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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

Why do ribs have joints?

There are joints in the ribs. There are the joints of the sternum, the joints of ribs, and the joints of costal cartilages.

What if your humerus is an example of what type of bone?

The humerus bone is the long bone in your upper arm. In simple terms, it goes from your shoulder down to your elbow. But heres the names for all the bones is conects to starting from the shoulder area:

The humerus bone connects to two parts of the scapula bone (shoulder blade) which are the acromoin and the coracoid process. Near the elbow, the humerus bone connects with the olecranon process and the head of the radius.

http://wiki.answers.com/The_humerus_bone_connects_with_what_other_bones#ixzz18mh8t0oH

Is the ulna proximal or distal to the radius in directional position?

The humerus is proximal to the radius. The humerus is the upper arm bone, and the radius is the main bone of the forearm.

What are the 2 long bones with large joints?

Although your question is not precise, but I'll answer it

1- The knee joint which is a biaxial synovial joint of the condyloid variant

it is formed by the 2 long bones femur & tibia

2- The elbow joint which is a uniaxial synovial joint ( hinge variant )

it is formed by three long bones humerus, radius, and ulna

Short term effects of exercise?

Exercise will make the muscle more effective and more efficient.
However different types of exercise will have different effects upon the muscles exercised. For example high intensity low duration exercise will produce strength, size and power gains while low intensity long duration exercise will produce endurance type benefits.
Tone; Refers to the state of readiness of a muscle. This is the state that a muscle is in when it is relaxed and how able it is to respond to its task. An unused, untrained muscle will have poor tone and will respond slowly and with greater difficulty to a task than a trained muscle.Posture; Refers to the way in which we hold our bodies when sitting, walking or running. Regular exercise performed correctly will encourage good posture which enables muscles to work efficiently and will help to prevent injuries.Hypertrophy; Is when a cell, in this case a muscle cell, increases in size through growth. Extreme hypertrophy may result in the cells splitting to create new ones.Atrophy; Is when a muscle shrinks due to injury or lack of use. so that is the short term effect of exercise on the muscular system.

What are the bottom 2 pairs of ribs called?

The lowest two pairs are known as floating ribs.

Which protect internal organs?

The important functions of the muscular system in the human body are described as follows:

1. Movements

Skeletal muscles help in the voluntary movements of each and every human body part. Active contraction of these muscles occurs at the expense of energy, which creates a force that moves the body parts.

2. Posture and stability

Human skeleton is composed of bones and the joints that are formed between them. Skeletal muscles play a major role in stabilizing human skeleton. They also help in maintaining proper posture of human body.

3. Heat production

As already stated, active contraction of muscles requires energy. Hence, muscles use a great amount of body's total energy. Due to this the body's metabolic rate is increased, producing a large amount of heat in the body.

4. Circulation

Cardiac muscles are responsible for forcing the blood out of the heart and pumping it throughout the human body.

How many bones are there in new born baby and in an adult?

A baby has about 300 bones or in other words 270 bones in their body. An adult has 206 bones in their body. A baby has more bones in their body because as they grow up they need these bones to fuse together causing them to be bigger and most likely stronger normally That's why a baby has more bone than an adult does.

How mamy bones are in the human body?

There are 30 bones in the skull.

Although it might look like one shaped hollow bone, the skull is actually made up of 30 different separate bones.Some of these bones protect your brain, while others make up the structure of your face. If you touch beneath your eyes, you can feel the ridge of the bone that forms the hole where youe eye sits.

therer are only 22 bones in the skull 8 cranial and 14 facial bones.

How ribs do girls have?

what do you mean by that? Are you too skinny to have breasts? Or are you not growing breasts for some medical reason or what?

What bones do not have red bone marrow?

Bone marrow is the tissue that is in the center of large bones.

Answer given by: Nora

Why is the skeleton system necessary for survival?

The cardiovascular system is responsible for transporting the necessary nutrients to the individual bones for healthy growth. The bone marrow produces erythrocytes (red blood cells) that deposits in the veins to reach the rest of the body.

What bones of the pelvis do we sit on?

The bone that you sit on is also known as the sits bones. The scientific name is the ischium which is a large swelling posteriorly on the superior ramus of the ischium.

Why can it take months for a bone to heal?

Because a bone in your body is very rough and hard, the bone's healing time depends on the size of the damage, if the bone is completely snapped then it will take longer then a cut because it is bigger damage whereas a cut can seal itself.

The skin as such is made up out of organic soft material where cells can multiply very fast given the right conditions.

Our bone structure is made up out of specialized cells that absorbs a lot of calcium (and other components) that hardens them over time.

A bone heals quite quick though as in having or getting the cells needed in order to "glue" it back together again. This happens much at the same rate as skin cells would heal up.

It is the process of hardening and strengthening this freshly formed new material that is responsible for the long time it takes.

A broken bone will rarely break at the same place again after it is healed though. The fracture actually make the bone structure stronger where it happened due to "scar tissue" or extra bone material being deposited in and around the fracture.

Skin with scar tissue does not experience this effect and will be weaker for a really long time afterwards, often through life, although not much weaker.

Is the RICE treatment applied to broken bones?

it's not a procedure - it's discharge instructions:

Rest, Ice, Compression, Elevation

What is a strong tissue that holds the bones together?

Calcium makes them strong and they are flexible only at the joints.

Can you bend a bone without breaking it?

You can't bend bones easily because they are rigid. Bones give your body rigidity and hence you're able to move. If they could be bent easily you would be similar to some jelly.

But bones do have a certain amount of flexibility to them. An infant has the most bending capacity. But as we age, the substance responsible for flexibility is replaced by non-flexible minerals. But it is important to remember that they are basically rigid and only some amount of flexibility is possible. If the bones are forced to bend beyond that, then it may result in fractures.

What is spongy bone also called?

spongey bone is flexible but can break very easily. Isnt science fascinating.

What causes holes in your bones?

It can be caused by laying your baby down with a bottle at night or poor diet (too many sweets, for example). Poor dental hygiene such as not brushing their teeth daily can also cause problems. Seek professional advice from a dentist.

What is the dome shaped bone of the skull called?

The parietal and temporal bones form the sides and uppermost portion of the dome of the cranium, and the frontal bone forms the forehead

What is a benefit of blood cord over bone marrow for transplant?

These two transplants are similar because they use stem cells as their way to cure a person's malignant disease. The only big difference is stem cells used in cord blood transplant come from a newborn's umbilical cord. This cord is commonly referred to as cord blood and it is similarly effective as the stem cells found in bone marrow.

One cord blood might not be enough to cure an adult. An adult needs two units of cord blood to get cured.