Opisthokonta: Metazoa II: Eumetazoa: Bilateria: Protostomia: Ecdysozoa Objectives: • Know the key features of the Phylum Nematoda. Know how they relate to other metazoan phyla. • List the key characteristics of the Phylum Arthropoda. Identify examples. List the four subphyla and their key distinguishing features. Identify examples of the subphyla Chelicerata‚ Crustacea‚ Myriapoda‚ and Hexapoda. • Be able to identify the different structures on these organisms and understand their function. • Understand
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Paget Disease of the bone was first described by English surgeon Sir James Paget in 1876. He observed certain clinical findings in five male patients. Each of these individuals displayed certain deformities on a minimum of two skeletal areas. When describing this condition‚ he used the term osteitis deformans by which the disease is also known. He felt‚ at first‚ that he was describing a rare inflammatory-type disorder. However‚ there were soon numerous papers published on similar findings in
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disease is a locally occurring immunoinflammatory response “body attacks self‚” to bacteria in the oral cavity resulting in alveolar bone “ the thickened ridge of bone that contains the tooth socket on the bone that holds teeth the maxilla and the mandible‚” loss. Both disease entities show synonymous risk factors and hence it had become inevitable to acknowledge the interrelationship between the two bone loss disease. In a study group of the periodontal assessment in postmenopausal osteoporotic women
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common ancestor between us and chimps‚ which is significant Orrorin tugenensis Discovered in tugen hills‚ kenya Dates to 6mya‚ around the same time as sahelanthropus Woodland environment Only found small bits of post cranium and some teeth and mandible bones Probably the size of a chimp‚ which is common for this time period Small postcanines relative to body size‚ may suggest direct relation to humans Microdont‚ in contrast to later hominins who had relatively large canines or were megadont
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Chapter 8 Test Review Multiple Choice 1. Which is not a part of the axial skeleton? A. rib B. vertebral column C. mandible D. clavicle 2. Which is not a part of the appendicular skeleton? A. coxal bones B. parietal bones C. radius D. clavicle 3. The axial skeleton consists of: A. 60 bones. B. 68 bones. C. 74 bones. D. 80 bones. 4. The appendicular skeleton consists of: A. 102 bones. B. 118 bones. C. 126 bones. D. 137 bones. 5. The term sinus‚ as it relates to bone
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zygomaticus major c) corrugator supercilii d) levator palpebrae superioris e) buccinator 10) The ________ originates on the zygomatic arch and inserts on the angle of the mandible. a) Masseter b) Buccinators c) Temporalis d) Genioglossus e) stylohyoid 11) Which one of these muscles helps to open the mouth (depress the mandible)? a) zygomaticus major b) digastric c) sternohyoid d) depressor anguli oris e) hyoglossus 12) Which of the following muscles of mastication would be responsible
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muscle for Figures 3-4. Muscle|Movement(s) Performed| Example: Deltoid|Example: Abducts the arm| Frontalis|Elevates eyebrows‚ draws scalp forward| Levator Scapulae|Extension of neck‚ Elevation and Rotation of Scapulae| Masseter|Elevation of mandible| Obicularis oris|Encircles mouth‚ closes lips‚ protrudes lips| Occipitalis|Retracts scalp‚ fixes galea aponeurotica so frontalis can act eyebrows.| Orbicularis oculi|Sphincter of the eyelids‚ closes eyes for blinking‚ squinting and sleep; aids
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BRACE yourself for Orthodontics! An orthodontist can be defined through medical terminology as a specialist in the straightening of teeth. The tasks of the typical orthodontists include “assessing‚ diagnosing‚ and correcting malocclusions”‚ incorrect positioning of the teeth when biting (bad bites)‚ with the use of various orthodontic appliances‚ but without oral or maxillofacial surgery‚ the job of an oral and maxillofacial surgeon. (Four Seasons Dental-Orthodontics and Orthodontists)The
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filaments) Cartilagenous (bones connected by cartilage) Synarthrosis (immobile) Suture Amphiarthrosis (slight movement) Syndesmosis cranium -carpal/tarsal bones‚ -btwn radius & ulna Diarthrosis (free mobility) Gomphosis joint btwn teeth & maxilla/mandible Synchondrosis Symphisis -epiphyseal plate -joint between first rib &manibrium -intervetebral disc -pubic symphisis CTLGE=HYALINE CTLGE=FIBROCTLGE Synovial Joint Synovial (bones separated by fluid-filled cavity) all joints of limbs most joints
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be cooked it changed the constancy. Food that was once hard and required more work to chew began to be a lot easier to eat. Hunter-gatherers had characteristics such as long cranial vault‚ large robust mandible‚ bigger teeth and tooth wear was normal. Agriculturalists had short skulls‚ small mandibles‚ smaller teeth and little wear on the teeth (Larsen 2014‚ 436).
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