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Assignment 1
Axial and Appendicular Muscles Review
Question | Answer |
---|---|
What is the point of attachment called that does not move when the muscle contracts? | Origin |
What are the 6 muscle shapes? | Parallel, Covergent, Pennate, Fusiform, Spiral, and Circular |
Which is the point of attachment that moves when the muscle contracts? | Insertion |
Which muscles that when contracting, directly oppose prime movers? | Antagonists |
Which type of muslce function as joint stabilizers? | Fixator Muscles |
What is the simple mechanical device that makes the work of moving a weight or other load easier in some way? | Lever System |
What are the 4 major components of any Lever System? | 1. A rigid rod or bar (bone) called a lever 2. A fixed pivot, or fulcrum (F), around which the lever moves (joint) 3. A load (L), or resistance, that is moved 4. A force, or pull (P), that produces movement (muscle contraction) |
What draws the eyebrows together and pro-duces vertical wrinkles above the nose? | corrugator supercilii |
What encircles and closes the eye? | Orbicularis Oculi |
What is Mastication? | are muscles responsible for chewing movements |
What is an extensor of the head called which helps flex it laterally? | semispinalis capitis |