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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

Do males and females have the same number of bones?

Yes. Both males and females have exactly the same bone structure, including the same number of ribs. The only difference is that the female skeleton is usually smaller, the bones are more rounded, and the hips are lower and wider.

An air-filled cavity within a bone that is lined with mucous membrane is?

A sinus is an air-filled cavity within a bone that is lined with mucous membrane. Sinuses help to humidify and filter air as it passes through the nasal cavity.

What is the bendiest bone in your body?

the most fragile bone in the human body is the spine protecting the spinal cord which if snaps causes immediate death

which makes it so important

answered by a 10 year old who is learning about this in school

Why tibia is homologous with radius of forearm?

Ulna is medial to radius in the forearm and tibia is medial to fibula in the shank. However it is tibia which is homologous to radius (not fibula), because the form of those two bones are the same.

What type of tissue makes up the appendicular skeleton?

The appendicular skeleton is primarily made up of bone tissue (osseous tissue). This includes bones of the limbs (arms and legs), shoulder girdle, and pelvis. These bones provide structure, support, and attachment points for muscles.

What bones make up the humerus?

Supraglenoid tubercle, Scapular notch, Acromion process, Coracoid process, Superior border, Glenoid cavity, Lateral border, Subscapular fossa, Supraspinous Fossa, Superior Angle, Spine, Infraglenoid tubercle, Infraspinous fossa, Medial border, Scapular notch and Inferior angle.

What is a junction between two bones called?

A junction between two bones is called a joint. Joints allow for movement and flexibility within the skeletal system.

What is a bone infarct?

A bone infarct is a condition where blood flow to a specific area of bone is disrupted, leading to tissue death due to lack of oxygen. This can result in pain, restricted movement, and potential complications if not treated promptly. Treatment may involve addressing the underlying cause and managing symptoms.

Why is bone marrow primarily red in infants?

Infants grow relatively fast and need quite a lot of red blood cells, which are only produced in red bone marrow. As the infants grow older, much of the red bone marrow is gradually replaced by yellow bone marrow containing a special kind of fat that gives it its yellowish color. If the body needs more red blood cells than the remaining red marrow is capable of producing, some of the yellow marrow changes to red marrow.

Processes on the femur and tibia that form the knee joint?

The femur has two processes that help form the knee joint: the lateral and medial condyles. These articulate with the corresponding condyles of the tibia, which are referred to as the lateral and medial tibial plateaus. Together, these processes form the main components of the knee joint.

What structure of a long bone that stores nutrients?

The structure of a long bone that stores nutrients is the yellow marrow, which is primarily composed of adipose (fat) tissue. It is found in the central cavity of long bones, such as the femur.

What is the bone called in your ear?

Three bones in your ear hammer, stirrup, anvil.

What bones are used in a free throw?

In general, all of the bones of the lower body are used for kicking a ball. Even the arms could be considered part of the the action as they are used for balance. Certainly the hips and the bones of the legs are all involved, as are the bones of the foot.

What is the bone that cannot resist strong forces but provides the only fixed support for the pectoral girdle?

The clavicle, commonly known as the collarbone, is the bone that cannot resist strong forces but provides the only fixed support for the pectoral girdle. It acts as a strut that holds the scapula in place, allowing the upper limb to move freely.

Which bone bears the infraorbital foramen?

The infraorbital foramen is located in the maxillary bone of the skulls. This opening is the passageway for the Infraorbital artery, vein, and nerve.

Are all bones white?

No, not all bones are white. Bones can be different colors depending on factors such as age, health, and mineral content. Some bones can appear yellow, red, or brown due to various pigments and minerals present in the bone tissue.

Costochondritis is an imflamation of the cartilage?

Costochondritis is commonly known as inflammation in a rib or cartilage in the sternum. This is expressed as a common cause of chest pain. It affects the axial skeleton. Within the axial skeleton the condition affects the sternum, which is also known as the breastbone. The three parts of the sternum are classified as the manubrium, body and xiphoid process. However, it commonly only affects the manubrium and body because of the specific coastal cartilage in that area. Costochondritis is also considered to be a part of the musculoskeletal.

The causes of costochondritis are very sporadic. It is most commonly due to repeated damage to the cartilage in the sternum. This could be from a micro trauma that is continued through a lengthy period of time. It could also be due to repeated stress, which would lower ones immune system severely. Thus, leading to an infection that could cause inflamed tendons in ones sternum. Specifically viral and repertory infections are the most common causes of costochondritis. Athletes in particular may suffer from costochondritis because of certain physical activity, which would lead to cumulative trauma disorder. This is a repeated strain or injury to the body and it is identified as irritation to a specific body part. After a traumatic injury to the chest, patients may experience costochondritis due to the hypersensitivity to that area. Although, many times the cause of costochondritis is unknown. Costochondritis can also be a symptom of other generalized diseases such as arthritis, fibromyalgia, chronic fatigue syndrome, and inflammatory bowel disease. In rare cases it can be a cause of a viral infection.


The relationship between the temporal bone and the ear?

The petrous part of the temporal bone encloses the structures of the inner ear. Inside the tympanic cavity within the petrous part is the middle ear. The external acoustic canal ends at the tympanic membrane, which leads to the inner ear. Mastoid air cells within the mastoid process are connected to the tympanic cavity.

Which of the following bones is not included within the lower limb?

the femur, tibia, filbula, humerous, radius, and ulna are all long bones. Anything else is not.

What is a skeleton diagram?

a diagram (or labeled, organized, clearly set out image most likely a drawing) is a good way to help you find the bones of an organism and know the names. This would be a helpful way to study the skeletal system of almost any known (extinct or not) organism. it is a clear, steady way to lay out the skeletal system :))) peace

Can locking your knees make you pass out?

It definitely can, but it does not always occur. Depending on how your knees are shaped, standing with your knees bent for just 10 minutes can sometimes make you faint. If your knees are shaped a certain way, then locking your knees pinches a major artery just slightly, stopping a small amount of blood to stay in your legs instead of going to your brain. The longer you stand like that, the less oxygen goes to you brain. First you will feel woozy, then you might feel very nauseous, and then you wake up on the ground, wondering what happened. Just recently during a choir performance I, not knowing any of this yet, stood with my knees locked the entire time, because it uses less muscle. I felt like I was going to throw up, saw colors, and then I woke up on the floor with three other choir members trying to help me up.

The area of a long bone where growth in bone length occurs is the?

The growth in bone length of a long bone occurs at the epiphyseal plate, also known as the growth plate. This area is found at the ends of long bones and is responsible for new bone formation during childhood and adolescence, ultimately determining the final length of the bone.

How many pairs of ribs articulate directly to the manubrium?

According to Ross and Wilson Anatomy and Physiology, 2 pairs

What are the paired bones of the skull?

The paired bones of the skull include the parietal, temporal, and zygomatic bones. These bones are present in pairs, with one on each side of the skull providing structural support and protection for the brain and sensory organs.