Skeletal System Anatomy Flashcards
What is the skeletal system composed of?
The skeletal system is composed of bones (osseous tissue) and cartilaginous tissues.
What functions do bones and cartilage serve?
They give the body its shape, form, and ability to move.
What is the role of bone in the body?
Bone is the supporting framework for your body.
What do bones and cartilage protect?
They possess the ability to support and protect softer tissues in the body.
What substances do bones serve as a reservoir for?
Bones serve as a reservoir for fats, minerals (especially calcium), and other substances vital to blood cell production.
What is the hard outer layer of bone called?
The hard outer layer of bone is made of compact (cortical) bone.
What covers the lighter spongy bone inside?
The compact bone covers the lighter spongy (trabecular) bone inside.
What is the fibrous tissue covering the outside of the bone called?
The outside of the bone is covered with fibrous tissue called periosteum.
What is the medullary cavity?
The medullary cavity is a space inside some bones that contains soft, spongy tissue called bone marrow.
What lines the medullary cavity?
The tissue lining the medullary cavity is called endosteum.
What do most bones start out as?
Most bones start out as a softer, more flexible form of tissue called cartilage.
How is bone formed from cartilage?
Cells in the body lay calcium down onto the cartilage to form bone.
What may remain at the ends of bones after bone formation?
Cartilage may remain at the ends to act as a cushion between bones.
What connects bones to form a joint?
Cartilage, along with ligaments and other tissues, connects bone to form a joint.
Where is cartilage mainly found in adults?
In adults, cartilage is mainly found at the end of some bones that are part of a joint.
