Interesting Facts Skeletal System | Facts for skeletal system
Skeletal system is the system of bones, associated cartilages and joints of human body. Together these structures form the human skeleton. Skeleton can be defined as the hard framework of human body around which the entire body is built. Almost all the hard parts of human body are components of human skeletal system. Joints are very important because they make the hard and rigid skeleton allow different types of movements at different locations. If the skeleton were without joints, no movement would have taken place and the significance of human body; no more than a stone.
Interesting Facts Skeletal System | Facts for skeletal system
Components Of Human Skeleton
Human skeleton is composed of three main components; Bones, Associated cartilages and Joints.
#Bones:
Bone is a tough and rigid form of connective tissue. It is the weight bearing organ of human body and it is responsible for almost all strength of human skeleton.
#Cartilages:
Cartilage is also a form of connective tissue but is not as tough and rigid as bone. The main difference in the cartilage and bone is the mineralization factor. Bones are highly mineralized with calcium salts while cartilages are not.
Divisions of Human Skeleton:
Human skeleton can be divided into two divisions.
- Axial Skeleton:
Axial skeleton
Axial skeleton forms the axis of human body. It consists of Skull, vertebral column and thoracic cage
#Joints:
Joints are important components of human skeleton because they make the human skeleton mobile. A joint occurs between “two or more bones”, “bone and cartilage” and “cartilage and cartilage”.
Skull: Skull is that part of human skeleton that forms the bony framework of the head. It consists of 22 different bones that are divided into two groups: bones of cranium and bones of face
Vertebral Column: It is a flexible column of vertebrae, connecting the trunk of human body to the skull and appendages. It is composed of 33 vertebrae which are divided into 5 regions: Cervical, Thoracic, Lumbar, Sacral, and Coccygeal.
Rib Cage: It is a bony cage enclosing vital human organs formed by the sternum and ribs. There are 12 pairs of ribs that are divided into three groups: True ribs, False ribs, and Floating ribs.
- Appendicular Skeleton
Appendicular skeleton
Shoulder Girdle: It attaches the upper limb to body trunk and is formed by two bones: clavicle and scapula.Clavicle is a modified long bone and is subcutaneous throughout its position. It is also known as the beauty bone. Scapula is a pear shaped flat bone that contains the glenoid fossa for the formation of shoulder joint. It possesses three important processes: Spine of scapula, Acromion process and Coracoid process.
Skeleton of Upper limb: The skeleton of each upper limb consists of 30 bones. These bones are: Humerus, Ulna, Radius, Carpals (8), Metacarpals (5), Phalanges (14).
Pelvic Girdle: There are two pelvic girdles (one for each lower limb) but unlike the pectoral girdles, they are jointed with each other at symphysis pubis. Each pelvic girdle is a single bone in adults and is made up of three components: Ileum, Ischium and Pubis.
Skeleton of Lower limb: The skeleton of each lower limb consists of 30 bones. These bones are; Femur, Tibia, Patella, Tarsals (7), Metatarsals (5), Phalanges (14).
Human skeleton performs some important functions that are necessary for survival of human beings.
1. Strength, Support And Shape: It gives strength, support and shape to the body. Without a hard and rigid skeletal system, human body cannot stand upright, and it will become just a bag of soft tissues without any proper shape
2. Protection Of Delicate Organs: In areas like the rib cage and skull, the skeleton protects inner soft but vital organs like heart and brain from external shocks. Any damage to these organs can prove fatal, therefore protective function of skeleton is very important
3. Leverage For Movements: Bones of the human skeleton in all parts of body provide attachment to the muscles. These muscles provide motor power for producing movements of body parts. In these movements the parts of skeleton acts like levers of different types thus producing movements according to the needs of the human body.
4. Production Of Red Blood Cells: Bones like the sternum, and heads of tibia have hemopoeitic activity (blood cells production). These are the sites of production of new blood cells.
Interesting Facts
· In the Paleolithic period, early man engraved human bones after eating their owners. "Engraving is usually considered part of a modern behavior kit, a new way of expression typical of our species," said study lead author Silvia Bello, a paleoanthropologist at the Natural History Museum in London.
· Hippocrates, the ancient Greek father of medicine, develops splints for fractures of the tibia.
· During the Roman era, Galen (199-129 B.C.) describes the skeletal system and the surrounding muscles. Medical experts of the time also develop the first artificial prostheses.
· Ambroise Pare (1510-1590), the father of French surgery, develops techniques for amputations and artificial limbs.
· Antonius Mathysen (1805-1878), a Dutch military surgeon, in 1851 invents the plaster of Paris (POP) bandage. A POP cast remains the primary method of fracture immobilization today.
· In 1895, Wilhelm Conrad Roentgen accidentally discovers an image cast from his cathode ray generator, projected far beyond the possible range of the cathode rays. He wins the Nobel Prize for Physics in 1901 for his discovery of X-rays.
· Sir Reginald Watson-Jones (1902-1972) publishes "Fractures and Joint Injuries" in 1940, which remains a standard reference for several decades.
· In 1949, H. Lowry Rush (1879-1965) uses stainless steel pins to treat long bone fractures.
· Marijuana is found to possibly heal bone fractures, according to research by the Tel Aviv University's Sackler Faculty of Medicine in 2015.
People also ask
What is the description of skeletal system?
The skeletal system is your body's central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments. It's also called the musculoskeletal system
What is unique about the human skeleton?
Our skulls are composed of various elements fused together into a single unit, while our spines are a swerving stack of individual vertebrae separated by discs of squishy cartilage, with our ribs attaching to their own vertebrae.
What do you know about the skeleton?
The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.
What is the strongest bone in the body?
The femur is one of the most well-described bones of the human skeleton in fields ranging from clinical anatomy to forensic medicine. Because it is the longest and strongest bone in the human body, and thus, one of the most well-preserved in skeletal remains, it makes the greatest contribution to archaeology.
What is the softest bone?
clavicle
The weakest and softest bone in the human is the clavicle or collar bone. Because it is a tiny bone which runs horizontally across your breastbone & collarbone, it is simple to shatter.
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