BALL-AND-SOCKET JOINT 1 The Ball-and-Socket Joint HCS/230 January 10‚ 2011 Dr. Mike Liang THE BALL-AND-SOCKET JOINT 2 The Ball-and-Socket Joint Joints are essential in allowing movement of the human body. They are located at the intersection of bones‚ and their structures determine the type of movement that will occur at that location. Each joint contains components
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Knuckle Cracking is not harmful Over many generations‚ many people have been warned by someone‚ that knuckle cracking is bad and it will cause disorder in long run if repeatedly performed. Why many people are in habit of cracking their knuckle is unknown‚ it maybe because it brings sense of relief or they enjoying doing it for some other reasons. Moreover‚ there has been studies where participants were habitually cracking their knuckles and they were compared to people who were non-knuckle crackers
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to move 4. To store calcium and produce blood cells JOINTS: A joint is where two bones meet. They are characterized by the amount of movement they allow. There are three main groups: 1. Immobile: Where the bones are jointed together and don’t move. eg: Bones of the skull 2. Cartilaginous: Where the bones are jointed together by a thick pad of cartilage which act as a shock absorber. eg: Vertebrae of the spine 3. Synovial: They are extremely mobile and complex and are primarily
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OSTEOARTHRITIS The Pathophysiology of osteoarthritis is the affection of articular cartilage‚ along with the synovial fluid in the joint‚ permitting almost frictionless movement of joint bones at their points of contact. The frictional resistance of normal joints is the cartilage layer to absorb the shock associated with joint use. When weight is loaded onto the joint‚ the cartilage layer compresses. Once the weight is removed‚ the cartilage rebounds to its original dimensions. The articular
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7 cervical 12 thoracic 5 lumbar 5 sacrum 3-4 coccyx Atlas vs. axis Joints Atlanto-Axial Joint -Allow for extensive rotary motion at the head (most cervical rotation) -Most mobile vertebral joint -Nod yes‚ shake no -C1 (atlas) doesn’t have spinous process -C2 (axis) upward projection that locks in to atlas—gives ability to shake head Pivot or Trochoid joint Atlantooccipital Joint -First joint of the spinal column -Occipital condyles of skull resting on articular fossa
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three main ones). Wednesday 4th and 5th period: 1. Distinguish between spongy and compact bone in your long bones. 2. How would you define bone? 3. Explain how a joint is formed. 4. Distinguish between a ligament and a tendon. 5. Name the three types of joints and give three examples of each. 6. Explain what a synovial joint looks like and draw it from the Concise Biology Text. (Do not email me the drawing unless you have technology to take a picture of what you drew). Thursday 6th and
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the joint are forced apart. As they move apart‚ the tissue that surrounds the joint stretched. This increase the volume of space between tissues. With an increase in volume the pressure in the synovial fluids drops forming bubbles. When the joint is stretched far enough the pressure drops so low that these bubbles burst‚ producing a popping sound. It takes half and half for the gas to dissolve back into the synovial fluids. Once gas is dissolved it is possible to pop knuckles again. Synovial fluid
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wrist and the tarsals in the ankle. Categorize three different joints found within the vertebrae‚ including the bone markings of each bone and the movements produced by those joints. A joint is a meeting‚ or juncture‚ between two or more bones within the skeletal system. They are classified as synarthrotic‚ amphiarthrotic‚ or diarthrotic‚ based upon how much mobility they provide to that particular part of the body. A synarthrotic joint provides little or no movement‚ whatsoever. The suture lines
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doses of antidepressants – help improve sleep and relieve pain SHOULDER JOINT INTRODUCTION it is a type of synovial joint (ball and socket) it is freely moveable‚ nearly in all directions it is unstable joint (easily dislocate)‚ as the head of humerus articulate with glenoid cavity of scapula a bit shallow‚ so‚ it is compensated by rotator cuff muscles‚ tendons‚ ligaments‚ and the glenoid labrum. BONE OF SHOULDER JOINT 1) Clavicle 2) Scapula 3) Humerus
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September 3‚ 2013 Class 1 Professor Graham Caldwell INTRODUCTION TO KIN 297G Neuromechanics of Human Motion Biomechanics Motor control What would I need to study‚ understand‚ teach the activity? Basics of flight Design of wing suit Control of flight path Muscular requirements Motor learning Execution of rolls‚ somersaults Sensory systems What questions do you have? How would you answer them? Study of Human Motion Clinical medicine (people who have difficulty moving) Sporting environments (people
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