Question

complete the sentences describing the bones of the axial skeleton.

1. (click to select) consists of structures that support and protect the organs of the head, neck, and trunk.
2. the (click to select) is composed of the (click to select) and facial bones.
3. the (click to select) consists of many (click to select) that are separated by intervertebral discs.
4. the (click to select) is composed of (click to select) pairs of (click to select) and the sternum.

Explanation:

Identify the skeletal division

Using the Skeletal System Organization knowledge point, we classify the skeleton into axial and appendicular divisions. The division that forms the central axis of the body and supports the head, neck, and trunk is the Axial Skeleton. Thus, the first blank is "axial".

Analyze the skull components

Using the Axial Skeleton knowledge point, the skull is divided into two main groups of bones: those that enclose the brain and those that form the framework of the face. The skull is composed of the cranial bones and facial bones. Thus, the blanks in sentence 2 are "skull", "cranial", and "facial bones".

Analyze the vertebral column

Using the Axial Skeleton knowledge point, the central support column of the back consists of individual bones separated by intervertebral discs. This structure is the vertebral column, which is composed of vertebrae. Thus, the blanks in sentence 3 are "vertebral column" and "vertebrae".

Analyze the thoracic cage

Using the Axial Skeleton knowledge point, the protective cage of the chest is the thoracic cage. It is composed of 12 pairs of ribs and the sternum. Thus, the blanks in sentence 4 are "thoracic cage", "12", "ribs", and "the sternum".

Answer:

Question 1

The <blank>axial</blank> skeleton consists of structures that support and protect the organs of the head, neck, and trunk.

Question 2

The <blank>skull</blank> is composed of the <blank>cranial</blank> and facial bones.

Question 3

The <blank>vertebral column</blank> consists of many <blank>vertebrae</blank> that are separated by intervertebral discs.

Question 4

The <blank>thoracic cage</blank> is composed of <blank>12</blank> pairs of <blank>ribs</blank> and the sternum.