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The Human Musculoskeletal System
The document discusses the human musculoskeletal system, detailing the types of bones (long, short, flat, irregular, and sesamoid) and their functions such as providing support, protection, and enabling movement. It also explains the different types of muscles (smooth, cardiac, and skeletal) that facilitate movement, and describes joints, ligaments, and tendons that connect bones and muscles. Overall, it emphasizes the importance of bones and muscles in maintaining body structure and function.
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The Human Musculoskeletal System
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- 3. Organ system that gives humansthe ability to move using their muscular and skeletal systems
- 4. Skeletal Muscular Joints, ligaments and tendons TheMusculoskeletal System
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- 6. The bones arewhat gives the body shape. Bones support our bodies. Babies have more than 300 bones and adults have 206 bones.
- 7. Underneath your skin thereare 5 types of bones in the human body. These are . . . Long Bones Short Bones Flat Bones Irregular Bones Sesamoid Bones
- 8. Long Bones Includes having abody which is longer than it is wide. They are usually somewhat curved for strength. The femur - a long bone Tibia Fibula Examples include femur, tibia, fibula, humerus, ulna and radius
- 9. Short Bones The carpals - ashort bone Roughly cube-shaped and have approximately equal length and width Providing support and stability with little movement. Examples include ankle and wrist bones
- 10. Flat Bones The scapula - aflat bone a thin shape/structure and provide considerable mechanical protection and extensive surfaces for muscle attachments.
- 11. Irregular Bones Vertebrae - irregular bones Bonesin the body which do not fall into any other category, due to their non- uniform shape. Consist of cancellous bone, with a thin outer layer of compact bone. Good examples of these are the Vertebrae, Sacrum and Mandible (lower jaw).
- 12. Sesamoid Bones The patella (kneecap) – a sesamoid bone Short or irregular bones, imbedded in a tendon. It passes over a joint which serves to protect the tendon. Examples common to everyone include the patellae (kneecaps).
- 13. What do you thinkwe would look like without bones? Bones provide the framework for the body. Bones protect the body organs. Bone helps the body move in different directions and different ways
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- 15. A typical bonehas an outer layer of hard or compact bone, which is very strong, dense and tough! Inside this is a layer of spongy bone, which is like honeycomb, lighter and slightly flexible. In the middle of some bones is jelly- like bone marrow, where new cells are being produced for the blood.
- 16. Muscular Muscles are alsonecessary for movement: They're the masses of tough, elastic tissue that pull our bones when we move.
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- 19. Smooth Muscle Involved in involuntarymotion, for example the smooth muscle of the eyes helps them focus without the prompt of the nervous system. No striations and has cells that are described as spindle shaped. Examples include stomach and bladder
- 20. Cardiac Muscle Makes up thethick, inner layer of the heart. Enables the heart muscle to pump continuously and involuntarily without ever resting. Promotes the circulation necessary to sustain the entire body.
- 21. Skeletal Muscle Called striatedmuscle is part of what comprises the musculoskeletal system, which connects muscles and bones for voluntary body movements. Attached to both ends of a bone by the tendons.
- 22. Joints, ligaments and tendons JointsLigaments Tendons
- 23. The ones between thecarpals of the wrist, are found where bones meet as flat surfaces Allow for the bones to glide past one another in any direction.
- 24. Are where twoor more bones meet; They allow you to move.
- 25. Such asthe one between the first metacarpal and trapezium bone, permit 360 degree motion by allowing the bones to pivot along two axes. Such as the elbow and knee, limit movement in only one direction so that the angle between bones can increase or decrease at the joint.
- 26. Form theonly ball and socket joints in the body. Have the freest range of motion of any joint in the body – they are the only joints that can move in a full circle and rotate around their axis.
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