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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 better an axial wraith or a twin hammers?

The choice between an Axial Wraith and a Twin Hammers largely depends on your preferences in terms of driving style and terrain. The Axial Wraith excels in rock crawling and has a strong aftermarket support for upgrades, while the Twin Hammers offers a more versatile performance for both crawling and racing on various terrains. If you prioritize crawling ability, the Wraith might be better; if you want a blend of speed and versatility, consider the Twin Hammers. Ultimately, both are great options with unique strengths.

What are four types of cartilage?

The four types of cartilage are hyaline cartilage, elastic cartilage, fibrocartilage, and articular cartilage. Hyaline cartilage provides support and flexibility, found in structures like the nose and trachea. Elastic cartilage, which contains more elastic fibers, offers strength and flexibility, as seen in the ear and epiglottis. Fibrocartilage, the toughest type, provides tensile strength and absorbs shock, commonly found in intervertebral discs and the pubic symphysis.

Does the bone grow in length your entire life?

Bones primarily grow in length during childhood and adolescence through a process called endochondral ossification, which occurs at growth plates. These growth plates gradually close after puberty, typically around the late teens to early twenties. While bones can continue to change in density and shape throughout life, they do not grow in length after these growth plates close. However, the body can respond to stress or injury by remodeling bone, but this does not increase length.

Are these abs or ribs?

To determine whether you're looking at abs or ribs, consider the location and appearance. Abs, or abdominal muscles, are typically more prominent in the front of the torso and can be well-defined in individuals with low body fat. Ribs, on the other hand, are part of the skeletal structure that can be seen along the sides and back, usually appearing more pronounced when a person is lean. If the focus is on the front and shows a muscular grid pattern, it's likely abs; if it's a bony outline on the sides, it's ribs.

What does non-specific sclerotic lession mean?

A non-specific sclerotic lesion refers to an area of hardened tissue that appears on imaging studies, such as X-rays or MRIs, but does not have a clear or definitive diagnosis associated with it. Sclerosis indicates an increase in bone density or abnormal hardening, which can arise from various conditions, including infections, tumors, or inflammatory processes. The term "non-specific" suggests that further investigation is needed to determine the underlying cause of the lesion, as it does not point to a specific disease or condition.

What are the total no of bones in ox?

An adult ox typically has around 207 bones in its skeleton. This number can vary slightly depending on the individual and breed. The skeletal structure supports the ox's weight and facilitates movement, similar to other large mammals.

What is located within the thorax?

The thorax contains vital structures including the heart, lungs, and major blood vessels such as the aorta and pulmonary arteries. It also houses the trachea, esophagus, and structures of the rib cage that protect these organs. The thoracic cavity is separated from the abdomen by the diaphragm, which plays a crucial role in respiration. Additionally, the thorax contains lymphatic structures and nerves that contribute to the function of the respiratory and circulatory systems.

What is anterior left first rib?

The anterior left first rib refers to the first rib on the left side of the body, which is the uppermost rib in the rib cage. It plays a crucial role in protecting the thoracic cavity and supporting the shoulder girdle. The first rib is shorter and broader than the other ribs and has unique anatomical features, such as grooves for blood vessels and muscles. Its positioning is significant in various medical assessments and procedures, including those involving the brachial plexus and subclavian vessels.

What skull bones holds a newborns skull together?

A newborn's skull is composed of several bones that are not fully fused, allowing for flexibility during birth and growth. The primary bones include the frontal bone, two parietal bones, two temporal bones, and the occipital bone. Additionally, the skull features fontanelles, or soft spots, where the bones have not yet fused, which help accommodate the baby's brain growth. These fontanelles typically close as the child grows, leading to a more rigid skull structure.

What forms a long bone's shaft and the outer part of its two ends?

The shaft of a long bone, known as the diaphysis, is primarily composed of compact bone, which provides strength and support. The outer part of its two ends, called the epiphyses, is made up of a thin layer of compact bone surrounding a core of spongy (trabecular) bone, which contains red marrow and helps reduce the weight of the bone while providing space for blood cell production. The epiphyses also articulate with other bones at the joints.

Can you sale ribs cooked the day before?

Yes, you can sell ribs that were cooked the day before, provided they have been properly stored in the refrigerator or freezer to maintain food safety. It's important to ensure they are reheated to the appropriate temperature before serving. Additionally, local health regulations may have specific guidelines regarding the sale of previously cooked foods, so it's wise to check those as well.

How much percent of animals have bones?

Approximately 5% of animal species have a backbone, classifying them as vertebrates. The vast majority, around 95%, are invertebrates, which do not possess a backbone or bones. While some invertebrates, like certain mollusks, have hard structures, they do not have a skeletal system like vertebrates. In summary, only a small fraction of animal species have bones.

What instrument would you use to indicate the relative horizontal position of the mandible to the maxilla?

