NASM Essentials of Personal Fitness Training: Basic Exercise Science - Skeletal System Flashcards
The bodys framework, composed of bones and joints
Provide a resting ground for muscles and protection of vital organs.
Junctions of bones, muscles, and connective tissue at which movement occurs. Also known as an articulation.
Portion of the skeletal system that consists of the skull, rib cage and vertebral column
Portion of the skeletal system that includes the upper and lower extremities.
The process of resorption and formation of bone.
A type of bone cell that removes bone tissue.
A type of cell that is responsible for bone formation.
The end of long bones, which is mainly composed of cancellous bone, and house much of the red marrow involved in red blood cell production.
They are also one of the primary sites for bone growth.
The shaft portion of a long bone
The region of long bone connecting the diaphysis to the epiphysis. It is a layer of subdividing cartilaginous cells in which growth in length of the diaphysis occurs
A dense memnrane composed of fibrous connective tissue that closely wraps all bone, except that of the articulationg surfaces in joints, which are covered by a synovial membrane.
The central cavity of bone shafts where marrow is stored
Articular cartilage (hyaline)
Cartilage that covers the articular surfaces of bones
Flattended or indented portions of bone, which can be muscle attachment sites
Projections protruding from the bone where muscles, tendons, and ligaments can attach
A series of irregularly shaped bones called vertebrae that houses the spinal cord
Joints that are held together by a joint capsule and ligaments and are most associated with movement in the body
Primary connective tissue that connects bones together and provides stability input to the nervous system, guidance, and the limitation of improper joint movement
No joint cavity and fibrous connective tissue; little or no movement
Ex. Sutures of the skull
Produces synovial fluid, has joint cavity and fibrous connective tissue
Ex. Knee (and most of other movable joints)
No axis of rotation; moves by sliding side-to-side or back and forth
Ex. Carpals of the hand
Formed y the fitting of condyles of one bone into elliptical cavities of another; move predominantly in one plane
Uniaxial; oves predominantly in one plane of motion (sagittal)
One bone fits like a saddle on another bone; moves predominantly in two planes (sagittal, joint of thmb frontal)
Ex. Only: carpometamarpal
Only one axis; moves predominantly in one plane of motion (transverse)
Most mobile of joints; moves in all three planes of motion
Long, cylindrical shafr and irregular or widended ends
Ex. Humerus, Femur
Similar in length and width and appear somewhat cubical in shape
Ex. Carpals of hand, tarsals of feet
Ex. Scapulae, patella
Unique shape and function
Small often round bones embedded in a joint capsule or found in locations where a tendon passes over a joint