Attribute particular functions of the skeletal system to certain components or structures

The skeletal system is the body system composed the bones, cartilages, ligaments and also other tissues that perform necessary functions for the human being body. Bone tissue, or osseous tissue, is a hard, thick connective organization that develops most of the adult skeleton, the inner support framework of the body. In the locations of the skeleton where totality bones move against each various other (for example, joints prefer the shoulder or between the bones of the spine), cartilages, a semi-rigid type of connective tissue, provide flexibility and also smooth surfaces because that movement. Additionally, ligaments written of dense connective tissue surround these joints, tying skeletal facets together (a ligament is the thick connective organization that affix bones to other bones). Together, they carry out the complying with functions:

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Figure 6.1.1 attributes of the skeletal system.Support, Movement, and also Protection

Some attributes of the skeletal system are much more readily observable 보다 others. As soon as you move you can feel just how your bones assistance you, facilitate her movement, and protect the soft organs of her body. Simply as the steel beams of a building administer a frame to assistance its weight, the bones and also cartilages of your skeletal system compose the scaffold the supports the remainder of her body. There is no the skeletal system, you would certainly be a limp fixed of organs, muscle, and also skin. Bones facilitate activity by serving as points of attachment for your muscles. Bones additionally protect internal organs from injury by covering or bordering them. For example, her ribs safeguard your lungs and heart, the skeleton of your vertebral pillar (spine) protect your spinal cord, and also the skeleton of her cranium (skull) protect your brain (see number 6.1.1).

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Mineral and also Fat Storage, Blood cabinet Formation

On a metabolic level, bone organization performs several an essential functions. Because that one, the bone tissue acts together a reservoir for a variety of minerals important to the functioning of the body, especially calcium, and phosphorus. These minerals, incorporated into bone tissue, have the right to be released back into the bloodstream to keep levels necessary to support physiological processes. Calcium ions, for example, are vital for muscle contractions and also are involved in the infection of nerve impulses.

Bones likewise serve as a site for fat storage and also blood cell production. The distinctive connective tissue that fills the internal of many bones is described as bone marrow. There space two types of bone marrow: yellow bone marrow and also red bone marrow. Yellow bone marrow contains adipose tissue, and the triglycerides stored in the adipocytes that this tissue can be exit to serve as a source of energy for other tissues of the body. Red bone marrow is wherein the production of blood cells (named hematopoiesis, hemato- = “blood”, -poiesis = “to make”) take away place. Red blood cells, white blood cells, and platelets space all produced in the red bone marrow. Together we age, the circulation of red and also yellow bone marrow alters as seen in the figure (Figure 6.1.2).


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Figure 6.1.2Bone Marrow: bones contain variable amounts of yellow and/or red bone marrow. Yellow bone marrow stores fat and red bone marrow is responsible for developing blood cells (hematopoiesis).

An orthopedist is a physician who specialization in diagnosing and treating disorders and also injuries regarded the musculoskeletal system. Part orthopedic problems can it is in treated through medications, exercises, braces, and also other devices, yet others might be best treated with surgical treatment (Figure 6.1.3).


Figure 6.1.3 – eight Brace: an orthopedist will periodically prescribe the usage of a brace the reinforces the basic bone framework it is being supplied to support. (credit: Juhan Sonin)

While the origin of the word “orthopedics” (ortho- = “straight”; paed- = “child”), literally method “straightening the the child,” orthopedists deserve to have patient who range from pediatric to geriatric. In recent years, orthopedists have also performed prenatal surgical treatment to correct spina bifida, a congenital defect in i m sorry the neural canal in the spine the the fetus fails to close totally during embryologic development.

Orthopedists commonly treat bone and joint injuries yet they additionally treat other bone problems including curvature of the spine. Lateral curvatures (scoliosis) can be severe enough to slip under the shoulder blade (scapula) forcing the up together a hump. Spinal curvatures can additionally be extreme dorsoventrally (kyphosis) leading to a hunch earlier and thoracic compression. These curvatures often appear in preteens as the an outcome of bad posture, abnormal growth, or indeterminate causes. Mostly, lock are easily treated through orthopedists. As world age, gathered spinal pillar injuries and diseases favor osteoporosis can likewise lead to curvatures of the spine, hence the stooping you periodically see in the elderly.

Some orthopedists sub-specialize in sporting activities medicine, i m sorry addresses both straightforward injuries, such together a sprained ankle, and facility injuries, such together a take it rotator cuff in the shoulder. Treatment can variety from exercise to surgery.


Section Review

The significant functions the the skeletal mechanism are body support, facilitation the movement, security of internal organs, warehouse of minerals and fat, and blood cabinet formation.

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Critical thinking Questions

Suppose your red bone marrow could not be formed. What features would her body not be able to perform?Suppose your osseous tissue could not save calcium. What functions would certainly your body not be able to perform?

Glossary

bone (osseous) tissuehard, dense connective organization that forms the structural aspects of the skeletoncartilagesemi-rigid connective tissue found on the skeleton in areas where flexibility and also smooth surfaces assistance movementhematopoiesisproduction that blood cells, which occurs in the red marrow the the bonesligamenta dense connective tissue that attach one whole bone to an additional whole boneorthopedistdoctor that specializes in diagnosing and also treating musculoskeletal disorders and injuriesred bone marrowconnective organization in the inner cavity that a bone whereby blood cell development (hematopoiesis) take away placeskeletal systemorgan device composed of bones, cartilage and ligaments that provides for movement, support, protection, mineral and also fat storage, blood cells formationyellow bone marrowconnective organization in the interior cavity that a bone wherein fat is stored

Solutions

Answers for an important Thinking Questions

Without red bone marrow, you would certainly not be able to produce blood cells. The red bone marrow is responsible for forming red and white blood cells and platelets. Red blood cells deliver oxygen to tissues, and also remove carbon dioxide. There is no red blood cells, your tissues would certainly not be able to produce ATP making use of oxygen. White blood cells play a role in the immune mechanism fighting off foreign invaders in our human body – without white blood cell you would not have the ability to recover indigenous infection. Platelets space responsible because that clotting your blood once a ship ruptures. There is no platelets you would bleed come death and also die. The calcium in osseous tissue gives mineral assistance to bones. Without this calcium, the bones room not rigid and also cannot be supportive. The calcium in osseous organization is also crucial storage site, that can release calcium as soon as needed. Other body organ systems rely on this calcium for activity (specifically, muscle contraction and neural signaling). There is no calcium storage, blood calcium levels change dramatically and affect muscle contraction and also neural signaling.