Try the Quiz : Biology : Skeletal System & Bones of Human Body II

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• Occipital bone : Bone at the back and lower part of the cranium.
  - Occipital bone forms the base of the cranium.
  It is a curved, trapezoidal bone and encloses a large circular aperture called foramen magnum through which the brain extends as the spinal cord.
  
  
• Temporal bone : Bone on each side and at base of the cranium.
  - Temporal bone is located on each side and at base of the skull.
  It encloses 6 ear ossicles of the middle ear (3 on each side).
  
  
• Parietal bone : Bone on each side and at roof of the cranium.
  - Parietal bone is located on each side and at roof of the cranium.
  Parietal bone lies between the frontal and the occipital bone.
  Each bone is irregularly quadrilateral in shape.
  
  
• Frontal bone : Bone at the forehead.
  - Frontal bone forms the forehead of the skull.
  It also includes the upper part of the eye sockets.
  
  
• Ethmoid bone : Bone at the roof of the nose.
  - Ethmoid bone is located at the roof of the nose.
  It separates the nasal cavity from the brain.
  It is a very delicate bone and is easily injured.
  
  
• Maxilla : Bone in the upper jaw.
  - Maxilla is the upper jaw bone. It is somewhat pyramidal in shape and has a large cavity called the maxillary sinus.
  
  
• Mandible : Bone in the lower jaw.
  - Mandible forms the lower jaw.
  Mandible is the largest and the strongest facial bone.
  
  
• Stapes (Stirrup) : Bone at the outermost region of the middle ear.
  - Stapes is situated in the middle ear.
  It is the smallest bone of the human skeleton.
  It is only 0.25 to 0.33 cm long and weighs 2 to 4.3 mg.
  
  
• Hyoid bone : Bone in the neck region.
  - Hyoid bone is situated in the neck. It supports the root of the tongue.
  It is the only bone that does not articulate with any other bone.
  
  
• Clavicle : Bone in the collar region.
  - Clavicle is a slender rod-shaped bone located in the collar region.
  It is also called as the collar bone.
  
  
• Scapula : Bone at the posterior part of the shoulder girdle.
  - Scapula is a large, triangular and flat bone which forms the posterior part of the pectoral (shoulder) girdle.
  It is also known as the shoulder blade.
  
  
• Sternum (Breast bone) : Bone at the centre of the thorax.
  - Sternum is located at the centre of the thorax, i.e., the chest.
  It is a dagger-shaped bone that along with the ribs, forms the rib cage.
  
  
• Humerus : Bone in the upper arm.
  - Humerus is located in the upper arm.
  The head of the humerus fits into the glenoid cavity of the pectoral girdle to form a ball and socket joint.
  
  
• Radius : Bone at the lateral side of the forearm.
  - Radius is the bone located at the lateral side of the forearm.
  Radius along with Ulna constitutes the forearm.
  
  
• Ulna : Bone at the medial side of the forearm aligned with the little finger.
  - Ulna is located at the medial side of the forearm. It is aligned with the little finger.
  Ulna along with Radius constitutes the forearm.
  
  
• Carpals : Bones in the wrist region.
  - Carpals are located in the wrist region.
  There are 8 nodule-like bones called carpals in the wrist region.
  
  
• Metacarpals : Bones in the palm region.
  - Metacarpals are 5 small rod-shaped bones located in the palm region.
  
  
• Femur : Bone in the thigh region.
  - Femur is located in the thigh region.
  The head of the femur fits into the acetabulum of the pelvic girdle to form a ball and socket joint.
  It is the longest and the heaviest bone.
  It supports the weight of the body.
  
  
• Patella : Bone in front of the knee joint.
  - Patella is located in front of the knee joint.
  It is commonly known as the kneecap.
  It protects and covers the knee joint.
  
  
• Tibia : Bone in the shin region.
  - Tibia is located in the shin region of the leg.
  Tibia along with Fibula constitutes the lower leg.
  Tibia is the larger of the two bones.
  
  
• Fibula : Bone in the calf region.
  - Fibula is located in the calf region of the leg.
  Fibula along with Tibia constitutes the lower leg.
  
  
• Calcaneus : Bone at the heel.
  - Calcaneus is a large bone located at the heel.
  It is also known as the heel bone.
  It is more or less rectangular in shape.
  
  
• Tarsals : Bones in the ankle.
  - Tarsals are located in the ankle.
  There are 7 tarsal bones in the ankle. Calcaneus is the largest tarsal bone which constitutes the heel.
  
  
• Metatarsals : Bones in the foot.
  - Metatarsals are 5 long rod-shaped bones.
  They are located between the tarsals and the phalanges.
  Metacarpals of hand are analogous to metatarsals of foot.
  
  
• Phalanges : Bones in the fingers and toes.
  - Phalanges are the bones in the fingers and toes.
  There are 14 phalanges in the fingers of the hand. The thumb has 2 phalanges whereas other fingers have 3 phalanges each.
  There are 14 phalanges in the toes. The big toe has 2 phalanges whereas other toes have 3 phalanges each.
  
  

Try the Quiz : Biology : Skeletal System & Bones of Human Body II