Bone Structure and Function Quiz

Bone marrow is a connective tissue in bones that produces blood cells.

Yellow marrow stores fat for energy.

Red marrow produces red and white blood cells and platelets.

Bones protect internal organs like the brain and spinal cord.

Bones provide attachment points for muscles, enabling movement.

Bones store and release calcium and phosphorus.

The end of a long bone that forms a joint with another bone.

The shaft of a long bone.

A bone fracture where the broken bone pierces the skin.

A bone fracture where the broken bone stays within the skin, but is out of alignment.

The process of manipulating a fractured bone back into its proper alignment.

Fracture healing where osteoblasts and osteoclasts directly unite broken bone fragments by forming new bone tissue.

Fracture healing where cartilage patches form between broken bone fragments before regeneration begins.

Dense, tightly packed tissue forming the outer layer of most bones. It's made of a continuous extracellular matrix, providing strength and support.

A light, porous bone tissue with irregular, thin bony projections. It's found inside bones and reduces bone weight while resisting compression.

The non-living, extracellular substance that forms the structural framework of bone. It's made up of collagen fibers for flexibility and calcium phosphate salts for hardness.

Undifferentiated stem cells found in bone tissue. They can develop into osteoblasts as needed for bone growth and repair.

Bone-forming cells that secrete collagen and other proteins to create the bone matrix.

Mature bone cells embedded in the bone matrix. They maintain bone tissue and help regulate calcium levels.

Large cells responsible for resorption of old bone tissue. They break down bone to release calcium and remodel bone structure.

A disorder of bone remodeling where osteoclasts are overactive, leading to bone fractures, deformities, and pain. It primarily affects people over 40.

Undifferentiated stem cells in bone tissue that can develop into osteoblasts as needed for bone growth and repair.

Bone-forming cells that secrete collagen and other proteins to create the bone matrix.

Mature bone cells embedded in the bone matrix that maintain bone tissue and help regulate calcium levels.

Large cells responsible for resorption of old bone tissue, breaking it down to release calcium and remodel bone structure.

A disorder of bone remodeling where osteoclasts are overactive, leading to bone fractures, deformities, and pain. It primarily affects people over 40.

Bones have several important functions in the body, including protecting internal organs, storing and releasing fat, producing blood cells, storing and releasing minerals, facilitating movement, and providing structural support.

Bones store and release minerals such as calcium and phosphorus, which are essential for various bodily functions.

A tough, vascular covering of tissue that surrounds the bone.

A hollow chamber within the diaphysis of a long bone, containing bone marrow.

Hyaline cartilage that covers the ends of bones at joints, providing cushioning and smooth movement.

Bones are strong because of the hard material they are made of, called calcium phosphate. This makes them able to support our weight and protect our organs.

There are two types of bone tissue: compact bone, which is dense and strong like the outer shell of a bone, and spongy bone, which is lighter and has a honeycomb structure like a sponge.

A closed fracture means the broken bone stays inside the skin, while an open fracture means the broken bone sticks out through the skin.

Unlike some injuries, a fracture heals by forming a new bone tissue. This new tissue is called a callus, which eventually replaces the broken bone.

Osteoblasts are bone building cells, they create new bone tissue, while osteoclasts are bone-destroying cells, they break down old bone tissue allowing for remodeling.

Direct bone healing involves new bone forming on the fracture site directly, while indirect bone healing involves cartilage forming first before new bone forms.

These areas have a high concentration of spongy bone, which is more prone to weakening due to the overactive osteoclasts in Paget's disease.

Reduction means setting the broken bone back into its correct position, either through surgery (open) or manipulation (closed).

The callus forms a bridge between broken bone pieces, providing stability and strength for the healing process.