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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
As the body grows is the skeleton replaced with hard bone tissue?
The Cartilage (baby bones) join together to make the bones that you have now.
Femur and humerus are what shape?
The femur is the biggest bone in the body and is known as the thigh bone in common terms. The humerus is the bone that is attached to The scapula by the glenohumeral joint.
The person with bone cancer would have talked to their doctor to find out what type of bone cancer they have and how long they've had it. A prognosis (within reason) would also be given by a doctor. It's important to have faith in whatever religion you believe in. Many doctors have been absolutely astonished at how a patient has gone into remission or even lived a very long life from bone cancer when all odds were against CERTAIN individuals that were given only a few months to live. There are many treatments to add longevity to a bone cancer patient's life. I have pasted this important information for you and please look at the contact information at the bottom at the new drugs that they are trying on patients and having some good success rates.
Questions about cancer?
1-800-4-CANCER
# What are bones made of and how do they function? Mature bones are made up of three types of tissue: compact tissue (the hard outer portion of most bones); cancellous tissue (spongy tissue inside the bones that contains bone marrow, which makes blood cells); and subchondral tissue (smooth bone tissue of the joints). A layer of cartilage covers subchondral tissue to cushion the movement of joints. Bones support and protect internal organs, act as levers and braces for muscles to produce movement, and produce and store blood cells in the bone marrow. # Are all bone tumors cancerous? Bone tumors may be benign (noncancerous) or malignant (cancerous). Benign bone tumors are more common than malignant ones. Both types may grow and compress healthy bone tissue and absorb or replace it witabnormal tissue. However, benign tumors do not spread and are rarely life-threatening. Cancer that arises in the bone (primary bone cancer) is not the same disease as cancer that spreads to the bone from another part of the body (secondary bone cancer). Primary bone cancer is rare, with approximately 2,500 new cases diagnosed each year in the United States. More commonly, bones are the site of tumors that result from the spread (metastasis) of cancer from another organ, such as the breasts,
lungs, and prostate. This fact sheet deals with primary bone cancer. # What types of cancer arise in the bones? The most common type of bone cancer is osteosarcoma, which develops in new tissue in growing bones. Another type of cancer, chondrosarcoma, arises in cartilage. Evidence suggests that Ewing's sarcoma, another form of bone cancer, begins in immature nerve tissue in bone marrow. Osteosarcoma and Ewing's sarcoma tend to occur more frequently in children and adolescents, while chondrosarcoma occurs more often in adults (see chart). Cancers of the BoneTypes of Cancer Tissue of Origin Common Locations Common Ages Osteosarcoma Osteoid Knees, upper legs, upper arms 10-25 Chondrosarcoma Cartilage Pelvis, upper legs, shoulders 50-60 Ewing's Sarcoma Immature nerve tissue,
usually in bone marrow Pelvis, upper legs, ribs, arms 10-20 # What are possible risk factors for bone cancer? Although scientists are not certain what causes bone cancer, a number of factors may put a person at increased risk. These cancers occur more frequently in children and young adults, particularly those who have had radiation or chemotherapy treatments for other conditions. Adults with Paget's disease, a noncancerous condition characterized by abnormal development of new bone cells, may be at increased risk for osteosarcoma. A small number of bone cancers are due to heredity. For example, children with hereditary retinoblastoma (an uncommon cancer of the eye) are at a higher risk of developing osteosarcoma. # What are the symptoms of bone cancer? Pain is the most common symptom of bone cancer. However, symptoms may vary depending on the location and size of the cancer. Tumors that occur in or near joints may cause swelling or tenderness in the affected area. Bone cancer can also interfere with normal movements and can weaken the bones, occasionally leading to a fracture. Other symptoms may include fatigue, fever, weight loss, and anemia. None of these symptoms is a sure sign of cancer. They may also be caused by other, less serious conditions. It is important to check with a doctor. # How is bone cancer diagnosed? To diagnose bone cancer, the doctor asks about the patient's personal and family medical history and does a complete medical exam. The doctor may suggest a blood test to determine the level of an enzyme called alkaline phosphatase. A large amount of alkaline phosphatase can be found in the blood when the cells that form bone tissue are very active-when children are growing, when a broken bone is mending, or when disease or a tumor causes production of abnormal bone tissue. Because high levels of this enzyme can normally be found in growing children and adolescents, this test is not a completely reliable indicator of bone cancer. X-rays can show the location, size, and shape of a bone tumor. If x-rays suggest that a tumor may be cancer, the doctor may recommend special imaging tests such as a bone scan, a CT (or CAT) scan, an MRI, or an angiogram. However, a biopsy-the removal of a sample of tissue from the bone tumor-is needed to determine whether cancer is present. The surgeon may perform a needle biopsy or an incisional biopsy. During a needle biopsy, the surgeon makes a small hole in the bone and removes a sample of tissue from the tumor with a needle-like instrument. In an incisional biopsy, the surgeon cuts into the tumor and removes a sample of tissue. Biopsies are best done by orthopedic oncologists-doctors experienced in the diagnosis of bone cancer. A pathologist-a doctor