achieved by modifying physeal growth […]
Applying muscle forces to finite element models of bone How much modeling precision is necessary
DUMONT, E.R.*; GROSSE, I.R.; COLETTA, C.E.; UMass, Amherst; UMass, Amherst; UMass, Amherst: Applying muscle forces to finite element models of bone: How much modeling precision is necessary? Finite element analysis (FEA) is a powerful tool for understanding the mechanics of physical systems. Existing FEA tools were developed to enable engineers to predict the physical behavior […]
An investigation into the effects of PCB 126 on bone density in turtles
FORD, D.K.*; HOLLIDAY, C.M.; Ohio University, Athens, OH; Ohio University, Athens, OH: An investigation into the effects of PCB 126 on bone density in turtles Bone is a metabolically active tissue functioning as a physiological mineral reservoir while also providing support and defense for the organism. However, the physical properties of skeletal tissues may be […]
The evolution of high-performance tail muscles in snakes
Meeting Abstract 54.3 Jan. 6 The evolution of high-performance tail muscles in snakes MOON, B.R.*; TULLIS, A; University of Louisiana at Lafayette ; University of Puget Sound BradMoon@louisiana.edu Rattling by rattlesnakes is one of the fastest vertebrate movements and involves some of the highest contraction frequencies sustained by vertebrate muscle. Specifically, the shaker muscles in the tails […]
Scaling of aerobic metabolic processes in muscle the effect of fiber size and diffusion
Meeting Abstract 54.4 Jan. 6 Scaling of aerobic metabolic processes in muscle: the effect of fiber size and diffusion KINSEY, S.T.; Univ. of North Carolina Wilmington kinseys@uncw.edu Studies of the scaling of metabolism with body mass typically focus on rates of oxygen consumption. We have investigated the scaling of an aerobic metabolic process, the rate of post-contractile […]
Morphological adaptations in large muscle fibers secondarily evolved for aerobic locomotor function
Meeting Abstract 54.1 Jan. 6 Morphological adaptations in large muscle fibers secondarily evolved for aerobic locomotor function HARDY, KM*; KINSEY, ST; UNCW; UNCW kmh6265@uncw.edu Swimming muscles of the blue crab, Callinectes sapidus, undergo extreme hypertrophic cell growth during post-metamorphic development, reaching dimensions that far exceed normal cells. The low cell surface area:volume and long intracellular diffusion distances […]
Evolution of Vertebrate Striated Myosins Myosin Heavy Chain Diversity in Amphioxus
Meeting Abstract 54.2 Jan. 6 Evolution of Vertebrate Striated Myosins: Myosin Heavy Chain Diversity in Amphioxus SCHACHAT, F.; Duke Univ. Med. Ctr. f.schachat@cellbio.duke.edu The position of cephalochordates in vertebrate phylogeny is controversial (Gee, 1996; Delsuc et al., 2006). Nonetheless, whether cephalochordates are the most basal of living chordates or a sister phyla of chordates, they remain an […]
Equine digital flexor muscle contractile function studied in vivo
Meeting Abstract 54.5 Jan. 6 Equine digital flexor muscle contractile function studied in vivo BUTCHER, M.T.*; HERMANSON, J.W.; DUCHARME, N.G.; BERTRAM, J.E.A.; Univ. of Calgary; Cornell Univ.; Cornell Univ.; Univ. Calgary mbutche@clemson.edu The forelimb digital flexor muscle complex of the horse displays a remarkable range of architectural diversity despite each muscle having basically the same mechanical advantage […]
