Nutrient canal

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Nutrient Canal

Diagram showing the blood supply to the bone, including the nutrient canal.

The nutrient canal is a small tunnel within the bone that allows the passage of blood vessels and nerves. These canals are crucial for the nourishment and growth of bones, as they provide the necessary nutrients and oxygen to the bone tissue.

Structure

Nutrient canals are typically found in the diaphysis of long bones, such as the femur, tibia, and humerus. They begin at the nutrient foramen, a small opening on the surface of the bone, and extend into the medullary cavity. The nutrient foramen is usually located on the shaft of the bone and is directed away from the growing end of the bone.

Function

The primary function of the nutrient canal is to facilitate the entry of the nutrient artery into the bone. This artery is responsible for supplying blood to the inner layers of the bone, including the bone marrow. The nutrient artery divides into ascending and descending branches within the medullary cavity, ensuring that the entire length of the bone receives adequate blood supply.

Clinical Significance

Understanding the location and function of nutrient canals is important in orthopedic surgery and the treatment of bone fractures. Damage to the nutrient artery during surgical procedures can lead to impaired blood supply and delayed healing of the bone. Additionally, the size and number of nutrient canals can vary between individuals, which may affect the healing process.

Related Pages

• Nutrient foramen
• Bone
• Blood vessel
• Orthopedic surgery
• Bone fracture