Muscle fiber contraction and nerve impulse conduction are similar in that both are response.

Smooth muscle has actin/myosin, why is it not striated? (consider what striation can provided)

Describe and explain the sliding filament model of contraction. Be sure to include in your response a comparison between a relaxed and contracted sarcomere of a muscle fiber.

Lawrence Cherono from Kenya won the 2011 Boston Marathon. He probably has a predominance of in the muscle of his legs. fast twitch fibers fat intermediate twitch fibers slow twitch fibers

A muscle cannot respond to appropriate nerve stimuli. Which muscle characteristic is impaired? Contractility Extensibility Elasticity Irritability

What effect does increasing the frequency of action potentials in a skeletal-muscle fiber have upon the force of contraction? comments: please give me answer pricise and relevant to the question thanks

The amount of resistance overcome in proportion to the amount of effort expended is known as:  an eccentric contraction.  an isometric contraction.  the mechanical advantage of a muscle.  the physiological advantage of a muscle.

By what mechanism do actin and myosin "complete" a muscle contraction?     Folding   Bending   Sliding   Pulling

Skeletal, cardiac, and smooth muscle cells are distinctly different from each other in numerous ways. Indicate how they differ in these specific ways (give the anatomical differences and the corresponding physiological consequences – structure and function). -Type of innervation -Contractile filament organization -Mechanism for contracticle activation and final contractile response

Slow twitch muscle fibers are characterized by all of the following EXCEPT: O a) used in endurance type of activities O b) contract rapidly and forcefully Oc) resistant to fatigue O d) have a direct relationship to the oxidative energy system