MICROANATOMY

MUSCLE NERVE CARTILAGE BONE

BONE STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is called the outer surface of bone?
A
Proximal epiphysis
B
Medullary cavity
C
Perioustem
D
Diaphysis
Explanation: 

Detailed explanation-1: -The outer covering of the bone is known as the periosteum; the periosteum covers the whole surface of the bone except at the ligament attachment, tendon attachment, and an area covered by articulating cartilage.

Detailed explanation-2: -The periosteum consists of an outer fibrous layer, and an inner cambium layer (or osteogenic layer). The fibrous layer is of dense irregular connective tissue, containing fibroblasts, while the cambium layer is highly cellular containing progenitor cells that develop into osteoblasts.

Detailed explanation-3: -The tough, thin outer membrane covering the bones is called the periosteum. Under the hard outer shell of the periosteum are tunnels and canals. Through these, blood and lymphatic vessels carry nourishment for the bone. Muscles, ligaments, and tendons may attach to the periosteum.

Detailed explanation-4: -The periosteum is a thin layer of connective tissue that covers the outer surface of a bone in all places except at joints (which are protected by articular cartilage). As opposed to bone itself, it has nociceptive nerve endings, making it very sensitive to manipulation.

Detailed explanation-5: -The periosteum is a complex structure composed of an outer fibrous layer that lends structural integrity and an inner cambium layer that possesses osteogenic potential. During growth and development it contributes to bone elongation and modeling, and when the bone is injured, participates in its recovery.

There is 1 question to complete.