Skeletal System Flashcards
These parts make up the AXIAL skeleton.
The axial skeleton is composed of the skull, vertebrae and rib cage.
This is the name of the division of the skeleton that includes all appendages and the pelvis.
The appendicular skeleton includes the bones of all appendages and the pelvis.
These are the 5 functions of the skeletal system.
The 5 functions of the skeletal system are:
- Protect organs
- Produce blood cells
- Store minerals
- Allow movement
- Support and structure for the body
This is the function of cartilage.
The function of cartilage is to add flexibility when needed.
Joints are classified by this property.
Joints are classified by the type and level of movement.
The sutures in the skull are this type of joint.
Skull sutures are immovable joints because they are fused together.
This is the function of red bone marrow.
Red bone marrow makes blood cells.
This is the function of yellow bone marrow.
Yellow bone marrow produces fat cells.
True or False? Spongy bond is soft & squishy.
False - spongy bone is porous but solid.
This is the tough connective tissue surrounding some bones.
The periosteum is tough connective tissue that surrounds some bones.
This is the name of the process that hardens bones.
Ossification is the process that hardens bones.
This is how long ossification generally takes in humans.
Ossification takes about 20 years to complete & occurs in embryos, newborns, toddlers and teens.
This connective tissue connects muscles to bones.
Tendons connect muscles to bones. Think “Achilles’s heal”.
These are passageways that run through compact bone.
Haversian Canals run through compact bone to allow nerves and blood vessels to feed the bone.
Ligaments connect these together.
Ligaments connect bone to bone.
This is another name for the breastbone.
The sternum is also called the breastbone.
True or False? Compact bone is important because it reduces the weight of the skeleton.
False - Compact bone is very dense & heavy. Spongy bone reduces weight.
These are the tiny shock absorbing sacs found in some joints.
Bursae are sac that add padding to joints.
This is the name of the lubricating fluid found in joints.
Sinovial fluid reduces friction in joints.
These bones make up the palm of your hand.
The metacarpals are the bones found in the palm of your hand.
A Ball and Socket joint would be classified as this type of movable joint.
Ball and Socket joints are FREELY movable joints.
These are examples of a slightly movable joint.
The joints between the vertebrae are only slightly movable.
These are the 2 minerals stored by bones.
Bones store calcium and phosphorus.
This is the number of bones that is found in an adult human skeleton.
Adults have 206 bones in their skeletons.
