xxx Advertisements (not necessarily endorsed by The Antlion Pit): What are Antlions? • Classification • Why are they called antlions? • Size • Interrelationships with other animals Classification Antlions are a family of insects given the zoological classification Myrmeleontidae. The name is rooted in the Greek words myrmex (ant) and leon (lion). The family Myrmeleontidae is part of the order Neuroptera‚ translated variously as "nerve wings‚" "net wings‚" or "sinew wings." All
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a peach making strange slashing movements with its front legs. Then it stuck its head straight down into the ‘slashed’ are. When looking at the video from other angles it could be clearly seen that the bee had scooped up the peach flesh in its mandibles. Soon after the bee flew
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Explain how Lucy could be viewed as “the missing link” Australopithecus Afarensis‚ commonly known as Lucy‚ can be seen by many scientific and historic facts as ‘the missing link’. Anthropologists show that Lucy is a transitional fossil which helps prove the way hominids changed throughout the ages. Bipedalism is the biggest and most important evidence that Lucy has shown to tell one how she lived in the chain of evolution. The morphology of Lucy’s skeleton has so many different characteristics
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features such as a huge jaw and cheekbones and end a sagittal crest. The Australopithecus boisei lived about 2.3 to 1 million years ago and sometimes went through periods of dry periods where there adaptations would help them such as “It’s cranium and mandible appear built to resist the stresses associated with heavy chewing‚ and provide copious attachment areas for massive muscles of mastication”(Unger1). The cranium and
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THE HEAD AND NECK The head and neck region is an amalgam of components of all of the systems of the body. It is a relatively small region in relation to the amount of time given over to it in any anatomy course but that is largely due to the fact the structures within the region are small. The basic principles which have helped you to appreciate the anatomy of the other regions of the body apply equally to the head and neck (eg‚ muscles which cross a joint will act on that joint‚ etc)
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Extrinsic tongue muscles‚ by definition‚ originate from structures outside the tongue and insert into the tongue. The four paired extrinsic muscles protrude‚ retract‚ depress‚ and elevate the tongue: Muscle From Nerve Function Genioglossus muscle mandible-(Genial Tubercles) hypoglossal nerve Protrudes the tongue as well as depressing its center. Hyoglossus muscle hyoid bone hypoglossal nerve Depresses the tongue. Styloglossus muscle styloid process hypoglossal nerve Elevates and retracts
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| |Levator Scapulae | Tilts head back | |Masseter | Elevates mandible | |Obicularis oris | Movement of lips | |Occipitalis
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loads in the lower extremity. J Biomech 30:1123-1131. Grant PG (1973). Biomechanical significance of the instantaneous center of rotation: the human temporomandibular joint. J Biomech 6:109-113. Gysi A (1921). Studies on the leverage problem of the mandible. Dent Digest 27:74-84‚ 144-150‚ 203-208. Koolstra JH‚ van Eijden TMGJ (2007). Consequences of viscoelastic behavior in the human temporomandibular joint disc. J Dent Res 86:1198-1202. Koolstra JH‚ Tanaka E‚ van Eijden TMGJ (2007). Viscoelastic material
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downregulate it forcefully. Follow the downregulation‚ the protein transcripted by SOX9 gene is reduced‚ also its function to activate the genes induce bone development. As a result‚ bones cannot form properly and the one is most affected is the mandible. Follow the mandibular defect‚ the tongue in push inward and narrow the respiratory tract. The trunk of the tongue also is deviated upward‚ which impair the closure of the
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For Antero-posterior (AP) Projection of Cervical Spine § The areas from superior portion of C3 to T12 should be visible on the radiographic image. § There should be a superimposition of the shadows of the mandible and occipital over the atlas and most of the axis seen on the radiographic image showing that the patient extend the chin enough to be able to see fully the cervical vertebrae well. § The cervical spine was not seen rotated on the radiographic image
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