Exam 8: A: Skeletal Tissues

Chondroitin is an amino sugar that is important in cartilage formation.

An important part of the bone matrix is a mixture of protein and polysaccharide called ground substance.

The region between the epiphyses and the diaphysis in a mature bone is called the metaphysis.

Because of repeated wear and tear,athletes and dancers tend to have less dense bones than people who exercise less often.

The internal table is the term used to describe the spongy bone on the interior of the skull.

When a compact bone is put under mechanical stress,it responds by forming wider osteons to help better distribute the stress.

Red marrow is found only in long bones.

Bones are the organs of the skeletal system.

Osteoclasts are nondividing osteoblasts that have become surrounded by matrix and lie within lacunae.

One function of bone is to store calcium and phosphorous for the body.

The periosteum is a connective tissue membrane that lines the medullary cavity.

The components of the inorganic matrix maintain the smooth surface and springy consistency of the bone.

Appositional growth of cartilage occurs when chondrocytes in the deep layer of the perichondrium begin to divide and secrete additional matrix.

Parathyroid hormone and calcitonin are of equal importance in regulating the calcium level of the blood.

Variations in the amount of ossification and resorption of bone tissue are age dependent.

The type of cartilage found in the symphysis pubis is fibrocartilage.

Osteogenesis involves the combined action of osteoblasts and osteoclasts.

Although bones are the main organs of the skeletal system,the system also includes ligaments and tendons.

Most bones of the body are formed from cartilage models.

Flat bones differ from short bones in that flat bones have an inner portion of cancellous bone covered on the outside with compact bone.