List of bones of the human skeleton - wikipedia List of bones of the human skeleton Part of a series of lists about Human anatomy General features regions Variations Movements Systems Structures Arteries Bones Eponymous Foramina Glands endocrine Lymphatic vessels Nerves Organs Systems Veins Muscles Abductors Adductors Depressors Elevators Extensors Flexors External rotators Internal rotators See also Epithelia Anatomical terminology Index of anatomy articles Outline of anatomy Cell types The skeleton of an adult human consists of 206 bones. It is composed of 301 bones at birth, which decreases to 94 bones in the axial skeleton ( 28 in the skull and 52 in the torso ) and 126 bones in the appendicular skeleton ( 32 × 2 in the upper extremities including both arms and 31 × 2 in the lower extremities including both legs ). Many small and variable supernumerary bones, such as some sesamoid bones, are not included in this count. Contents 1 Introduction 2 Bones 2.1 Spine ( vertebral column ) 2.2 Chest ( thorax ) 2.3 Skull ( cranium and mandible ) 2.4 Arm 2.5 Pelvis ( pelvic girdle ) 2.6 Leg 2.7 Sesamoid bones 3 References Introduction The bones in a human skeleton will be more as the age will be more, as multiple bones fuse, a process which typically reaches completion in the third decade of life. In addition, the bones of the skull and face are counted as separate bones, despite being fused naturally. Some reliable sesamoid bones such as the pisiform are counted, while others, such as the hallux sesamoids, are not. Individuals may have more or fewer bones than this owing to anatomical variations. The most common variations include sutural ( wormian ) bones, which are located along the sutural lines on the back of the skull, and sesamoid bones which develop within some tendons, mainly in the hands and feet. Some individuals may also have additional ( i.e. supernumerary ) cervical ribs or lumbar vertebrae. Bones Spine ( vertebral column ) A fully grown adult features 30 bones in the spine, whereas a child can have 33. The cervical vertebrae ( 7 ) The thoracic vertebrae ( 12 ) The lumbar vertebrae ( 5 ) The sacral vertebrae ( 5 at birth, later fused into one ) The coccygeal vertebrae ( 5 at birth, some or all of the bones fuse together but there seems to be a disagreement between researchers as to what the most common number should be. Some say the most common is 1, others say 2 or 3, with 4 being the least likely. It is counted as 1 in this article. ) Chest ( thorax ) There are usually 25 bones in the chest but sometimes there can be additional cervical ribs in humans. Cervical ribs occur naturally in other animals such as reptiles. The sternum ( 1 ) The ribs ( 24, in 12 pairs ) It is important to note that three pairs ( the 8th, 9th and 10th ), also known as false ribs, are attached to each other. They are also attached to the 7th rib by cartilage and synovial joints. Also two pairs of floating ribs ( the 11th and 12th ), have no anterior attachment. Cervical ribs are extra ribs that occur in some humans. Skull ( cranium and mandible ) There are 22 bones in the skull. Including the hyoid and the bones of the middle ear, the head contains 29 bones. The cranial bones ( 8 ) The occipital bone The parietal bones ( 2 ) The frontal bone The temporal bones ( 2 ) The sphenoid bone ( sometimes counted as facial ) The ethmoid bone ( sometimes counted as facial ) The facial bones ( 14 ) The nasal bones ( 2 ) The maxillae ( upper jaw ) ( 2 ) The lacrimal bone ( 2 ) The zygomatic bone or cheekbone ( 2 ) ; The palatine bone ( 2 ) The inferior nasal concha ( 2 ) The vomer The mandible ( lower jaw ) The hyoid bone ( not connected to any other bone ) In the middle ears ( 6 ) malleus ( 2 ) incus ( 2 ) stapes ( 2 ) Arm There are a total of 64 bones in the arm. The upper arm bones ( 6 bones, 3 on each side ) The humerus The shoulder ( pectoral girdle ) The scapula The clavicles The lower arm bones ( 4 bones, 2 on each side ) The ulna The radius The hand ( 54 bones, 27 in each hand ) The carpals scaphoid bone ( 2 ) lunate bone ( 2 ) triquetral bone ( 2 ) pisiform bone ( 2 ) trapezium ( 2 ) trapezoid bone ( 2 ) capitate bone ( 2 ) hamate bone ( 2 ) The metacarpals ( 5 × 2 = 10 ) The phalanges of the hand proximal phalanges ( 5 × 2 = 10 ) intermediate phalanges ( 4 × 2 = 8 ) distal phalanges ( 5 × 2 = 10 ) Pelvis ( pelvic girdle ) The hip bone has three regions : ilium, ischium, and pubis ( 2 ) The sacrum and the coccyx attach to the two hip bones to form the pelvis, but are more important to the spinal column. For this reason it is omitted from the pelvic girdle. Leg The femur ( 2 ) The patella or kneecap ( 2 ) The tibia ( 2 ) The fibula ( 2 ) The foot ( 52 bones in total, 26 per foot ) The tarsus calcaneus or heel bone ( 2 ) talus ( 2 ) navicular bone ( 2 ) medial cuneiform bone ( 2 ) intermediate cuneiform bone ( 2 ) lateral cuneiform bone ( 2 ) cuboid bone ( 2 ) The metatarsals ( 10 ) The phalanges of the foot proximal phalanges ( 5 × 2 = 10 ) intermediate phalanges ( 4 x 2 = 8 ) distal phalanges ( 5 x 2 = 10 ) Sesamoid bones Patella Pisiform bone Fabella Sesamoids in the first and second metacarpal bones Sesamoids in the first metatarsal bone Lenticular process of the incus For inconsistent bones, see Accessory bone. References The 206 Bones of the Human Body Bones in the human skeleton Axial skeleton Skull Neurocranium occipital parietal frontal temporal sphenoid ethmoid Face nasal maxilla lacrimal zygomatic palatine inferior nasal conchae vomer mandible hyoid Ear ossicles malleus incus stapes Thorax sternum rib cage rib Vertebral column vertebrae cervical thoracic lumbar sacrum coccyx Appendicular Shoulder clavicle scapula Arm humerus ulna radius Hand carpals ( scaphoid, lunate bone, triquetral, pisiform, trapezium, trapezoid, capitate, hamate ) metacarpals phalanges ( prox, int, dist ) Pelvis ilium ischium pubis Leg femur patella fibula tibia Foot tarsals heelbone anklebone navicular cuneiform cuboid metatarsals phalanges proximal intermediate distal accessory accessory navicular Retrieved from `` https://en.wikipedia.org/w/index.php?title=List_of_bones_of_the_human_skeleton&oldid=818782589 '' Categories : Skeletal system Lists of human anatomical features Hidden categories : All articles with unsourced statements Articles with unsourced statements from February 2017 Talk Contents About Wikipedia বাংলা Башҡортса Български Brezhoneg Català Čeština Cymraeg Deutsch Español Euskara Français Frysk Galego 한국어 Hrvatski Bahasa Indonesia Íslenska Italiano Basa Jawa Latina Latviešu Lietuvių Magyar Nederlands 日本 語 Norsk nynorsk Português Română Русский Simple English Suomi Svenska தமிழ் ไทย 中文 Edit links This page was last edited on 5 January 2018, at 15 : 21. 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Question: where are more than half your bones located
Answer: the appendicular skeleton