To indicate the relative horizontal position of the mandible to the maxilla, a facebow is typically used. This instrument helps in transferring the relationship of the dental arch to the maxillary articulator, ensuring accurate positioning for dental prosthetics. By capturing the spatial orientation, the facebow aids in achieving proper occlusion and alignment in dental treatments.

What are the two bones that form the shoulder joint called?

The two bones that form the shoulder joint are the humerus and the scapula. The humerus is the long bone of the upper arm, while the scapula, commonly known as the shoulder blade, provides a socket for the humerus to articulate with, forming the glenohumeral joint. This joint allows for a wide range of motion in the shoulder.

Does your ribs get any bigger as you grow?

Yes, your ribs can get bigger as you grow, particularly during childhood and adolescence when your body is developing. The rib cage expands to accommodate the growing lungs and other organs, and changes in body composition can also affect rib size. However, once you reach adulthood, the ribs typically remain the same size, although factors like weight gain can influence their appearance.

How many ligaments in the skeletal system?

The human skeletal system contains around 900 ligaments. These fibrous connective tissues connect bones to other bones at joints, providing stability and support to the skeletal structure. The exact number can vary slightly between individuals due to anatomical variations.

How does the human skeleton help with storage of minerals?

The human skeleton acts as a reservoir for essential minerals, primarily calcium and phosphorus, which are critical for various bodily functions. Bone tissue contains mineral deposits that can be released into the bloodstream as needed to maintain mineral balance and support metabolic processes. This storage capability not only helps in maintaining bone strength but also plays a vital role in regulating mineral levels throughout the body. Thus, the skeleton serves both structural and physiological functions in mineral homeostasis.

Can you break a rib from throwing up?

Yes, it is possible to break a rib from throwing up, especially if the vomiting is severe or accompanied by intense coughing or straining. The forceful contractions of the abdominal muscles during vomiting can put significant pressure on the ribcage, leading to fractures. While it's not common, individuals with weakened bones or pre-existing conditions may be at higher risk. If someone experiences severe pain or difficulty breathing after vomiting, they should seek medical attention.

A thick band of bone forms around a broken bone as it heals In time the thickened band disappears Explain how this extra bone can disappear over time?

The thick band of bone that forms around a broken bone, known as a callus, is initially created to stabilize the fracture and support healing. Over time, as the bone fully heals, the body undergoes a remodeling process where excess bone is resorbed by specialized cells called osteoclasts. This process helps restore the bone's original shape and strength, allowing the thickened area to gradually diminish as the bone returns to its normal contour.

What is a malunion?

A malunion is a type of bone healing that occurs when a fractured bone heals in an incorrect position, leading to misalignment. This can result in functional impairment, pain, or deformity of the affected limb. Malunions often require medical intervention, such as corrective surgery, to realign the bone and restore proper function. Proper monitoring and treatment of fractures are essential to prevent malunion.

How can you tell the cervical vertebrae from the rest?

Cervical vertebrae can be identified by their distinct features: they are smaller and have a unique structure with transverse foramina in the transverse processes, which allow for the passage of vertebral arteries. The first two cervical vertebrae, the atlas (C1) and axis (C2), have specialized shapes that enable pivotal head movements. Additionally, cervical vertebrae typically have a bifid spinous process, except for C7, which has a longer, non-bifid spinous process.

An internal skeleton made of bone and cartilage?

An internal skeleton made of bone and cartilage is known as an endoskeleton. This type of skeletal system provides structural support, protects internal organs, and facilitates movement through the attachment of muscles. It is characteristic of vertebrates, including mammals, birds, reptiles, amphibians, and fish. The combination of bone and cartilage allows for flexibility and strength, adapting to various physical demands.

What gives the spongy mesophyll its name?

The spongy mesophyll gets its name due to its porous structure, which resembles a sponge. This layer of tissue, found in the leaves of plants, contains air spaces that facilitate gas exchange, allowing carbon dioxide to diffuse in and oxygen to diffuse out during photosynthesis. The spongy mesophyll's loosely arranged cells maximize the surface area for gas exchange while still providing some structural support to the leaf.

What is 6mm diameter enchondroma within the most medial aspect of the medial femoral condyle?

A 6mm diameter enchondroma in the most medial aspect of the medial femoral condyle is a benign cartilaginous tumor located in the bone of the knee joint. Enchondromas typically arise from cartilage and are often asymptomatic but can occasionally cause pain or discomfort. Their presence in the femoral condyle may necessitate monitoring or treatment, depending on symptoms and potential for growth. Evaluation by a healthcare professional, often with imaging studies, is essential for appropriate management.

What are the functions of lower jaw?

The lower jaw, or mandible, serves several essential functions. It is crucial for chewing and grinding food, facilitating the mechanical digestion process. Additionally, the mandible plays a key role in speech by helping to articulate sounds and words. It also supports the lower teeth and contributes to the overall structure of the face.