When human is baby it has 300 bones.
but young human have 206 bones.

The Human Skeletal System

The human body is composed of various systems that work together to ensure its proper functioning. One of the most important systems is the skeletal system, which provides support, protection, and movement to the body. The skeletal system is made up of bones, which are hard, rigid structures that form the framework of the body.

Number of Bones in the Human Body

The human body has a total of 206 bones. These bones are divided into two main categories: axial and appendicular skeletons.

1. Axial Skeleton
The axial skeleton consists of the bones that form the central axis of the body. It includes the skull, vertebral column, and ribcage. The axial skeleton is responsible for protecting vital organs such as the brain, spinal cord, and heart.

Key Points:
- The skull consists of 22 bones, including the cranium and facial bones.
- The vertebral column, also known as the spine, is made up of 26 bones called vertebrae.
- The ribcage comprises 12 pairs of ribs, attached to the thoracic vertebrae at the back and the sternum at the front.

2. Appendicular Skeleton
The appendicular skeleton consists of the bones that make up the limbs and their associated girdles. It includes the bones of the upper and lower limbs, as well as the pectoral and pelvic girdles. The appendicular skeleton is responsible for the movement and locomotion of the body.

Key Points:
- The upper limbs consist of the humerus, radius, ulna, carpals, metacarpals, and phalanges. Each upper limb has a total of 32 bones.
- The lower limbs consist of the femur, tibia, fibula, tarsals, metatarsals, and phalanges. Each lower limb has a total of 31 bones.
- The pectoral girdle consists of the clavicle and scapula, which connect the upper limbs to the axial skeleton.
- The pelvic girdle consists of the hip bones, sacrum, and coccyx, which connect the lower limbs to the axial skeleton.

Conclusion
In summary, the human body has 206 bones, which are divided into the axial and appendicular skeletons. The axial skeleton includes the skull, vertebral column, and ribcage, while the appendicular skeleton includes the bones of the upper and lower limbs, as well as the pectoral and pelvic girdles. These bones provide support, protection, and enable movement, allowing the body to carry out various functions.