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25 Cards in this Set

  • Front
  • Back
Number of muscles in the human body
650
Muscles act as the ______ for the human body. This movement is caused by the way in which muscles pull on the skeleton.
Movers
Supplies the forces that enable the body to perform physical activity. When a muscle acts (shortens), it moves a bone by pulling on the tendon that attaches the muscle to the bone.
Muscular System
Provide the support system for soft tissue, providing protection for internal organs, and act as an important source of nutrients and blood constituents.
Bones
They are tough, hard, and elastic. They are rigid levers for locomotion.
Bones
There are ___ different type of bones.
4
Diaphysis/Epiphysis (centers of ossification) such as clavicle or femur
Long Bones
carpus, tarsus, patella
Short Bones
scapula, skull
Flat Bones
vertebrae, maxilla, mandible, and coccyx
Irregular Bones
Consists of the skull, the vertebral column, sternum, and ribs.
Axial Skeleton
Made up of the bones of the upper and lower extremities
Appendicular Skeleton
An outer layer of fibrous connective attaches the bone to ____, _____ _____, and _____ _____.
muscles, deep fascia, joint capsules
Outer and inner layers that cover the bones. Anchors the muscles to bone.
Periosteum
Outer layer of connective tissue that covers muscle.
Epimysium
Many bundles of muscle fibers that a single muscle is made up of.
Fasciculi
Runs from end to end of muscle and exists within the muscle tissue surrounding the fibers and giving rise to muscle bundles.
connective tissue
The prime mover of a contraction.
Agonist Muscle
Muscle that performs the opposite action.
Antagonist Muscle
Muscles are responsible for these movements
extension, flexion, abduction, adduction, elevation, depression, and rotation
There types of muscle tissue
smooth, skeletal, cardiac
Responsible for creating power and force
Skeletal Muscles
Occur when the muscle fibers shorten.
Concentric
Muscle actions when active muscle fibers elongate.
Eccentric
A type of muscular activity in which there is tension in the muscle but it does not shorten or lengthen.
Isometric