Welcome to our Human Skeleton, How your body works
A typical adult human skeleton consists of 206 bones. Anatomical variation may also result in the formation of more or fewer bones. More common variations include cervical ribs or an additional lumbar vertebra.
Cranial bones (8):
frontal bone
temporal bone (2)
occipital bone
sphenoid bone
ethmoid bone
Facial bones (14):
mandible
maxilla (2)
palatine bone (2)
zygomatic bone (2)
nasal bone (2)
lacrimal bone (2)
vomer
inferior nasal conchae (2)
In the middle ears (6):
malleus (2)
incus (2)
stapes (2)
In the throat (1):
hyoid bone
In the shoulder girdle (4):
scapula or shoulder blade (2)
clavicle or collarbone (2)
In the thorax (25):
sternum (1)
Can be considered as three bones; manubrium, body of sternum (gladiolus), and xiphoid process
ribs (2 x 12)
the largest bone is the femur. In primitive tetrapods, the main points of muscle attachment along the femur are the internal trochanter and fourth trochanter, and a n ridge along the ventral surface of the femoral shaft referred to as the adductor crest. The neck of the femur is generally minimal or absent in the most primitive forms, reflecting a simple attachment to the acetabulum. The greater trochanter was present in the extinct archosaurs, as well as in modern birds and mammals, being associated with the loss of the primitive sprawling gait. The lesser trochanter is a unique development of mammals, which lack both the internal and fourth trochanters. The adductor crest is also often absent in mammals or alternatively reduced to a series of creases along the surface of the bone
parietal bone (2)
A joint is the point at which two bones are connected. Many joints provide support and stability and allow movement, although some, such as those of the pelvis, are not movable. Joints contain bones, cartilage and a lining called synovium The entire frame of our body is made of bones and is called the skeleton. It is the name given to the framework of bones that holds up the rest of our body. All the bones of our body are connected to each other. The places where the bones meet are called joints. The end of each bone is covered by a tough, smooth shiny substance called cartilage. The ends of each bone are further separated by a thin film of slippery fluid that works like oil in a car. It prevents the,bones from bumping against each other when you move. Our bones are held together by strong elastic-like bands called ligaments. Our skeleton is very important to us. It has three main functions: 1. It protects the important organs inside our body such as the brain, the heart and the lungs. The bony part of the head is called skull. The bones around our chest form a rib cage. 2. The skeleton supports our body and gives it shape. It is like a container for all the internal organs and tissues of the body. Can you imagine what would happen to your body if you had no bones? The skeleton allows us to move. Our muscles are attached to our bones. When our muscles move, they move the bones, and thus we move. There would be little or movement possible without the help of the skeletal system. When human beings are born, their skeleton has around 350 bones. By the time they become adults, they have around 206 bones. This is because, as we grow, some of the bones fuse together to form one bone.
A typical adult human skeleton consists of 206 bones. Anatomical variation may also result in the formation of more or fewer bones. More common variations include cervical ribs or an additional lumbar vertebra.
Cranial bones (8):
frontal bone
temporal bone (2)
occipital bone
sphenoid bone
ethmoid bone
Facial bones (14):
mandible
maxilla (2)
palatine bone (2)
zygomatic bone (2)
nasal bone (2)
lacrimal bone (2)
vomer
inferior nasal conchae (2)
In the middle ears (6):
malleus (2)
incus (2)
stapes (2)
In the throat (1):
hyoid bone
In the shoulder girdle (4):
scapula or shoulder blade (2)
clavicle or collarbone (2)
In the thorax (25):
sternum (1)
Can be considered as three bones; manubrium, body of sternum (gladiolus), and xiphoid process
ribs (2 x 12)
the largest bone is the femur. In primitive tetrapods, the main points of muscle attachment along the femur are the internal trochanter and fourth trochanter, and a n ridge along the ventral surface of the femoral shaft referred to as the adductor crest. The neck of the femur is generally minimal or absent in the most primitive forms, reflecting a simple attachment to the acetabulum. The greater trochanter was present in the extinct archosaurs, as well as in modern birds and mammals, being associated with the loss of the primitive sprawling gait. The lesser trochanter is a unique development of mammals, which lack both the internal and fourth trochanters. The adductor crest is also often absent in mammals or alternatively reduced to a series of creases along the surface of the bone
parietal bone (2)
A joint is the point at which two bones are connected. Many joints provide support and stability and allow movement, although some, such as those of the pelvis, are not movable. Joints contain bones, cartilage and a lining called synovium
The entire frame of our body is made of bones and is called the skeleton. It is the name given to the framework of bones that holds up the rest of our body. All the bones of our body are connected to each other. The places where the bones meet are called joints.
The end of each bone is covered by a tough, smooth shiny substance called cartilage. The ends of each bone are further separated by a thin film of slippery fluid that works like oil in a car. It prevents the,bones from bumping against each other when you move. Our bones are held together by strong elastic-like bands called ligaments.
Our skeleton is very important to us. It has three main functions:
1. It protects the important organs inside our body such as the brain, the heart and the lungs. The bony part of the head is called skull. The bones around our chest form a rib cage.
2. The skeleton supports our body and gives it shape. It is like a container for all the internal organs and tissues of the body. Can you imagine what would happen to your body if you had no bones?
The skeleton allows us to move. Our muscles are attached to our bones. When our muscles move, they move the bones, and thus we move. There would be little or movement possible without the help of the skeletal system.
When human beings are born, their skeleton has around 350 bones. By the time they become adults, they have around 206 bones. This is because, as we grow, some of the bones fuse together to form one bone.