The axis is the only bone listed that is not a long bone. The axis is the second cervical vertebra (C2) and is classified as an irregular bone.

The endosteum is the layer that is found deep to all layers. It is found in the inner lining of the bone. Meanwhile, the periosteum is the most superficial layer of the bone which compromises the outer covering of bones.

When the rhomboids contract, they pull on the scapula, causing the inferior angle of the scapula to swing up toward the spine. This causes the glenoid fossa to orient downward. Thus, the scapula is downwardly rotated by the rhomboids at the scapulocostal joint.

The endosteum is the layer that is found deep to all layers. It is found in the inner lining of the bone. Meanwhile, the periosteum is the most superficial layer of the bone which compromises the outer covering of bones.

When the rhomboids contract, they pull on the scapula, causing the inferior angle of the scapula to swing up toward the spine. This causes the glenoid fossa to orient downward. Thus, the scapula is downwardly rotated by the rhomboids at the scapulocostal joint.

The axis is the only bone listed that is not a long bone. The axis is the second cervical vertebra (C2) and is classified as an irregular bone.

The correct answer is osteons. An osteon (or haversian system) is the fundamental unit of most compact bone. Osteons are formed during the process of bone remodeling, but are not one of the three types of cells involved in bone homeostasis.

Bone homeostasis involves the development, growth and remodeling of bones. The three cell types responsible for these processes are osteoblasts, osteocytes and osteoclasts. Each cell type refers to a different process:

• osteoblasts = bone forming cells
• osteocytes = mature bone cells
• osteoclasts = break down and reabsorb bone

All of these layers make up hyaline cartilage. The superficial layer is distinguished by the parallel (relative to the articular surface) arrangement of it's collagen fibers. The middle zone is characterized by the oblique orientation of its fibers. The deep zone has collagen fibers that are oriented perpendicularly to the articular surface. The calcified layer connects directly to the underlying (subchondral) bone.

The correct answer is osteons. An osteon (or haversian system) is the fundamental unit of most compact bone. Osteons are formed during the process of bone remodeling, but are not one of the three types of cells involved in bone homeostasis.

Bone homeostasis involves the development, growth and remodeling of bones. The three cell types responsible for these processes are osteoblasts, osteocytes and osteoclasts. Each cell type refers to a different process:

• osteoblasts = bone forming cells
• osteocytes = mature bone cells
• osteoclasts = break down and reabsorb bone

All of these layers make up hyaline cartilage. The superficial layer is distinguished by the parallel (relative to the articular surface) arrangement of it's collagen fibers. The middle zone is characterized by the oblique orientation of its fibers. The deep zone has collagen fibers that are oriented perpendicularly to the articular surface. The calcified layer connects directly to the underlying (subchondral) bone.