Skeletal Organization
The number of bones found in the average adult human skeleton.
What is 206?
The term for the shaft or middle section of a long bone.
What is the diaphysis?
This type of bone, including the sternum and ribs, primarily serves the function of protection.
What are flat bones?
The term for mature bone cells.
What are osteocytes?
The joint type that allows for the widest range of motion, found in the shoulder and hip.
What is a ball and socket joint?
The two main divisions of the human skeleton.
What are the axial and appendicular skeletons?
The name for the ends of a long bone.
What are the epiphyses?
These bones, such as the femur and humerus, function to support weight and facilitate movement.
What are long bones?
These tiny chambers enclose and house osteocytes.
What are lacunae?
The specific name for the end of a bone that is closest to the center of the body.
What is the proximal epiphysis?
The approximate number of bones a human has at birth before some fuse together.
What is 270?
Found in the medullary cavity, this substance serves as fat storage.
What is yellow marrow?
Small, specialized bones like the patella that help reinforce tendons.
What are sesamoid bones?
Osteocytes form these concentric rings within the bone matrix.
What are lamellae?
The type of diarthrotic joint found in the elbow and knee.
What is a hinge joint?
This skeletal division consists of the skull, hyoid bone, vertebral column, and thoracic cage.
What is the axial skeleton?
The tough membrane that covers the outer surface of a bone.
What is the periosteum?
The primary functions of short bones like carpals and tarsals.
What are stability and movement?
The central opening in an osteon that houses blood vessels.
What is the Haversian canal?
This provides padding at the ends of bones where they meet to form a joint.
What is articular cartilage?
Part of the appendicular skeleton that includes the scapula, clavicle, and arms.
What is the pectoral girdle?
Also known as the growth plate, it is located between the epiphysis and diaphysis.
What is the epiphyseal line?
The classification for bones with complex shapes, such as the vertebrae or pelvis.
What are irregular bones?
The tiny canals that provide a link between individual osteocytes.
What are canaliculi?
These canals run perpendicular to Haversian canals to connect them to one another.
What are Volkmann’s canals?