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Skeletal System

The skeletal system provides definite shape and mechanical support to the body, and it also helps in movement and locomotion. Ask questions about the skeletal system and bones here.

14,490 Questions

What are the functions of executive support system?

Executive Support System (ESS) is software for businesses. The functions include turning the company's data into summarized reports from various departments. The executives of the company can quickly look over up-to-date data regarding billing, staffing, cost analysis, and more.

Why do bones fuse in joints damaged by rheumatoid arthritis?

As the cartilage between the joints is eliminated the bones begin to touch and wear directly into each other, the body will attempt to repair worn bone by growing more bone onto the bone on either side of the joint, this leads to the joint becoming more and more difficult to move as a lip of bone forms around the areas of friction. the result is that in time the joint gets so painful that it stops being moved leading to muscular atrophy which leads to it not being able to be moved. in the mean time the areas where bone is being replaces are in direct contact and start to join together as if it was one bone being rebuilt.

The vomer forms part of the nasal septum?

That's correct. The vomer is a thin, flat bone that forms the lower and posterior part of the nasal septum, helping to separate the left and right nasal cavities in the skull.

The lumbar section of a typical human spine contains how many vertebrae?

The lumbar section of a typical human spine contains five vertebrae, known as L1 to L5.

Only movable bone of the skull?

The mandible, also known as the jawbone, is the only movable bone of the skull. It is attached to the skull by the temporomandibular joint, allowing it to move up and down for functions such as chewing and speaking.

Light from a star is collected by a concave mirror How far from the mirror is the image of the star if the radius of curvature is 150 cm?

The image of the star will be 67.5 cm from the mirror because focal length is the raidus of curvature multiplied by 2 or (2)(C). So, therefore, 150 / 2 will give the focal length which would also be the answer.

What bone provides support for the body?

The spine, specifically the vertebral column, provides support for the body. It is made up of individual bones called vertebrae that stack on top of each other to form a flexible yet strong structure that helps maintain posture and protect the spinal cord.

Hit bone between wrist and elbow on a solid metal edge it hurt extremely and right after a hard bump appeared on the bone what is it?

Most likely, the "bump" is a hematoma. The soft tissue was damaged, and the blood vessels in the area form a mesh to contain, protect, and heal the damage (if you need detailed info, let me know.) It is most likely just your body doing it's job. If you have pain with resistance or counter pressure to a normal function of that part of your arm - extreme pain - then see a doctor. Also check for peripheral blood flow or capillary refill. Pinch your fingernail; it should turn back to pink within a count of two or three (in seconds).

Use R.I.C.E:

Rest

Ice (ten minutes on, ten off - use a sock between the skin and ice if you're uncomfortable:)important!! must do the ice thing...sorry, I know it kinda sucks.

Compression (wrap it with an ace wrap - a sock works too...over the ice)

Elevation

Hope you feel better!

What prominent bone marking on each coxa do you sit on?

You sit on the ischial tuberosity of each coxa. This is the most prominent bone marking and provides support when sitting.

What part of the body is most commanly used for a bone marrow biopsy?

The most common site for a bone marrow biopsy is the posterior iliac crest, which is the back of the hip bone.

What surface articulates Inferior process of the superior thoracic vertebrae?

There is no inferior process on any vertebrae, thoracic or not. There is an inferior articular facet. The inferior articular facet would articulate with the superior articular facet of the vertebrae just superior to it.

Does old break show on bone scan?

An old fracture may not show up on a bone scan if it has completely healed with no active inflammation or increased metabolic activity present at the site. The presence of old breaks on a bone scan largely depends on the healing process and the resolution of any previous damage to the bone.

Muscle is attached to bone by what method?

Muscle is attached to bone by tendons, which are strong, fibrous tissues that connect muscle to bone. Tendons are composed of collagen fibers and transmit the force generated by muscle contraction to move the bone. This attachment allows the muscular system to work in conjunction with the skeletal system to produce movement.

Does a yellowtail have bones?

Yes, it has an inner Skelton and a very define back bone. Very similar to most oceanic fish.

What are long bones adapted for?

Long bones have adapted for stability and strength and to bear the weight of the body. The perfect example of a long bone would be the femur. The femur has a long shaft, known as the diaphysis, which is made up of compact bone. The epiphysis, or the ends of each bone are filled mostly with spongy bone except at the very outer layers and the femoral head. The trabeculae of the bones are oriented along stress lines, or areas where the stress placed on bone (like the weight of your body as you land a jump on your skateboard) can be directed out from your pelvis, down the femoral head, along the femoral neck and on down the shaft of the bone to end up being transferred your down towards your feet. So, in essence the long bones of the body are made perfectly for the transferring of stressors, or kinetic force along pathways that will do less damage, and cushion an impact.

What is the scientific name of the thy bone?

the scientific name of the thigh bone is the femur

Pain under ribs on right side of stomach?

There are many things that can cause pain under the right side by the ribs. It can be problems with the liver, gall bladder, appendix, Crohn's disease, hernia, acid reflux, rib injury, or other issue.

What muscle that extends from the ribs to the pubis and compresses the abdomen is the?

The muscle that extends from the ribs to the pubis and compresses the abdomen is the Rectus Abdominis, commonly known as the "abs" or "six-pack" muscles. It helps in flexing the spine and stabilizing the core during movements.

Which structure allows the diaphysis of the bone to increase in length until early childhood as well as shaping the articular surfaces?

The growth plate, also known as the epiphyseal plate, allows the diaphysis of the bone to increase in length until early childhood. During growth, the cartilage in the growth plate is replaced by bone. The articular surfaces are shaped by the action of osteoblasts and osteoclasts during development and growth.

What protcts bones from getting worn down?

Bone tissue is constantly being broken down and rebuilt through a process called bone remodeling. This process is regulated by cells called osteoclasts, which break down old bone, and osteoblasts, which form new bone. In addition, a healthy diet rich in calcium and vitamin D, along with regular weight-bearing exercise, can help maintain strong and healthy bones and prevent them from getting worn down.

The paranasal sinuses lighten the skull and act as resonance chambers for speech?

Yes, that is correct. The paranasal sinuses are air-filled cavities within the bones of the skull, which help to reduce the weight of the skull and provide resonance for sound during speech.

Why is there no transverse coastal facets on the last two thoracic vertebrae?

The simplest answer is because the 11th and 12th ribs (the last two) don't articulate with the transverse process of their corresponding vertebrae. Thus, transverse coastal facets are not needed.

What is the correct order of materials in the human body in increasing radiodensity air liver fat blood bone muscle?

Air, fat, muscle, blood, liver, bone. The order is based on increasing radiodensity, with air being the least dense and bone being the most dense.