The skeletal system is your body’s central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments. It’s also called the musculoskeletal system.

It is the body system composed of bones, cartilages, ligaments and other tissues that accomplish essential functions for the human body.

Bone is a specialized type of connective tissue.

The axial skeleton, comprising the spine, chest and head, contains 80 bones. The appendicular skeleton, comprising the arms and legs, including the shoulder and pelvic girdles, contains 126 bones, bringing the total for the entire skeleton to 206 bones.

There are 22 bones in the skull. Including the bones of the middle ear, the head contains 28 bones.
Cranial bones (8)
☞ Occipital bone
☞ Parietal bones (2)
☞ Frontal bone
☞ Temporal bones (2)
☞ Sphenoid bone (sometimes counted as facial)
☞ Ethmoid bone (sometimes counted as facial)

2. Facial bones (14)
☞ Nasal bones (2)
☞ Maxillae (upper jaw) (2)
☞ Lacrimal bone (2)
☞ Zygomatic bone (cheek bones) (2)
☞ Palatine bone (2)
☞ Inferior nasal concha (2)
☞ Vomer (1)
☞ Mandible (1)

3. Middle ears (6 bones in total, 3 on each side)
☞ Malleus (2)
☞ Incus (2)
☞ Stapes (2)

Spine (vertebral column):
A fully grown adult features 26 bones in the spine, whereas a child can have 34.
☞ Cervical vertebrae (7 bones)
☞ Thoracic vertebrae (12 bones)
☞ Lumbar vertebrae (5 bones)
☞ Sacrum (5 bones at birth, fused into one after adolescence)
☞ Coccygeal vertebrae/Cordal (1 bone)

Set of 4 bones at birth; some or all 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 26 bones in the chest but sometimes there can be additional cervical ribs in humans. Cervical ribs occur naturally in other animals such as reptiles.

☞ Hyoid bone (1)
☞ Sternum (1 or 3)
☞ Ribs (24, in 12 pairs)
Cervical ribs are extra ribs that occur in some humans.

Arm: There are a total of 64 bones in the arms.
Upper arm bones (6 bones in total; 3 on each side)
☞ Humerus (2)
Pectoral girdle (shoulder)
☞ Scapula (2)
☞ Clavicles (2)

Lower arm bones (4 bones in total, 2 on each side) left bone
☞ Ulna (2)
☞ Radius (2)

Hand (54 bones in total; 27 in each hand)
☞ Carpals (16 bones)
☞ Scaphoid bone (2)
☞ Lunate bone (2)
☞ Triquetral bone (2)
☞ Pisiform bone (2)
☞ Trapezium (2)
☞ Trapezoid bone (2)
☞ Capitate bone (2)
☞ Hamate bone (2)

Who we are and what we do.