The Role Of Bones In The Human Skeletal System

From the time of birth to adulthood, the amount of bones in the human body decreases as they are amalgamated together to construct larger and sturdier bones. Adults have two hundred and six bones in the body; On the other hand, babies are born with approximately three hundred bones. The axial skeleton consists of eighty bones, which are part of the skull, hyoid bone, vertebral column and thoracic cage. Additionally, the appendicular skeleton consists of one hundred and twenty six bones that are part of the pectoral girdle, pelvic girdle, upper and lower limbs. Bones are connected to joints, ligaments, tendons and cartilage, which makes up the human skeletal system. The skeletal system has three major functions, which include, support, protection, and movement. Although all adults contain the same amount of bones in the body, males and females have a slight difference. Females have a wider pelvic region than males to allow for growth of a baby in the uterus and having a passageway for a baby to be born. …show more content…
The four layers going from the outer to the innermost bone are periosteum, compact bone, spongy bone and bone marrow. The periosteum has dense connective tissues concealing the bone’s surface. Next, there is the compact bone, which is durable to protect the spongy bone and bone marrow. The spongy bone contains trabeculae, which bone marrow fills up the open spaces in between. The bone marrow’s function is to produce red and white blood cells along with platelets. Moreover, bones have five different shapes that vary in every part of the human skeleton, which are, long short, flat, irregular and