Distinguish between pectoral and Pelvic girdle.

The pectoral girdle and the pelvic girdle are both bony structures of the human body that play essential roles in providing support and facilitating movement, but they are located in different regions and serve distinct functions. Here's a comparison between the two:

Location:

Pectoral Girdle: The pectoral girdle, also known as the shoulder girdle, is located in the upper part of the body. It consists of two bones on each side: the clavicle (collarbone) and the scapula (shoulder blade).
Pelvic Girdle: The pelvic girdle is located in the lower part of the body. It consists of two hip bones, also known as coxal bones or innominate bones, which fuse together to form the pelvic structure.
Attachment of Limbs:

Pectoral Girdle: The pectoral girdle serves as the attachment point for the upper limbs (arms). The clavicle attaches the shoulder to the axial skeleton (sternum), while the scapula provides a point of attachment for muscles and ligaments that move the arm.
Pelvic Girdle: The pelvic girdle serves as the attachment point for the lower limbs (legs). It forms the connection between the axial skeleton (sacrum) and the lower extremities (thigh bones).
Mobility and Stability:

Pectoral Girdle: The pectoral girdle is relatively more mobile than stable. This mobility allows for a wide range of motion of the arms and shoulders, facilitating activities such as reaching, lifting, and throwing.
Pelvic Girdle: The pelvic girdle is more stable than mobile. Its primary function is to support the weight of the body and provide a stable foundation for the lower limbs during activities such as walking, running, and standing.
Shape and Structure:

Pectoral Girdle: The pectoral girdle is smaller and more triangular in shape. It consists of the clavicle and the scapula, which are relatively thin and lightweight bones.
Pelvic Girdle: The pelvic girdle is larger and more robust in comparison. It consists of two coxal bones that are fused together at the front by the pubic symphysis and at the back by the sacrum, forming a strong and sturdy structure to support the body's weight.
In summary, while both the pectoral and pelvic girdles are bony structures that facilitate movement and provide support, they differ in terms of location, function, mobility, and structure, with the pectoral girdle supporting the upper limbs and being more mobile, while the pelvic girdle supports the lower limbs and is more stable.