4.1 Bone Structure Flashcards
What is the structure and location of the compact bone?
The bone is dense, hard, and strong. It is found centrally on the long bone. It is made up of layers (lamellae) of a protein called collagen
What is the function of the compact bone?
It provides protection and strength.
What is the structure and location of the spongy bone?
It is porous and less dense. It is most likely found at the end of long bones. It is composed of a network of connecting bone and spaces.
What is the function of the spongy bone?
Helps with shock absorption. The spaces between are often filled with marrow and blood vessels.
What is the structure and location of bone marrow?
Bone marrow is a semi-solid tissue found within bones.
Red- found mostly in the spongy bone at either end of the long bones.
Yellow- mostly found in the medullary cavity (hollow center) of long bones
What is the function of bone marrow?
Red- can produce red blood cells, white blood cells or platelets.
Yellow- made mostly of fat and contains stem cells that can become cartilage, fat or bone cells.
What is the structure and location of cartilage?
A strong, flexible, connective tissue that protects your joints and bones. It covers the end of your bones around the joints in a thin layer.
What is the function of cartilage?
Allows for smooth movements of the joint. It reduces friction and prevents bones from rubbing together when joints move.
What is the structure and location of the harversian canal?
Microscopic tubes in the center of each osteon that houses nerves, capillaries, and lymph.
What is the function of the harversian canal?
It allows bone to get oxygen and nutrition.
What is the structure and location of lamellae?
It is formed up of layers of lamellae. Each lamellae is made up of collagen. The space between each layer are known as lacunae, which houses osteocytes.
What is the function of lamellae?
Strength and they house osteocytes.
What is the structure and location of osteocytes?
They can be found within each lacunae and are mature bone cells.
What is the function of osteocytes?
They help the maintain the protein and mineral content of the bone tissue, and help repair damaged bones by passing on signals to other bone cells to make new bone tissue or remove old bone tissue.
What is the structure and location of canaliculi?
Small channels that link together the lacunae.
