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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 is the significance of the cervical and the lumbar regions?
They are sections of the spine. They are used in medical terminology to distinguish between the four areas of the spine and back: the cervical region (neck), the thoracic region (upper torso/shoulder blade area), the lumbar region (waist/low back area) and the sacral/coccygeal region (lowest part of back and tail bone/coccyx).
It is often in these two areas, the cervical and the lumbar, areas that people have injuries, strains, sprains, and chronic pain. The cervical area is where whiplash occurs and the lumbar and lumbo-sacral areas are the most common regions for low back injuries and pain.
How long is recovery time from a torn acl ligament?
Recovery time from a torn ACL ligament can vary, but typically takes around 6 to 9 months. Physical therapy is important during recovery to rebuild strength and stability in the knee. It's important to follow the recommendations of healthcare professionals to ensure proper healing and prevent reinjury.
How many more bones do women have then men?
Human beings (men women and children) all have the same number of bones, although children have more bones which are unfused with their neighbours than adults.
If there were a difference, TV shows like "CSI" or "Bones" would simply count the bones of a crime scene skeleton to determine the sex of the victim. As it is, they have to look for minor differences such as wider pelvises and less prominent features. These shows also look for the degree of fusion of bones, wear and tear on the joints etc. to guesstimate the age.
Some anthropologists feel that there is a different "feel" to the bones of men and women, insisting that the skull of a man, even in ancient times, feels "rougher".
The folk lore that men have less bones than women comes from the Biblical myth of creation where one of Adam's ribs was taken to form the first woman.
What are the 5 types of joint in the skeletal system?
- Long bones -- Femur, radius
- Short bones -- wrists, etc.
- Flat -- Skull
- Sesamoid -- patella
- Irregular -- vertebrae
sesamoid bones, flat bones, long bones, short bones, and irregular bones
Is the skeletal system serve as the framework of the body?
Yes, the skeletal system serves as the framework of the body by providing support, protection for internal organs, and allowing movement through its interconnected bones and joints. It also plays a crucial role in the production of blood cells and mineral storage.
What is the function of the ribs of fish?
i thought about that question too and i kept looking for an answer but this is all i could find:
The function of the floating ribs is not fully understood. A floating rib could theoretically provide some protection to the contents of the abdominal cavity, but it isn't as necessary as the ribs which are attached to the sternum.
What is poor formation of bone called?
this is the complex term.pathology depends on the factor .for eg...congenital malformation of bone is called as dysostoses.
What do you have more bones or more muscles?
You have 212 bones in your body total (including the ones in your ears) and about 660 musceles in your body, but not exactly because people can't agree what defines a muscle...maybe some of our muscles may end up like Pluto and not be called muscles anymore...but for now, on 4/13/10, there are more muscles.
What part of the ear are the 3 tiny bones located?
The 3 auditory ossicles are "little bones" found in the middle ear. They are the smallest bones in the human body, and each one has its own name:
· tympanic side = malleus or hammer
· middle = incus or anvil
· oval window side = stapes or stirrup
Their purpose is to transmit sound vibrations from the tympanic membrane (eardrum) to the oval window.
The 3 auditory ossicles are "little bones" found in the middle ear. They are the smallest bones in the human body, and each one has its own name:
- tympanic side = malleus or hammer
- middle = incus or anvil
- oval window side = stapes or stirrup
How many phalanges are in each toe?
The phalanges are the bones that make up the fingers of the hand and the toes of the foot. There are 56 phalangesin the human body, with fourteen on each hand and foot.
Do babies or adults have more bones?
Newborn babies have around 300 bones. This is necessary because a naturally delivered baby needs to be, frankly, somewhat compressible in order to fit through the birth canal, which is a comparatively small space. Having more bones means that there are more points at which the baby's body could bend and deform in order to squeeze through the birth canal (for example, babies are typically born with cone-shaped heads because the bones of the skull are not fused, allowing it to bend and become narrow enough for birth). However, obviously, an adult would not want all these random bending points all over his/her body, since they represent weak points in the skeletal structure. Thus, throughout young adulthood (until the around mid-20s), the separate bones (mostly in the skull/cranium and in the pelvic area) fuse together into single units, resulting in fewer total bones overall.
Children have more bones than adults because their skeletons are growing. This growth takes place at the epiphyseal growth plates. These growth plates are usually at the end of the bones which terminate the bones at a joint. Other growth plates are in areas such as the skull. The skull's growth plates join each other in "suture lines" which are like interlocking fingers.
