In this blog we are going to tell you about Write the Difference Between Pectoral and Pelvic Girdle, so read this blog carefully to get the complete information.
There are differences between the pectoral and pelvic girdle because of several factors including the type of bones that are contributing to the formation and association of bones and articulation. For instance, the collarbone and the shoulder blade are the two types of bone that contribute to shoulder muscle Pectoral girdle formation while hip bone solely contributes to the structure of the pelvic girdle. Moreover, in the human body, the left and right pectoral girdles are far apart from each other and function independently while the left and right pelvic girdles together unite to form a strong foundation for the upper and lower movement of the body. Let us understand more about what the Pectoral and Pelvic girdles are along with the other main differences between them.
What is a Pectoral Girdle?
Pectoral Girdle is defined as the connecting bone which combines the bones of the forelimbs to the axial skeleton. It includes two bones: a clavicle and a scapula. In the human body, the left and right Pectoral girdle function separately as they do not act as a unit and are not joined firmly. The axial skeleton organizes the working of both the pectoral girdle. In the Pectoral girdle, both our left side and right side shoulders contain the two bones that are clavicle and scapula. The clavicle is the collarbone which seems S-shaped and lies on the anterior side of the shoulder. It is the longest bone that lies horizontally and laterally supports the scapula. On the other hand, the scapula is also known as the shoulder blade or blade bone which lies on the posterior side of the shoulder.
What is Pelvic Girdle?
The pelvic girdle is defined as the bone that connects the hindlimbs to the axial skeleton. Unlike the pectoral girdle which comprises two bones, the pelvic girdle is composed of only one bone that is hip bone or coxal bone. Coxal bones act as an attachment point between both hindlimbs. In the pelvic girdle, both the left wing and right wing of the hip consist of hip bone which is infused with bony structures that are ilium, ischium, and pubis. Moreover, in contrast to the bones of the pectoral girdle which function independently, the coxal bones of the pelvic girdle unite firmly to form a weight-bearing and immobile structure.
Main Differences between Pectoral Girdle and Pelvic Girdle
The following are the main differences between the pectoral girdle and pelvic girdle as mentioned below:
- The pectoral girdle is also known as the shoulder girdle while the pelvic girdle is also known as the hip girdle.
- The pectoral girdle is the shoulder bone that articulates each bone of the forearms with the axial sternum of the skeleton whereas the Pelvic girdle is the hip bone that articulates each bone of the hind limbs with the axial skeleton.
- The pectoral girdle is formed by two bones that are clavicles and scapula while the structure of the Pelvic girdle is formed by coxal bones.
- In the Pectoral girdle, the left and right shoulder bones are not highly united whereas, in the Pelvic girdle, the left and right hip bones are highly united with the bones that are sacrum and coccyx and form a bowl-shaped structure which is called the pelvis.
- The bones of the pectoral girdle are lighter whereas the pelvic girdle possesses hard coxal bones.
- There are no sub-compartments in the pectoral girdle while in the pelvic girdle the coxal bones comprise three sub-compartments that are ilium, ischium, and pubis.
- The sternoclavicular joint is the part where the clavicle bone of the Pectoral girdle meets the manubrium of the sternum whereas the sacroiliac joint is the part where the ilium joins with the sacrum of the axial skeleton.
- The pectoral girdle helps in the articulation of the forelimb bones while the Pelvic girdle helps in the articulation of the hindlimb bones.
- The pectoral girdle supports and gives flexibility to the forelimbs so that we can perform tasks like holding and lifting things while the pelvic girdle supports the weight of the upper body and provides rigidity to the hindlimbs so that we can do activities like standing, running, jumping, and others.
The final verdict
So overall both the pectoral and pelvic girdle are the bones which connect the appendicular skeleton to the axial skeleton. However, the main difference between them is that the pectoral girdle is formed from the shoulder bones while the pelvic girdle is formed from the hip bones. This is the reason the pectoral girdle supports forelimb bones that are the humerus, ulna, radius, carpels, metacarpals, and phalanges while the pelvic girdle supports the hindlimb bones including the femur, fibula, tibula, patella, tarsals, metatarsals, and phalanges. We hope that you found this article helpful and understood the meaning and difference between the pectoral girdle and pelvic girdle.
RELATED – Why Does Salt Break and Melt Ice More Quickly Than Sugar? Let’s Understand
Conclusion
We Hope this blog is sufficient enough to provide the information about Write the Difference between Pectoral and Pelvic Girdle. Thanks for reading this blog.