0
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 do you do when you swallow rib bone?
don't worry about it, most likely it will pass or be dissolved
What are the three components and the major parts of each that comprise the skeletal system?
The skeletal system consists of approximately 206 bones, providing the body with structure and support. Let's take a tour of various components that form the skeletal system.
Here's the skull. It has 8 cranial bones that protect the brain. The facial skeleton has 14 bones that provide a framework for the eye sockets, jaws, and teeth. The facial bones provide the framework for the various structures of the face including the overlying muscles, fat and skin.
The vertebral column is composed of 24 individual vertebrae, along with two sets of fused bones called the sacrum and coccyx. In addition to providing support for the trunk of the body, the vertebral column protects the spinal cord. All together, there are 7 cervical, or neck vertebrae; 12 thoracic, or upper back, vertebrae; and 5 lumbar, or lower back, vertebrae.
The sacrum is composed of 5 fused bones, while the coccyx, or tailbone, is typically made up of 3 to 5 bones.
Twelve pairs of ribs form a protective cage for the heart, lungs, and other internal organs.
The first 7 ribs are called true ribs because they attach to the breastbone, or sternum. Ribs 8 through 12 are called false ribs, because they either attach indirectly, or, as is the case with ribs 11 and 12, float and don't attach to the sternum at all.
Now let's take a look at the pair of shoulder blades, or scapulae, and the collar bones, or clavicles. It is very important for the scapulae to be mobile, because they connect to the shoulder joint, which is the most movable joint in the body.
The bones of the upper limb include the humerus, which connects the shoulder with the elbow, the ulna, the radius, the wrist bones or carpals, the hand bones or metacarpals, and the finger bones or phalanges.
To complete our tour, let's take a look at the pelvic girdle, knee, and foot.
The pelvic girdle is formed by a pair of hip bones. Each hip bone is comprised of 3 fused bones, the ilium, ischium, and pubis.
The pelvic girdle connects with the femur or thigh bone at the hip joint.
The femur is the longest bone in the body and is important for bearing the body's weight while standing.
At the knee, the femur articulates with the tibia or shin bone. The tibia bone bears about 85% of the weight through the leg. The fibula does not bear weight, but several muscles attach to it. The patella, or kneecap, is suspended within muscle tendons and glides through a notch at the end of the femur when the knee bends.
And last, but certainly not the least, are the feet. The foot bones, which include the tarsals, metatarsals, and phalanges, are organized into a series of arches that allow the feet to support the body's weight.
Reviewed ByReview Date: 10/06/2008
Thomas N. Joseph, MD, Private Practice specializing in Orthopaedics, subspecialty Foot and Ankle, Camden Bone & Joint, Camden, SC. Review provided by VeriMed Healthcare Network.
What is another name for spine?
It has many improper terms that many people use today, such as; back, neck, cord, etc. In learning about the bones of the body, scientists and teachers recall the spine as the vertebra (vertebrae for plural).
What kind of tissue is the forerunner of flat bones in the embryo?
Hyaline cartilage is the forerunner of long bones in the embryo.
Why are the cartilages rings incomplete?
This is very good question. Which haunted me for decades. If you have no cartilage, then your larynx and bronchi will collapse. If you have full cartilage ring, then your bronchi can not get constricted. Incomplete rings of cartilage has solved the problem. Your bronchi and trachea do not collapse and can constrict also.
How many ribs does an human kids have?
12 pair, same as an adult, although they may not be fully ossified yet.
The zygomatic bone is located in the front part of your skull and is part of your cheeckbone. This bone is near your eye, but located right underneath of it.
What mineral is important for bones and teeth?
I believe it is calcium which is found alot in dairy products
What are the spongy pads found between bones?
The bone is constructed of compact and spongy bone, unless you are referring to the cushioning between bone that bend called joints, you would have to be more specific
Which is bigger radius or ulna?
they are the two bones that make up the lower arm
the ulna is on the same side of the arm as the pinky finger.
The radius is the bone of the forearm that extends from the lateral side of the elbow to the thumb side of the wrist. The radius is situated on the lateral side of the ulna, which exceeds it in length and size.
What is the function of a cervical groove?
it doesn't really do anything it is just a part of the body
What organ is located in the below the rib cage in the center?
I would say your stomach. Not your intestines but your actual stomach. I took some pills one day without eating and had horrid pain right were you are describing and it was literally min after I took them. A nice glass of milk took care of the problem but that would be my best guess.
What is the name of all the bones in your elbow?
The elbow is not in and of itself a bone. It is the joining of the humerus, ulna, and radius-most specifially, the humerus and ulna. The bony point that we think of as the elbow is part of the ulna (one of the forearm bones). It is called the olecranon process. The smaller bumps on the sides are parts of the humerus (upper arm bone). They are called epicondyles.
What is the actual name of your knee cap bone?
Your knee caps are also called Patellae.
Or Patella for a single knee cap.
What are the four sections of the spine?
In human anatomy the spinal column has been divided into four sections for reference and specificity; the cervical spine, the thoracic spine, the lumbar spine and the sacral spine. The Cervical Spine is the section in the neck area comprised of seven vertebrae starting at the base of the skull and counting down the spine. To refer to the individual vertebrae in that area you would again start at the base of the skull with C1, and then count down to the last cervical vetebra, C7. The cervical spine is made up of C1, C2, C3, C4, C5, C6, and C7. The Thoracic Spine is the next section down the back located in the chest area and is comprised of twelve vetebrae. The ribs connect to the thoracic spine and create a strong skeletal structure that protects the vital organs. The vertebrae in the thoracic spine start with the eighth vertebra down which is called T1 and continued through T12. The third major region of the spine, the Lumbar Spine,starts below the thoracic spine with the thirteenth vertebra, L1, and continues through L5 for most people, although it is not uncommon for some people to have a sixth Lumbar verterbra, L6. When you have a low backache, it is usually in the area of the Lumbar Spine since it is the part of the vertebral column that supports most of the body's weight. The final section of the spine continues from the last lumbar vertebra, number seventeen (or eighteen, if there are six in this section) and down to the pelvis. This is called the Sacral Spine and has only one vertebra, the sacrum, called S1, and the coccyx bone which is also known as the tail bone. The sacrum and coccyx are uniquely shaped.
Name a short bone flat bone long bone and an irregiualar bone?
Some examples are: Short bones: carpals and tarsals (bones in your fingers and toes) Flat bones: Calvarium (skull bone), sternum, or scapula Long bones: femur, tibia and fibula (all leg bones) or humerus, radius and ulna (arm bones) Irregular bones: bones that can't fit into the above categories, such as vertebrae (spine), hyoid, maxilla and mandible (jaw), and the bones of your sinuses: ethmoid, zygomatic, and sphenoid There are also sesamoid bones, the most common ones being the patella (kneecap) and pisiform (a bone in your wrist).
