Diagram of a human skeleton
The human skeleton is made of individual or joined bones human skelton (such as the skull), supported and supplemented by a structure of ligaments, humanskeleton tendons, muscles, cartilage and other organs.
The skeleton is not unchanging; it changes composition over a human skeletan lifespan. Early in gestation, a fetus has no hard skeleton; bones human skelaton form gradually during nine months in the womb. At birth, all human skelleton bones will have formed, but a newborn baby has more bones than an adult. human skeleten On average, an adult human has human skeloton 206 bones (according to Gray's Anatomy, but the number can vary slightly from individual to individual), but a baby human skelrton is born with approximately 270 bones. humn skeleton The difference comes from a number of human skeleyon small bones that fuse together during growth, such as the sacrum and coccyx of the vertebral column. humam skeleton An infant is born with pockets of cartilage between particular bones to human skeleton allow further growth. The sacrum (the bone at the base of the spine) consists of five bones which printable human skeleton are separated at birth but fuse together into a solid structure in the human skeleton later years. Growing is usually completed between ages 12 and 14, diagram human skeleton at which point the bones have human skeleton diagram no pockets of cartilage left to allow more growth.
Not all human skeleton pictures bones are interconnected directly. There are 6 bones, the auditory ossicles (three on each side), human skeleton worksheet in the middle ear that articulate only human skeletons with each other. Another bone, the hyoid bone in the neck, does not touch any other bones in the body, and is supported labeled diagram of a human skeleton by muscles and ligaments; it serves diagram of a human skeleton as the point of attachment for the tongue.
The longest and heaviest bone in the body is interactive human skeleton the femur and the smallest is the stapes bone bone names in a human skeleton in the middle ear. In an adult, the skeleton comprises around 20% of the total body weight.
- 1 Function
- 2 Organization
- 3 Gender atlas of a human skeleton differences
- 4 Diseases
- 5 See importation of human skeletons Also
- 6 External links
The most obvious function of bone names of bones in human skeleton is to support the body. It also the site of haematopoiesis, the manufacture picture of human skeleton of blood cells, that takes place in bone marrow (which is why bone marrow cancer is show me the human skeleton very often a terminal disease). It is also necessary for protection of vital organs. detailed diagram of the human skeleton Movement in vertebrates is dependent on the skeletal muscles, which are attached to diagram of human skeleton the skeleton by tendons. Without the skeleton ear of the human skeleton to give leverage, movement would be greatly restricted. Bone also serves as human skeleton drawing a mineral storage deposit in which nutrients can be stored and retrieved.
The human skeleton can be divided into the bones of a human skeleton labeled axial skeleton and the appendicular skeleton.
The axial skeleton has five areas and consists of 80 bones in a typical human body skeleton adult:
- Skull (22)
- Ossicles. Bones of the middle ear. human skeleton models (6)
- Hyoid bone. Bone in the throat. (1)
- Vertebral column (26)
- Chest (25)
The appendicular skeleton has six areas aging bones in a human skeleton and consists of 126 bones in a typical adult:
- Shoulder girdle (4)
- Arms (6)
- Hands (54)
- Pelvic girdle blood production in human skeleton (2)
- Legs (8)
- Feet (52)
A prepared human body skeleton system human human skeleton anatomy skeleton, as used in biology education
There are many differences between the male and female human skeletons. Men tend to have human skeleton leg slightly thicker and longer limbs and digit bones, while women tend to have human skeleton picture narrower rib cages, smaller teeth, less angular mandibles, and less pronounced cranial features weight of human skeleton such how many bones in a human skeleton as the brow ridges and occipital protuberance (the small bump at the back of the skull). Most striking is the difference in hip human skeleton .max .3ds bones, owing to differences related labeled human skeleton to the process of reproduction, and very likely also labelled diagram of human skeleton to the biological process of sexual selection. There are a number of smaller differences between human male and female skeletons as 11' human skeleton well.
The book Genesis of the Bible tells that Eve was created from 3d human skeleton one of Adam's ribs. This has led some people to assume that men bones and human skeleton have one fewer rib bones of the human skeleton than women, but upon inspection this is false: men and women both have 12 pairs of ribs. In doctor of the study of human skeleton addition, removed ribs usually regenerate within 2-3 months of sectional entire human skeleton surgery, as in the surgical procedure rib thoracoplasty.
The skeleton can be femer human skeleton affected by many diseases that compromise physical mobility human axial skeleton and strength. Skeletal diseases range from minor to extremely human organs and skeleton debilitating. Bone cancer and bone tumors are extremely serious and human skeleton and nutrition lesson plan are sometimes treated by radical surgery such as amputation of the affected limb. Various forms of arthritis attack the skeleton, in particular the human skeleton front & back joints, resulting in severe pain and debility.
A fracture occurs when a bone is human skeleton game subjected to too much stress. Fractures are divided into "simple" and "compound" human skeleton joints fractures, the meaning of which is not immediately apparent. A human skeleton labeling "simple" fracture means only that the damaged bone human skeleton replica has not broken through the skin, and does not imply a single human skeleton side veiw break. Likewise, a broken bone is called a "compound fracture" when human skeleton tutorial it has broken through the skin, again not implying that the bone has broken in more than human verses animal skeleton identification one place. Osteoporosis can increase the likelihood label me printouts of the human skeleton of fractures and broken bones, especially among post-menopausal women and the elderly.
- List of bones of the labeled detailed diagram of a human skeleton human skeleton
- A skeleton page old human skeleton for kids
|VERTEBRAL COLUMN: vertebrae (cervical - atlas - the anatomy of the human skeleton axis | thoracic | lumbar) | sacrum | coccyx
THORAX: sternum | anatomy of the human skeleton rib
cranial bones of SKULL: occipital | parietal articles on human skeleton | frontal | temporal | sphenoid | ethmoid
facial bones of SKULL nasal | maxilla | lacrimal | zygomatic charts of the human skeleton | palatine | inferior discount human skeleton models nasal conchae | vomer | mandible | hyoid
UPPER EXTREMITY: clavicle | scapula | humerus | ulna drawings of human skeleton side views of a reclined figure | radius
carpals (scaphoid | lunate bone | triquetral | pisiform | trapezium | trapezoid ear human skeleton | capitate | hamate) free interactive human skeleton | metacarpals | phalanges (prox | int | dist)
LOWER EXTREMITY: pelvis (ilium, ischium, pubis) | femur | how to determine the gender and age of a human skeleton patella | fibula | tibia
tarsals (calcaneus | human anatomy skeleton talus | navicular | cuneiform | cuboid ) | metatarsals | phalanges (prox | int | dist)
OSSICLES: malleus | incus | stapes
Categories: Human anatomy | Skeletal system