The Skeletal System
The human skeletal system consists of 206 bones, as well as tendons, ligaments and cartilage that connects them. The skeletal system performs functions support, movement, protection, blood cell production, calcium, and endocrine regulation. That enable us to move through our daily lives. Infants are born with 300 to 350 bones, some of which fuse together as the body develops. By the time most children reach the age of 9 they have 206 bones. The skeletons of males and females primarily to accommodate childbirth. A male's pelvis is about 90 degrees or less of angle, whereas a female's is 100 degrees or more.The female pelvis is flatter, more rounded and proportionally larger. they become brittle when outside of the body, bones are alive inside the body, being fed by blood vessels from the circulatory system and nerves from the nervous system.
Teeth are considered part of the skeletal system but they are not counted as bones. Teeth are made of dentin and enamel, which is strongest substance in your body. Teeth also play a key role in the digestive system.
A typical bone has a dense and tough outer layer. Next is a layer of a sponge like substance, which is lighter and more flexible. In the middle is jelly-like bone marrow, where new cells are constantly being produced for blood. Teeth are considered part of the skeletal system but they are not counted as bones. Teeth are made of dentin and enamel, which is strongest substance in your body. Teeth also play a key role in the digestive system.
The skeletal system has two distinctive parts: the axial skeleton and the appendicular skeleton.
The axial skeleton, has a total of 80 bones, consists of the vertebral column, the rib cage and the skull. The axial skeleton transmits the weight from the head, the trunk and the upper extremities down to the lower extremities at the hip joints, which help maintain our upright posture.
The appendicular skeleton has a total of 126 bones, and is formed by pectoral girdles, the upper limbs, the pelvic girdle and the lower limbs. Their functions are to help make walking, running and other movement possible and to protect the major organs responsible for digestion, excretion and reproduction.
Diseases of the skeletal system
X-rays, MRIs, bone density tests and arthroscopy are some of the primary diagnostic tools used to detect diseases of the skeletal system. Bone scans are used to diagnose cancer.
Osteoporosis is a prevalent disease of the skeletal system, particularly among the elderly, resulting in loss of bone tissue. In osteoporosis,the bone loses calcium, becomes thinner, and may disappear completely.
Also common is scoliosis, a side-to-side curve in the back or spine, often creating a "C" or "S" shape when viewed on an x-ray of the spine. This condition is typically becomes evident during adolescence
3 interesting facts
The largest bone is the pelvis, or hip bone. In fact it is made of six bones joined firmly
together.
The longest bone is the 'femur', in the thigh. It makes up almost one quarter of the body's total
height.
After death, cartilage rots faster than bone. This is why the skulls of skeletons have no nose or
ears.
The human skeletal system consists of 206 bones, as well as tendons, ligaments and cartilage that connects them. The skeletal system performs functions support, movement, protection, blood cell production, calcium, and endocrine regulation. That enable us to move through our daily lives. Infants are born with 300 to 350 bones, some of which fuse together as the body develops. By the time most children reach the age of 9 they have 206 bones. The skeletons of males and females primarily to accommodate childbirth. A male's pelvis is about 90 degrees or less of angle, whereas a female's is 100 degrees or more.The female pelvis is flatter, more rounded and proportionally larger. they become brittle when outside of the body, bones are alive inside the body, being fed by blood vessels from the circulatory system and nerves from the nervous system.
Teeth are considered part of the skeletal system but they are not counted as bones. Teeth are made of dentin and enamel, which is strongest substance in your body. Teeth also play a key role in the digestive system.
A typical bone has a dense and tough outer layer. Next is a layer of a sponge like substance, which is lighter and more flexible. In the middle is jelly-like bone marrow, where new cells are constantly being produced for blood. Teeth are considered part of the skeletal system but they are not counted as bones. Teeth are made of dentin and enamel, which is strongest substance in your body. Teeth also play a key role in the digestive system.
The skeletal system has two distinctive parts: the axial skeleton and the appendicular skeleton.
The axial skeleton, has a total of 80 bones, consists of the vertebral column, the rib cage and the skull. The axial skeleton transmits the weight from the head, the trunk and the upper extremities down to the lower extremities at the hip joints, which help maintain our upright posture.
The appendicular skeleton has a total of 126 bones, and is formed by pectoral girdles, the upper limbs, the pelvic girdle and the lower limbs. Their functions are to help make walking, running and other movement possible and to protect the major organs responsible for digestion, excretion and reproduction.
Diseases of the skeletal system
X-rays, MRIs, bone density tests and arthroscopy are some of the primary diagnostic tools used to detect diseases of the skeletal system. Bone scans are used to diagnose cancer.
Osteoporosis is a prevalent disease of the skeletal system, particularly among the elderly, resulting in loss of bone tissue. In osteoporosis,the bone loses calcium, becomes thinner, and may disappear completely.
Also common is scoliosis, a side-to-side curve in the back or spine, often creating a "C" or "S" shape when viewed on an x-ray of the spine. This condition is typically becomes evident during adolescence
3 interesting facts
The largest bone is the pelvis, or hip bone. In fact it is made of six bones joined firmly
together.
The longest bone is the 'femur', in the thigh. It makes up almost one quarter of the body's total
height.
After death, cartilage rots faster than bone. This is why the skulls of skeletons have no nose or
ears.