Skeleton System Flashcards
What is one function of the skeletal system?
Protection
Encasing essential organs, such as the ribcage protecting the heart and lungs from injury.
What is another function of the skeletal system?
Support
Provides a framework for the body.
What is a function of the skeletal system related to body weight?
Bearing the weight of the body
How do joints contribute to the skeletal system?
Provide movement for bones
What does the skeletal system store?
Minerals and fat
Storage of minerals to be released into the bloodstream and fat in yellow bone marrow.
What process is involved in the manufacturing function of the skeletal system?
Hematopoiesis
Production of red and white blood cells from red bone marrow.
What are bones?
Bones are a solid matrix of living cells and fibers surrounded by calcium deposits.
How are bones classified?
Bones are classified by their shape.
What are irregular bones? Give an example.
Irregular bones are one classification of bones.
Example: vertebrae
What are flat bones? Give an example.
Flat bones are one classification of bones.
Example: scapula
What are short bones? Give an example.
Short bones are one classification of bones.
Example: wrist
What are long bones? Give an example.
Long bones are one classification of bones.
Example: femur
What are sesamoid bones? Give an example.
Sesamoid bones are one classification of bones.
Example: patella (knee cap)
What are the two basic regions of a long bone?
Long bones have two basic regions: Diaphysis and Epiphyses.
What is the Diaphysis?
The Diaphysis is the shaft, or long part, of the bone.
What are Epiphyses?
Epiphyses are the ends of the bone.
What is the epiphyseal plate?
The epiphyseal plate, or growth plate, is a thin layer of internal cartilage between the Diaphysis and Epiphyses.
What covers the ends of the Epiphyses?
The ends of the Epiphyses are covered with an external layer of cartilage called articular cartilage.
What is the function of articular cartilage?
Articular cartilage provides smooth movement of joints and cushions from shock.
What is found in the diaphysis of a long bone?
A hollow medullary cavity is found.
None
What fills the medullary cavity in young people?
Red bone marrow fills this cavity.
None
What happens to red bone marrow as people age?
Red marrow is replaced with fatty yellow bone marrow.
None
What process occurs within the bone marrow?
New blood cells are produced, called hematopoiesis.
None
What are the functions of the skeletal system?
The skeletal system provides many functions for the body.
How are bones classified?
Bones are classified by shape.
What is found in the center of the diaphysis?
Bone marrow is found in the center of the diaphysis.
What surrounds the epiphyses of bones?
Articular cartilage surrounds the epiphyses.
Where is spongy bone found?
Spongy bone is found at the ends of long bones beneath the compact bone.
What is the outer layer of bone called?
The outer layer of bone is called periosteum.
What is the function of the periosteum?
The periosteum is the location of muscle attachment and bone repair.
What lies beneath the periosteum?
Beneath the periosteum is a thick layer of compact bone.
What type of tissue makes up the periosteum?
The periosteum is made of tough connective tissue.
What is spongy bone?
Spongy bone is a type of bone that has a porous, lattice-like structure.
What is compact bone?
Compact bone is a dense and solid type of bone that provides strength and support.
What is spongy bone?
Spongy bone is a type of bone that has a porous, lattice-like structure.
What is compact bone?
Compact bone is a dense and solid type of bone that provides strength and support.
