t Actions * Flexion: decrease in joint angle from anatomical postion (bend elbow‚ flexing forearm) * Extension: return to anatomical position from flexion * Abduction: away from body * Adduction: return of body to anatomical position * Rotation: circular * Lateral: anterior surface to lateral side * Medial: anterior surface to medial side * Circumduction: conical shape * Protraction: horizontal movement in anterior direction (jaw forward) * Retraction:
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Skeletal System Study Guide – Use the lecture folder to help you answer these questions. The more detail you add‚ the better prepared for the test you will be. 1. What are the functions of the skeleton? • Support • Movement • Protection • Mineral storage • Blood cell synthesis 2. What is the difference between osteoclasts and osteoblasts? Osteoclasts cause the bone tissue to break down and release calcium into the blood stream. When the calcium
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skeletal system is divided into 2 divisions : the AXIAL SKELETON and the APPENDICULAR SKELETON. the axial skeleton consists of your SKULL‚ HYOID BONE‚ and VERTEBRAL COLUMN. and then your APPENDICULAR SKELETON consists of your SHOULDER GIRDLE‚ UPPER EXTREMITIES‚ and LOWER EXTREMITIES. your skull is the superior portion of your axial skeleton‚ wherein you can find your frontal bone‚ that forms the anterior third of your cranial dome‚ parrietal bone‚ that forms the middle segment of the cranial dome
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They are made of thick cortical bone. Laminae The laminae are two flattened plates of bone extending medially from the pedicles to form the posterior wall of the vertebral foramen. The Pars Interarticularis is a special region of the lamina between the superior and inferior articular processes. A fracture or congenital anomaly of the pars may result in a spondylolisthesis. IntervertebralDiscs Intervertebral discs
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Activity 1.2.2: Skeleton Scavenger Hunt Introduction Throughout the Human Body Systems course‚ you will explore the many functions of the skeletal system. Bones‚ cartilage‚ ligaments and tendons are all types of connective tissue that support your frame. The human skeleton is a wonder of design and engineering. It is incredibly strong and affords us great protection‚ but it is also incredibly light‚ giving us a great range of mobility. As you go on to explore the human body‚ knowledge of bone
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Locomotion in an animal with an endoskeleton (fish) * Water has a higher relative density (800 times higher than air) and is a viscous medium to move through. * The body of a fish is of a streamlined shape to move quickly in water. * The streamlined shape of a fish: * a) is long ellipse tapering to a point (shaped like a torpedo) in the direction of the flow of water. * b) reduces the drag (a drag is water resistance caused by friction between moving water and the
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Review: Anatomy I Lab Chapter 1: Language of Anatomy What is anatomic position? - Human body is erect‚ with the feet only slightly apart‚ head and toes pointed forward‚ and arms hanging at the sides with palms facing forward. -two major divisions of human body surface are Axial‚ and Appendicular 2. Body orientation and direction. ~Superior- above ex. the nose is superior to the mouth ~Inferior- below ex. the abdomen is inferior to the chest ~Anterior- front ex
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Muscle Description Muscles of the Head: Facial Expression Origin Insertion Action bipartite muscle‚ Epicranius:includes frontalis connected by galea & occipitalis aponeurotica covers forehead‚ no bony attachments galea aponeurotica skin of eyebrows and root of raises eyebrows (as in surprise); nose wrinkles forehead skin horizontally Occipitalis back of head occipital and temporal bones galea aponeurotica pulls scalp posteriorly Corrugator supercilii
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The skeleton is designed in such a way that the delicate parts of the body are protected. These parts are major organs‚ the brain is protected by the skull‚ the lungs and heart are protected by the ribs and the vertical column protects the spinal cord. For example you will see this happen in many sports such as boxing‚ the skull protects the brain from impact of a punch during a fight. Support/ Shape: The skeletal system gives the human body structure. It supports the internal organs
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6. What are the 2 main divisions of the skeletal system? Differentiate between the 2 and what bones are within each. The two are Axial Skeleton and Perpendicular Skeleton. Axial Skeleton contains the skull‚ hyoid bone‚ auditory ossicles‚ vertebral column‚ sternum bone‚ and ribs. The Perpendicular skeleton contains the shoulder girdles‚
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