Attribute certain functions the the skeletal device to certain components or structures

The skeletal device is the body system composed that bones, cartilages, ligaments and also other tissues the perform crucial functions for the human body. Bone tissue, or osseous tissue, is a hard, dense connective tissue that creates most that the adult skeleton, the interior support structure of the body. In the locations of the skeleton where whole bones move against each various other (for example, joints prefer the shoulder or in between the bones of the spine), cartilages, a semi-rigid form of connective tissue, provide flexibility and also smooth surfaces because that movement. Additionally, ligaments written of thick connective tissue surround this joints, tie skeletal facets together (a ligament is the dense connective tissue that connect bones to other bones). Together, they do the adhering to functions:

Figure 6.1.1 functions of the skeleton system.Support, Movement, and also Protection

Some features of the skeletal system are an ext readily observable than others. Once you move you deserve to feel how your bones support you, facilitate her movement, and also protect the soft guts of your body. Simply as the stole beams of a building administer a scaffold to support its weight, the bones and also cartilages of her skeletal system compose the scaffold that supports the remainder of her body. Without the bones system, you would be a limp mass of organs, muscle, and skin. Skeletal facilitate movement by serving as points of attachments for your muscles. Bones also protect interior organs native injury by extending or surrounding them. Because that example, your ribs protect your lungs and heart, the skeletal of her vertebral obelisk (spine) safeguard your spinal cord, and the skeletal of her cranium (skull) safeguard your mind (see figure 6.1.1).

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Mineral and also Fat Storage, Blood cell Formation

On a metabolic level, bone organization performs several an essential functions. Because that one, the bone organization acts together a reservoir for a variety of minerals important to the work of the body, particularly calcium, and also phosphorus. These minerals, included into bone tissue, can be released earlier into the bloodstream to keep levels required to assistance physiological processes. Calcium ions, because that example, are vital for muscle contractions and also are involved in the infection of nerve impulses.

Bones also serve as a website for fat storage and also blood cabinet production. The distinctive connective organization that fills the inner of most bones is referred to as bone marrow. There room two varieties of bone marrow: yellow bone marrow and also red bone marrow. Yellow bone marrow consists of adipose tissue, and also the triglycerides stored in the adipocytes of this tissue have the right to be exit to serve as a resource of power for other tissues that the body. Red bone marrow is wherein the manufacturing of blood cells (named hematopoiesis, hemato- = “blood”, -poiesis = “to make”) takes place. Red blood cells, white blood cells, and also platelets space all developed in the red bone marrow. As we age, the circulation of red and yellow bone marrow changes as checked out in the number (Figure 6.1.2).

Figure 6.1.2Bone Marrow: skeleton contain variable amounts of yellow and/or red bone marrow. Yellow bone marrow stores fat and also red bone marrow is responsible for producing blood cell (hematopoiesis).

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

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

While the beginning of words “orthopedics” (ortho- = “straight”; paed- = “child”), literally method “straightening that the child,” orthopedists deserve to have patient who range from pediatric come geriatric. In current years, orthopedists have even performed prenatal surgery to correct spina bifida, a congenital defect in which the neural canal in the spine that the fetus fails to close fully during embryologic development.

Orthopedists generally treat bone and joint injuries however they also treat other bone problems including curvature the the spine. Lateral curvatures (scoliosis) can be severe enough to slip under the shoulder tongue (scapula) forcing that up as a hump. Spinal curvatures can likewise be too much dorsoventrally (kyphosis) leading to a hunch earlier and thoracic compression. This curvatures often show up in preteens together the an outcome of poor posture, abnormal growth, or indeterminate causes. Mostly, castle are easily treated by orthopedists. As civilization age, accumulated spinal column injuries and also diseases choose osteoporosis can also lead to curvatures that the spine, for this reason the stooping you sometimes see in the elderly.

Some orthopedists sub-specialize in sporting activities medicine, i beg your pardon addresses both basic injuries, such together a sprained ankle, and facility injuries, such as a take it rotator cuff in the shoulder. Therapy can variety from practice to surgery.

Section Review

The significant functions that the skeletal system are body support, facilitation the movement, security of inner organs, storage of minerals and fat, and also blood cell formation.

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Critical thinking Questions

Suppose her red bone marrow can not be formed. What features would your body not be able to perform?Suppose her osseous tissue can not keep calcium. What functions would your human body not have the ability to perform?


bone (osseous) tissuehard, dense connective organization that creates the structural aspects of the skeletoncartilagesemi-rigid connective tissue found on the skeleton in locations where flexibility and smooth surfaces assistance movementhematopoiesisproduction the blood cells, which wake up in the red marrow of the bonesligamenta thick connective organization that affix one entirety bone to one more whole boneorthopedistdoctor that specializes in diagnosing and treating musculoskeletal disorders and injuriesred bone marrowconnective organization in the internal cavity the a bone whereby blood cell formation (hematopoiesis) takes placeskeletal systemorgan device composed that bones, cartilage and also ligaments that offers for movement, support, protection, mineral and also fat storage, blood cell formationyellow bone marrowconnective organization in the inner cavity of a bone whereby fat is stored


Answers for critical Thinking Questions

Without red bone marrow, you would not be able to produce blood cells. The red bone marrow is responsible for creating red and white blood cells as well as platelets. Red blood cells move oxygen to tissues, and also remove carbon dioxide. Without red blood cells, her tissues would certainly not have the ability to produce ATP utilizing oxygen. White blood cell play a role in the immune system fighting off foreign invaders in our body – without white blood cells you would certainly not have the ability to recover indigenous infection. Platelets are responsible because that clotting her blood as soon as a courage ruptures. There is no platelets you would bleed come death and also die. The calcium in osseous tissue provides mineral assistance to bones. There is no this calcium, the bones space not rigid and cannot be supportive. The calcium in osseous tissue is also crucial storage site, that have the right to release calcium once needed. Other organ systems depend 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 neural signaling.