Muscle Tissue And Organization Flashcards
What are the easily observed mucles?
Skeletal muscles
What muscle is essential for propelling materials through our internal tubes?
Smooth muscle
What type of muscle is essential for pumping blood?
Cardiac muscle
What is an increase in muscle fiber size?
Hypertrophy
What are circular muscle bands?
Sphincter
What attaches muscle to bone?
Tendon
What is a thin flattened sheet of tendons?
Aponeurosis
Neurons that stimulate muscle contraction
Motor (Efferent) neurons
Neurons that send impulses to the brain and spinal cord about the activity of the muscles
Sensory (Afferent) neuron
Bundles of muscle fibers that lie parallel to each other within the muscle
Fascicles
Muscles with their fibers concentrically arranged around an opening or recess?
Circular muscles
Muscles that have fascicles that run parallel to it’s axis
Parallel muscles
What is the central body of parallel muscles?
Belly
Muscles that have widespread muscle fibers that converge on a common attachment site
Convergent muscles
Muscles with tendons and muscle fibers resembling a large feather
Pennate
All muscles fibers on the same side side of the tendon
Unipennate
Muscle fibers on both sides of the tendon
Bipennate
Tendon branches within the muscle
Multipennate
An elongated rigid object that rotates around a fixed point (fulcrum)
Levers
What is in the middle of a first class lever?
Fulcrum
What is in the middle of a second class lever?
Resistance
What is in the middle of a third class lever?
Effort
What does a first class lever look like?
Seesaw
What is an example of a first class lever?
Atlanto-occipital
What does a second class lever look like?
Wheelbarrow
What is an example of a second class liver?
Raising the body onto the balls of the feet
What does a third class lever look like?
Drawbridge
What is an example of a third class lever?
Elevation of mandible
What is the most common type of lever in the body?
Third class
A muscle that contracts to produce a particular movement
Agonist (Prime mover)
Muscle whose action oppose those if the agonist
Antagonist
Muscle that assists the prime mover in performing it’s action
Synergist
