Characteristics of Skeletal Muscles
Skeletal muscles move through..
voluntary contraction
The bicep is named after....
number of origins (2)
The sutures located on the skull can be classified as...(function)
The muscle that relaxes when contraction occurs is called..
Antagonist
Skelatal muscles are made up of fibers known as ______ fibers. Once these fibers are combined, they are termed ______ fibers.
striated / paralellfibers
If the direction of the muscle fibres runs diagonally it is called..
Oblique
The joint type located in your knee is....
Hinge-open/close
Some muscles stabilize the agonist; they are defined as..
The fixators.
Skeletal muscles encompass __-__% of your overall body mass. These muscles provide movement and ______ to your body.
30-40%. support.
A rounded muscle is defined....
teres
Three types of synovial joints are...
Pivot
Hinge
Condyloid
Saddle
Plane/Gliding
Ball and socket
When the gastrocnemius is flexed, the muscle classified as the antagonist is...
tibialis anterior
concentric contraction involves _______
Eccentric contraction involves _______
Isometric contraction involves _______
shortening muscle fibers
lengenthing fibers
contraction with no change in length/size of muscle
A SHORT muscle is named... and a SMALL muscle is named...
short-brevis
small-minor
The study of joints is called...
Arthrology
The part of the muscle attached to the stationary bone is..
and the part of the muscle attached to the movable bone is..
Origin
insertion
The three parts of a skeletal muscle are the ______, the _________, and the _____. Their properties are...
Origin, insertion and belly.
origin-attachment of a muscle - stationary bone
insertion-attachment of a muscle - moveable bone
belly-fleshy area between origin and insertion
The naming components used in zygomaticus minor are...
origin and size
The three functions AND structural classifications are...
Synarthrosis-fibrous
Amphiarthrosis-cartilaginous
Diarthrosis-synovial
The skeletal muscle that moves with the agonist while increasing force is..
Synergist