Once the skeleton has completed growing, the growth plates calcify and fuse together. This fusion results in few bones in the adult skeleton.
Children are born with over 300 bones, many of which fuse together as they grow. The average adult is left with 206 bones.
What are four major organ systems in the skeletal system?
The skeleton is usually divided into two major parts:
1) The axial skeleton, consisting of a) the skulland b) the spinal column and ribs
2) The appendicular skeleton consisting of a) the pectoral (shoulder) girdle and the arms, and b) the pelvic (hip) girdle and the legs.
See:
http://www.mnsu.edu/emuseum/biology/humananatomy/skeletal/skeletalsystem.html
The answer to this questions 'what are the 4 major parts of the human skeleton' is:
1. Bones 2. Cartilage 3. Joints 4. Ligaments
Why does cartilage cover the epiphysis of bones?
Cartilage is a substance that makes up fingernails and parts of the outer ear.
AnswerCartilage is a very firm, tough, rubbery, flexible tissue that forms the skeleton of an embryo and most of the skeleton of an infant. As an infant grows, most of the cartilage is converted to bone.
Cartilage cushions bones at the joints where it acts as a shock absorber, especially in the knee and hip. In the joints, it suffers from wear and thinning as we grow older. It connects muscles to bones and forms parts of the body such as the larynx, spinal disks, outside parts of the ear, parts of the throat and parts of the nose. It has no blood vessels or nerves within it and must rely on fluid in the joint cavities to keep it lubricated.
What is specific name of thigh bone?
it is call thigh bone of course!!!
NO lah just kidding
look down!!!!
look down
it is femur!!!!!!!!!!!!!!!!!!!!!!!!!
and this time it is true thank u for coming !!!!!
What animals have a clavicle bone?
Some do, some don't; if the animal only needs to move it's forelimbs back and forward, then it doesn't (horses, other hoofed animals). In animals like apes, they need to move their arms in all directions (not only forward and backward but side to side, too) so they need one. :D
What is the effect of osteoclast cells on blood calcium level?
Osteoclastic activity increases the blood calcium level. Osteoblastic activity nullify the effect of osteoclastic activity. Both go hand in hand to rearrange the orientation of calcium lines in the bones, as per requirement of the stresses on the bones.
Why are bones of children more flexible than the elderly?
Bones cannot grow. A child's bones have more cartilage (like the stuff that makes your ears hold their shape). Cartilage can grow. As children reach their adult height bones become more bone and less cartilage.
What are the short bones of the human skeletal system?
The short bones in the human skeletal system include the bones of the wrist (carpals) and ankle (tarsals). These bones are roughly cube-shaped and provide support and stability to the joints they are a part of.
Which bone forms the lower jaw?
There are fourteen bones that make up the face of the skull. We can feel and see the outline of only a few of these bones. These bones include the zygomatic bones (cheekbones), the nasal bones of the bridge of the nose, the maxilla (upper jaw), and the mandible (lower jaw).
What is a sclerotic lesion in the left iliac crest?
Sclerotic Lesions are slow growing bone growths, in which a formation of the "sclerotic bone" and its surrounding area are affected. Sclerotic lesions display as a thickening of the bone. A bone can show an increased thickening due to any number of reasons and generally further medical evaluation should be done to determine why. Sclerotic lesions can show in the long bones or the spinal vertebra, but it can also show in jaw, skull, fingers…, as I will show below, it can be found in most, of the body's bones. This is caused by an increase in the deposit or calcium the affected area of the bone. Medical testing, imaging studies (i.e., x-rays, CAT scans, MRI...) can show the extent of the calcification and the area or areas involved. Additional medical studies can help determine if there is an underlying disease or medical disorder that may be the cause. Testing may also determine if a history of injury or injuries is the cause.
As I said sclerotic lesions can form in and affect any bone; it is NOT limited to the lumbar (L5) area. However, metastatic diseases, such as Breast cancer, Prostate cancer, Lymphoma, Renal Osteodystrophy, and Myeloma are the most common forms of spinal malignancies, and sclerotic spinal tumors. The metastatic disease of the spine may show blastic lesions on vertebra, often appearing more ivory than white on radiographs. These and other carcinomas, cause most sclerotic metastases; the prior metastatic diseases, as well as bladder, carcinomas of Nasopharynx, Neuroblastoma, and Bronchial Carcinoid tumor may be also sclerotic. Those lesions caused by Myeloma are customarily Lytic. A Hemangioma is the most common form and cause of spinal tumor; however a hemangioma is a benign tumor.
