Skeletal system

Skeletal system definition

As per skeletal system definition, our skeletal system serves as the basic skeleton of the body, and the whole body is formed around the Skeleton’s hard framework. Our skeletal system is made up of all the bones and tissues that are involved with cartilages and joints.

The skeletal system definition further states that it is made up of almost all of the body’s rigid or solid elements. Joints are vital in the skeletal system because they allow for different sorts of motions at different sites. If the skeleton lacked joints, there would be no indication of movement in the human body.

Anatomy of Skeletal System

The skeletal system can be categorised into two parts: the axial system and the appendicular system.

An adult body is mostly made up of 206 separate bones that are grouped into two major divisions:

A- Axial skeleton

As the axial skeleton runs along the body’s centre axis, it is also referred to as the central core of the human body. The axial skeleton is made up of 80 bones, which include:

• Skull Bone – The skull bone in the skeletal system is made up of eight cranial bones fourteen face bones, six auditory ossicles, and the Hyoid Bone
• The Thoracic Cage: consists of 25 thoracic bones, including a breastbone and 24 ribs
• The Vertebral Column Bone: consists of 24 vertebrae bones, the sacrum bone, and the coccyx bone

B-Appendicular skeleton

The appendicular skeleton is made up of 126 bones, which include the following:

• Girdle of the womb
• Lower Limbs Upper Limbs
• Shoulder Girdle or Pectoral Muscle
• Humans have endoskeleton system, that is, our skeletal system comprises of both axial and appendicular system.

Functions of Skeletal System

The skeletal system’s key roles include movement, support, protection and the creation of blood cells, mineral storage, and endocrine regulation

A – Movement

In our skeletal system, bones provide a basic framework so that muscles could attach to each other. It is very necessary for our bodies to move. Tendons are stiff, inelastic bands that connect our muscles to certain bones.

B – Support

The skeletal system’s principal job is to create a strong framework to support and protect the human body and its organs. This aids in the preservation of the human body’s shape and form.

C – Protection and Creation of Blood Cells

By functioning as a buffer, the skeletal system also protects our internal organs and other sensitive bodily organs such as the brain, heart, lungs, and spinal cord. Our cranium (head) protects our brain and eyes, our ribs our heart and lungs, and our vertebrae (spine, backbones) our spinal cord.

D- Mineral Storage

The skeletal system’s bone matrix is primarily engaged in storing or keeping various types of critical minerals that are necessary to enable the growth and repair of the body’s cells and tissues. The cell-matrix serves as our calcium bank, accumulating and releasing calcium ions into blood cells as needed.

E- Endocrine Regulation

• The bone cells found in the skeletal system play a vital part in releasing hormones created by the individual endocrine glands for further use by the body in various metabolisms
• Aside from these functions, the skeletal system also helps to regulate blood sugar

Bones are very important for our human system. They provide support as well as give shape to our body. They support our body organs and are support our entire weight.

Skeletal System Diseases

• Osteoporosis: Osteoporosis is a bone-related illness that causes a decrease in bone density, increasing the risk of bone fracture
• Paget’s Disease is a chronic bone disease that causes the damaged bones to grow to be big and deformed
• Arthritis is an inflammation of the joints that causes difficulty and discomfort in mobility and limits it

Skeletal system examples

The human skeletal system’s bones vary in size and form and are irregularly distributed throughout the body. The Skeletal system gives shape, support, stability, and mobility to our body. The bone structure of our skeletal system protects our body’s internal organs and also support its weight. Whereas the skeletal part of the skeletal system has primary calcium and phosphorus storage deposit.

Some of the skeletal system examples are skull, chest, arm, spine, pelvis and many more.