Skeletal System

Polycythemia vera is the condition described when the red blood cell mass is above normal ranges. Polycythemia can occur in a number of conditions, including hereditary, secondary (smoking), and primary.

Skeletal mass increases dramatically during childhood and adolescence, typically peaking in early adulthood. The period of bone growth and development is highest during the teenage years, with bone density continuing to increase until around the late 20s.

Cartilidge is a type of bone just like the stuff in our noses and ears it is softer than bone.

It is lighter than bone, and fishes with this kind of skeleton don't sink, even thou they lack the swim bladder the heavier bone fishes use for balancing their weight in water.

Your body have 12 pairs of rib bones on either side. First rib is horizontal. Then lower ones go on getting more and more oblique. Such 7 pairs of ribs are attached to Manubrium sterni and sternum bone. Eighths is attached to seventh andninthis attached to eighth. Tenth is attached to ninth. Eleventh andtwelfthare flow-ate ribs. First is attached to Manubrium sterni and second to junction of Manubrium sterni with sternum. Some times there is extra pair of rib is there attached to last cervical vertebra called as cervical rib.

The articulation of two or more bones is called a joint. Joints are where bones come together and allow movement in the body.

No, a carpal bone is not considered an irregular bone. Carpal bones are classified as short bones because of their cube-like shape and their role in providing flexibility and movement in the wrist. Irregular bones have complex shapes and do not fit into the other bone classification categories.

The distal end of a long bone is the end farthest from the center of the body, while the proximal end is the end closest to the body's center. These ends are important for articulating with other bones and facilitating movement at joints.

More C-14 is found in new bone because it is continually being replenished in living organisms through the intake of carbon in the form of food and respiration. Once an organism dies, it no longer absorbs new C-14, causing the levels to gradually decrease as it decays over time.

A bimalleolar ankle fracture involves fractures in both the lateral and medial malleoli, which are the bony prominences of the ankle joint. This type of fracture typically results from twisting or rotational injuries to the ankle and may require surgical intervention for proper alignment and healing.

Compact bone is the outer most part of the bone. It's dense, strong and made up of many layers. But bones are not solid all the way through- yellow marrow is found within the hallowed out walls of compact bone.

Spongy bone is only found on the ends of bones. Spongy bone isn't really spongy; really it's hard but it has lots of holes- which gives it the appearance of a sponge. Spongy bone is where red marrow is kept. Spongy bone is where blood is made!

Fun Fact: the ribs are made completely of spongy bone.

If bone remodeling did not occur, a long bone at the end of adolescence would likely be structurally weak and prone to fractures. This process is crucial for maintaining bone strength, shape, and integrity by removing old bone and replacing it with new bone tissue. Without remodeling, the bone would lack the necessary strength and density needed to support the body.

The Sharpey's fibers anchor the periosteum to the bones. These collagen fibers are embedded in the bone matrix, helping to secure the periosteum in place and maintain the connection between the bone and its outer covering.

The facets on the transverse processes of thoracic vertebrae articulate with the tubercles of the ribs to form joints called costovertebral joints, which enable movement of the ribs during respiration. These articulations play a crucial role in the mechanics of breathing and provide structural support to the thoracic cage.

Ribs are long curved bones that form the rib cage, protecting vital organs like the heart and lungs. There are 12 pairs of ribs in the human body, and they attach to the spine at the back and connect to the sternum at the front. The ribs also play a role in breathing by expanding and contracting to allow the lungs to inflate and deflate.

Vitamin D is widely distributed in bones, cartilages, and fat depots in the body. It plays a crucial role in maintaining healthy bones and teeth by aiding in calcium absorption. Inadequate levels of vitamin D can lead to bone disorders like rickets or osteoporosis.

Yes, the wrist has a range of motion that allows it to rotate completely in a circle. This rotation is made possible by the articulation between the radius and ulna in the forearm and the carpal bones in the hand.

A. Support

The skeleton provides the framework for the body. Bones provide the basic shape and structure for the body. What do you think we would look like if we didn't have bones? Pretty silly right? The bones are like the beams inside of a building, and all of our organs, muscles and skin are organized around the bones, just like the walls of a building. The mandible and maxilla support the tooth. Bones of the lower of the lower limbs, pelvis and vertebral column hold up the body.

B. Protection

The skeleton protects organs in the body. Bones can cover and protect many of out major organs. They are like an armor that protects our insides.1. cranium: protects the brain

2. ribs/sternum: protects the lungs, heart and some digestive organs

3. pelvis: protects and supports the digestive and reproductive organs

4. spinal column: protects the spine

C. Blood Cell Production.

Inside of the long bones in our bodies, there is a cavity that is filled with a substance called Bone Marrow. In this tissue, new blood cells are produced, and damaged blood cells are repaired. Red bone marrow produces red blood cells, white blood cells and other blood elements.

D. Movement.

The bones are the levers that help the body move in different directions and in different ways. The bones by themselves can't move without the muscles that are connected to them.

E. Mineral Storage.

Mineral is a substance that the body needs to carry out all of our bodily functions like thinking, breathing and moving around. One of the minerals that the body needs is calcium. Calcium is a major part of bone, and this is where the body stores its calcium. It is very important to make sure you eat enough calcium each day because if you don't get enough calcium, your body will take the calcium it needs from your bones. The less calcium the bone has, the weaker it will become.

F. Fat Storage.

Triglyceride (fat) is stored in the form of yellow bone marrow in the medullary cavity of bone. This fat is used by body as a source of energy whenever required.

Unspecified obstruction of renal pelvis and ureter refers to a blockage in the tubes that carry urine from the kidney to the bladder, without specifying the cause or location of the obstruction. This can lead to urine build-up in the kidney, causing pain, infection, and potential damage to the kidney if left untreated. Further evaluation may be needed to determine the underlying cause of the obstruction.

The name of the joint that is between C1 & C2 is the atlantoaxial joint. C1 is the atlas and C2 is the axis. The type of joint is called a pivot joint, and often referred to as the no-no joint, because it is used to rotate your head left and right, as in saying 'no'.

The curved area on the hip bone below the posterior inferior iliac spine is called the greater sciatic notch. It is a large notch that is located on the posterior aspect of the hip bone and forms part of the greater sciatic foramen.

Pirates are most famously associated with the skull and crossbones flag, also known as the Jolly Roger. This flag would often be hoisted to strike fear into their victims as they approached.

Yes, the ulna is a bone that is part of the appendicular skeleton. It is one of the two bones in the forearm, with the other being the radius. Together, the ulna and radius play a crucial role in forearm movement and support.

The majority of the bone you see is actually extracellular matrix but dispersed within it are cells called osteoblasts. These are usually either individual cells or in very small groups but they are not in any specific locations within the bone.

The atlas (C1) is the cervical vertebra that holds up the head. It is designed to support the weight of the skull and allow for a wide range of motion for movements such as nodding.

In general, bone names are not capitalized unless they are named after a specific person or place. So, "humerus" would typically be written in lowercase, unless you are referring to the specific bone or using it in a title where capitalization is required.