Skeletal System

Osteoblasts exemplify a positive feedback process in bone mineral deposition. When new bone is formed by osteoblasts, they release proteins that stimulate further osteoblast activity and mineral deposition. This creates a cycle where bone formation encourages more bone formation.

A condyloid joint is a type of synovial joint that allows for movement in two planes. It consists of an oval-shaped condyle fitting into an elliptical socket, which enables movements like flexion, extension, abduction, adduction, and circumduction. Examples include the joints found at the wrist and the base of the fingers.

The pituitary fossa is that part of the skull that lies beneath the pituitary gland. Erosion, or thinning, of this bone is a common result of a variety of health conditions. There are a number of small cavities in this region, so if any swelling occurs in this region then there is a large pressure build up, which can cause the fossa to be eroded. Two examples of conditions that might cause erosion of the fossa include a pituitary tumour or nasal polyps.

Meatus-A body opening or passage, such as the opening of the ear or the urethral canal.

*American Heritage Dictionary

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The hamate bone is also sometimes referred to as the unciform bone.

There are 33 Vertebrae, starting from the top (just under skull) there are: 7 cervical vertebrae 12 thoracic vertebrae 5 lumbar vertebrae 5 sacral vertebrae (fused together) 4 coccygeal vertebrae (fused together)

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Hip bone spurs may regrow after surgical removal in some cases, but this is relatively uncommon. However, the presence of underlying conditions that contribute to bone spur formation, such as arthritis, can lead to new bone spur formation over time. It's important to address the underlying cause to help prevent future bone spur growth.

The baby's skull is broken up in to many sections, as the child gets older those pieces fuse together to make one solid structure. Also, baby's are born with out knee caps. Babies are born with 270 bones, as they get older, they have 206.

The pressure in the tissue surrounding the capillary, called interstitial fluid pressure, causes fluids to enter the venous side of the capillary due to the pressure gradient. This pressure helps to balance the forces of filtration and reabsorption in the capillary beds.

The Pelvic Girdle, also called the hip girdle, is composed to two coxal (hip) bones. The coxal bones are also called the ossa coxae or innominate bones. During childhood, each coxal bone consists of three separate parts: the ilium (denoted in purple above), the ischium (denoted in red above), and the pubis (denoted in blue above). In an adult, these three bones are firmly fused into a single bone. In the picture above, the coxal bone on the left side has been divided into its component pieces while the right side has been preserved.

In the back, these two bones meet on either side of the sacrum. In the front, they are connected by a muscle called the pubic symphysis (denoted in green above).

The pelvic girdle serves several important functions in the body. It supports the weight of the body from the vertebral column. It also protects and supports the lower organs, including the urinary bladder, the reproductive organs, and the developing fetus in a pregnant woman.

The pelvic girdle differs between men and woman. In a man, the pelvis is more massive and the iliac crests are closer together. In a woman, the pelvis is more delicate and the iliac crests are farther apart. These differences reflect the woman's role in pregnancy and delivery of children. When a child is born, it must pass through its mother's pelvis. If the opening is too small, a cesarean section may be necessary.

We have two talus bones in our bodies. If the weight is evenly distributed throughout the body, they each take 1/2 the load, or one half the body weight when standing.

The name of the ligament is the "anterior cruciate ligament (ACL)".

---- Spongy bone is also called the cancellous bone which, as the name suggests, is very soft and it protects the bone/fatty marrow. The compact bone, on the other hand serves as a protector of everything within it.

by Shamari K Brown

Jamaica College

5 Arts (2007-2008)

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Procallus is a structure that develops during the early stages of wound healing in plants. It is formed by undifferentiated cells that later differentiate into specific types of cells required for tissue repair and regeneration. The procallus helps to seal the wound and initiate the healing process in plants.

A knee replacement surgery is typically considered when conservative treatments (such as medication, physical therapy, and injections) have not provided relief from knee pain and limitations in daily activities caused by severe arthritis or injury. The decision to replace a knee is usually made after careful consideration of the individual's overall health, level of pain, and functional limitations.

The sequence of processes during bone elongation at the epiphyseal plate includes: proliferation of chondrocytes, hypertrophy of chondrocytes, calcification of the cartilage matrix, death of chondrocytes, invasion of blood vessels and osteogenic cells, and finally ossification of the cartilage leading to bone formation.

The os coxae, also known as the hip bone, is made up of three bones: ilium, ischium, and pubis. These bones fuse together during development to form a single bone in the adult pelvis.

John Horner discovered red blood cells in a Tyrannosaurus rex fossilized leg bone in 1993. This discovery provided evidence that some soft tissues can be preserved in fossils and opened up new possibilities for studying ancient life.

The maxilla and mandible are the facial bones that articulate with teeth. The maxilla forms the upper jaw and holds the upper teeth in place, while the mandible forms the lower jaw and supports the lower teeth.

The large foramen on the inferior aspect of the occipital bone is called the foramen magnum. It serves as a passage for the spinal cord to connect with the brainstem.

On the left side beneath your ribs are your stomach, pancreas, spleen, and part of your colon. These organs play important roles in digestion, blood filtration, and immune function. If you experience persistent pain in this area, it's important to consult a healthcare professional for a proper diagnosis.

When standing normally, most of your weight is transmitted to the ground through your feet and lower limbs. The bones and joints in your legs and feet distribute the weight and provide support to maintain balance and stability. This weight distribution helps keep you upright and mobile.