ch. 10 terms Flashcards
Muscles can only _____; never ____
pull, push
_______ mover (agonist) is the muscle that has major responsibility for
producing a specific movement
prime
____________ opposes or reverses particular movement when prime mover is active
Antagonist
Prime mover and Antagonist are located on the ________ sides of the joint across which they act
opposite
______ helps prime mover by adding extra force to same movement and
reducing undesirable or unnecessary movement
Synergist called _________ when the synergist _________ the bone or
muscle’s origin
synergist, fixator, immobilizes
- Prime mover of _____ movement
- Antagonist for ______ movement
- Synergist for ______- movement
one, diff, third
How are Skeletal Muscles named?
1. Muscle ______
2. Muscle _____
3. Muscle ______
4. ______ of Muscle Fascicles
5. _____ of Origins
6. _______ of Attachments
7. Muscle ______
location, shape, size, direction, number, location, action
- Maximus (________)
- Medius (_______)
- Minimus (________)
- Longus (_____)
- Brevis (______)
largest, middle, smallest, long, short
- _____ = fibers run straight
- _____ = fibers run at right angles
- _____ = fibers run at angles to imaginary defined axis
rectus, transversus, oblique
- Biceps = _ origins
- Triceps = _ origins
- Quadriceps = _ origins
2, 3, 4
In Circular, fascicles arranged in concentric rings, generally surround
openings called _________
sphincters
In ________, fascicle arrangement has a broad origin
convergent
In _________, there are spindle-shaped muscles with parallel fibers and are thick in middle and tapered on each end
fusiform
In __________, short fascicles attach obliquely to a central tendon running
length of muscle
pennate
unipennate is ___, bipennate is __, multipennate is ____
1, 2, many