who identifies disease by studying cells and tissues under a microscope-examines the tissue to determine whether it is cancerous. # What are the treatment options for bone cancer? Treatment options depend on the type, size, location, and stage of the cancer, as well as the person's age and general health. Surgery is often the primary treatment. Although amputation of a limb is sometimes necessary, pre- or post-operative chemotherapy has made limb-sparing surgery possible in many cases. When appropriate, surgeons avoid amputation by removing only the cancerous section of the bone and replacing it with an artificial device called a prosthesis. Chemotherapy and radiation may also be used alone or in combination. Because of the tendency for Ewing's sarcoma to metastasize rapidly, multidrug chemotherapy is often used, in addition to radiation therapy or surgery on the primary tumor. # Are new treatments being studied? To develop new, more effective treatments, the National Cancer Institute is sponsoring clinical trials (treatment studies with cancer patients) in many hospitals and cancer centers around the country. Clinical trials are a critical step in the development of new methods of treatment. Before any new treatment can be recommended for general use, doctors conduct clinical trials to find out whether the treatment is safe for patients and effective against the disease. Various forms of cancer treatments using surgery, radiation therapy, and chemotherapy for bone cancer are being tested in clinical trials. Patients who are interested in learning more about participating in clinical trials can call the Cancer Information Service or access the clinical trials page of the National Cancer Institute's Web site at http://www.cancer.gov/clinical_trials on the Internet. # # #National Cancer Institute (NCI) Resources ; Cancer Information Service (toll-free) : Telephone: 1-800-4-CANCER (1-800-422-6237) : TTY: 1-800-332-8615 ; Online : NCI's Web site: http://www.cancer.gov
LiveHelp, NCI's live online assistance:
https://cissecure.nci.nih.gov/livehelp/welcome.asp
How many pairs of ribs do rat have?
13 pairs which consists of 7 pair "true" ribs and 6 pair "false" ribs.
What is the main job of a females reproduction system?
The main function of the female reproductive system is to create new life forms aka babys.
If you break a bone can you break it back in place?
You can put the bone back where it should be which would enable healing but no, you cannot break it back into place. That would further damage the bone and cause more pain in the long run. You may however "snap" it back into place which has the ability to sound (and feel) like the bone breaking a second time.
What is the scientifc name for the bone that make up the wrist?
As a group they are called the carpals. Each carpal has their own name, such as scaphoid and capitate.
What process makes the yellow bone marrow turn into red bone marrow?
sudden decrease in red bone marrow, where more bone marrow needed to produce blood cells.
What are the short bones in the human skeleton?
The body consists of long bones, flat bones, irregular bones, short bones and sesmoid bones. The short bones include bones in the wrist and foot.
What is the Purpose of the bones in the human body?
Well, without bones, your body would be like jelly. the muscles themselves cant sustain all the weight of your body, so that's when the bones come in and do their job to hold everything up and move around :)
Why does the funny bone tingle when you hit it?
Well your funny bone is in your elbow area and it has multiple nerve endings. The funny feeling could be pain, or a tickling feeling!
A rib is an example of a bone?
Short bones are bones that are the same length and width, like those in the palm of you hand. The common image of a bone (like you'd give to a dog) are long bones.
Based on this, ribs are too long to be a short bone.
What is the smallest tube in the body called?
The smallest tube in the body is called a capillary. Capillaries are tiny blood vessels that connect arterioles and venules, facilitating the exchange of oxygen, nutrients, and waste products between blood and tissues. Their thin walls allow for efficient diffusion, making them essential for the body’s circulatory system.
What are the three small bones linked together to connect to the eardrum to the inner ear?
auditory ossicles
How does the skeletal system help the blood system?
The skeletal systemn holds up the body and keeps it strong so you can move. But without muscles you wouldn't be able to anyway. But the skeletal sytem hold veins and organs to be intact and wont allow them to get trapped.
Does spongy bone genrally have central canals?
No, the canals are present in the compact bone (surrounds the spongy bone) and are called Haversian canals.
What is an internal lump in front of the left ear?
Sounds like swollen glands but good idea to get your doctor to check it out.
Yes, a squirrel does have bones. They have ribs, a cranium, back bones, bones in their arms and feet, EVERYWHERE!
Are there 8 cervical vertebra?
The cervical vertebra which make up the cervical spine are similar to other vertebra. They are numbered C1-C7.
C1 is formed somewhat differently as it forms a "ring" that supports the skull. It has almost no body. It is called the Atlas. (Atlas carried the world on his back).
C2 has a "tooth" called the dens or odontoid process. The dens sticks up like a finger into the "ring". The two together also allow the head to move. For example, when a person looks to the left or right. C2 is called the Axis.
C3-C6 all are the same. C7 has a projection called the vertebral prominence. This can be felt near the middle between the scapulae. It is a landmark for C7.
What type of bone is the hyoid?
The hyoid bone (Lingual Bone) is a bone in the neck, and is the only bone in the human skeleton not articulated to any other bone. It is supported by the muscles of the neck and in turn supports the root of the tongue. It's the one who allows the lower jaw to move. Am I right?