(If you-or a family member-have a sclerotic lesion on the lumbar (L5); it may be due to any number of reasons, from an old injury to that of kidney disease/malignancy. In any case, if you are questioning its cause; you should have a bone scan to examine the vertebra and the surrounding area and bone formations further. Many of these lesions are benign, and a scan may well prove this to be so. But regardless, further testing may bring you piece of mind, and possible treatment.)
Having a bone scan for unexplained pain may be helpful, even wise. This exam can help your doctor find the cause of back or hip pain. It can help prevent additional bone damage, and it can help to diagnose and prevent the spread of cancer to other bones, your spine, hip(s), ribs… Even find the primary source of cancer if you don't know already, breast, prostate, kidney, lung, thyroid...) A bone scan can help find problems months, if not years before it becomes fatal. These tests often show what an X-ray may miss, such as a fracture of a hip or vertebra. It may even show bone fracture and infection caused by other conditions, such as Paget's disease. Discuss this exam with your doctor.
Sclerotic Lesions are generally a reaction to a progressive health disorder(s), disease(s) or injury/injuries. The following are some of the health disorders/diseases which can cause Sclerotic Lesions (not all effect the spine but some can): Osteoma (non-cancerous bone tumor); Osteosarcoma(malignant neoplasm/malignant bone tumor) or other metastatic disease(s); i.e., breast or prostate cancer (breast cancer can metastasis to the lungs or the spine and prostate cancer can metastasis to the hip or the spine); Hyperparathyroidism(causing Osteopenia and bone demineralization); McCune Albright's Syndrome/Fibrous Bone Dysplasia (a non-inherited bone disease); Paget's Disease of the bone (long-lasting chronic condition); chronic diffuse sclerosingOsteomyelitis (benign Lytic Lesions/bone tumors due to an infection of the bone cortex and the medullary portion of the bone); Hemangiomas (A hemangiomas on the spinemay be misdiagnosed as spinal multiple sclerosis. These are benign lesions that are characterized by vascular spaces lined with endothelial cells which can cause these tumors. About one-half of osseous hemangiomas are vertebral, most are found in the thoracic spine and one-fifth are found in the skull's calvarium.); Sickle Cell Anemia (This disease causes common complications that may have long-term effects on the growth of bone; but infection and infarction can take place within muscle and soft tissue, without affecting the bone.); Renal Osteodystrophy(This can show changes showing sclerosis covering the thoracic and/or lumbar vertebra on the side (or both sides) of the effected kidney, indicating metastatic disease. Lesions will show on radiographs of the spine, showing hemispherical sclerotic areas of the kidney (ies) and adjacent affected areas. If the spinal column is affected it may show narrowing of the ventral disc space.); congenital disorders - Pyknodysostosis (Osteopetrosis acro-osteolytica an unusual form causing Osteosclerosis and short stature in individuals), Osteopoikilosis aka Albers-Schonberg disease(This is a rare inherited benign condition causing sclerosing bony dysplasia with multiple enostoses on the bones.); Osteopetrosis (Which means "stone bone," is a rare inherited disorder.); vertebral compression fractures(This often shows up in the long leg bones, feet and vertebra.); bone trauma(s)/injury(ies); Fluorosis (This affects the medulla, periosteal, and prominent tendons which attach to the lumbar and pelvis.); Florid Osseous Dysplasia (t (This causes sclerotic lesions is the jawbone.), and more…
What sections of the spine are the ribs attached to?
The ribs are attached at the thoracic region of the spinal column. There are twelve vertebra that make up the thoracic spine. Which can be referred to as T1, the top of the thoracic spine through the bottom of the thoracic spine T12 or T1 - T12.
The twelve pair of human ribs are classified as True ribs, False ribs and Floating ribs depending on the ribs pair location on the thoracic spine.
Bones do not turn into dust on their own. In certain conditions, such as extreme heat or prolonged exposure to the elements, bones may deteriorate or become brittle, but they do not naturally turn into dust.
What type of joint uses cartilage to connect bones?
A cartilaginous joint uses cartilage to connect bones. This type of joint allows for slight movement and can be found in the spine and between the ribs and sternum. Cartilaginous joints provide support and flexibility to the skeletal system.
How many bones make up your arm?
Upper arm: Humerus = 1
Forearm: Radius and ulna = 2
Wrist (carpal bones): Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate = 8
Metacarpals: 5
Phalangies: 14 (3 in every finger but only 2 in thumb)
A grand total of 30!
