Determine the division of the skeleton to which each bone belongs. Patella Ribs Phalanges Cranium Clavicle Vertebrae Sternum llium Radius Appendicular skeleton Axial skeleton None
The Correct Answer and Explanation is :
It seems I’m unable to view the image you shared, but I can still explain the division of the skeleton based on common anatomical knowledge.
The human skeleton is divided into two main parts:
- Axial Skeleton: This includes bones that form the central axis of the body. It consists of:
- Cranium (skull): Protects the brain.
- Vertebrae (spine): Protects the spinal cord and provides support for the body.
- Ribs: Protect the heart and lungs.
- Sternum (breastbone): Located in the chest, it supports the ribs and serves as an attachment point for muscles.
- Appendicular Skeleton: This includes the bones of the limbs and the girdles (shoulder and pelvic girdles) that attach the limbs to the axial skeleton. It consists of:
- Clavicle (collarbone): Connects the arm to the body.
- Ilium (part of the pelvis): Part of the pelvic girdle that supports the weight of the body when sitting and standing.
- Radius: A bone of the forearm, located on the thumb side.
- Phalanges (fingers and toes): These are the bones in the fingers and toes.
- Patella (kneecap): A small, flat bone that protects the knee joint.
Explanation:
- Axial Skeleton: The axial skeleton serves as the main structural support for the body. It consists of bones that are located along the midline of the body, such as the cranium, vertebrae, ribs, and sternum. These bones help protect vital organs like the brain, heart, and lungs, and provide support for the body’s weight.
- Appendicular Skeleton: The appendicular skeleton is responsible for movement and manipulation. It includes the bones of the limbs (arms and legs) and the girdles (shoulder and pelvic) that connect the limbs to the trunk of the body. This division is crucial for locomotion and performing everyday tasks, like lifting and walking.
Each of the bones you mentioned can be classified as follows:
- Patella: Appendicular skeleton
- Ribs: Axial skeleton
- Phalanges: Appendicular skeleton
- Cranium: Axial skeleton
- Clavicle: Appendicular skeleton
- Vertebrae: Axial skeleton
- Sternum: Axial skeleton
- Ilium: Appendicular skeleton
The Axial skeleton includes the bones that are central to the body’s structure and protect vital organs, while the Appendicular skeleton supports movement and consists of the limbs and their connections to the body.