Question

Which of these is a part of the appendicular skeleton?
A)Ribs
B)Cranium
C)Clavicle
D)Vertebrae

Answer 1

The internal framework of the body that supports the muscles and other organs of the body is referred to be as the skeleton system. The skeleton is composed of bones. The human skeleton is composed of axial skeleton and the appendicular skeleton. The axial skeleton is connected to the appendicular skeleton to give rise to the complete skeleton system.

Complete answer:
The axial skeleton is made by the vertebral column, the rib cage, skull and many other associated bones. The remaining part of the skeleton is the appendicular skeleton. The appendicular skeleton plays a major role to support the attachments or appendages of the axial skeleton. It is composed of the pectoral girdles, pelvic girdles, upper and lower limbs.
The pectoral girdles are also termed as the shoulder girdle and it gives the point of attachments of the upper limbs with the axial skeleton. It is made up of the clavicle and the scapula bones.

Now let us find solution from given options:
Ribs : They help to provide structural framework to the body. They are part of the axial skeleton.
Cranium : This structure covers the brain and helps to protect the brain from shock and injuries. It is a part of the axial skeleton.
Clavicle : Clavicles are observed to be S-shaped bones that help to position the arms on the body. It is a long bone and plays a major role as a connection between the shoulder blade and the sternum or the breastbone. It is a part of the appendicular skeleton.
Vertebrae : The vertebrae give rise to the vertebral column and ribs form the thoracic cage. It is a bone of an axial skeleton.

Hence, the correct answer is option (C)

Note: The appendicular skeleton makes an important part of the skeleton along with the axial skeleton. It is composed of the pectoral girdle, pelvic girdle, forelimbs and the lower limbs. The pectoral girdle composed of the clavicles and the scapula bone and pelvic girdle contains the lower limbs. The ribs and vertebrae are parts of the axial skeleton while cranium is the bone that is of cranial cavity.