Chapter 7
skeletal muscle
all of the above
tendons
attach muscle to bones
Insertion
attachment to the more moveable bone
sacromere
basic functional unit of skeletal muscle
Atrophy
benefits of regular excercise including all of the following except:
calcium
connecting bridges between myofilaments form properly only if______ is present
tetanus
contractions that "melt" together to produce a sustained contraction are called:
Aerobic training
endurance training also known as:
aerobic training
endurance training is also called
Bursae
fluid-filled sacs
dorsiflexion refers to:
foot movements
increse in muscle size
hypertrophy
joint
in most cases, isotonic contraction of muscle produces movement at a:
twitch contractions can be easily seen in:
isolated muscles can be easily seen in:
myofilament
microscope threadlike structures found in skeletal muscle fibers
flexion
movement that makes the angle between 2 bones smaller
abduction
moving a part away from the midline
adduction
moving a part toward the midline
motor neuron
muscle cells are stimulated by a nerve fiber called a:
Isometric
muscle does not shorten and no movement results, the contraction is:
strength training
muscle hypertrophy can be best enhanced by a program of:
synergists
muscle that help other muscles produce movement
body
muscle unit, excluding the ends
all of the above
physiological muscle fatigue is caused by:
disuse atrophy
prolonged inactivity causes muscles to shrink in mass, producing a condition called:
myosin
protein that forms thick myofilaments
Actin
protein that forms thin myofilaments
Isometric
pushing against a wall is an example of which type of contraction
muscle fibers
specialized contractile cells of muscle tissue
pronation
turn the palm of your hand from an anterior to posterior posistion
Isotonic
walking is an example of which type of contraction?
rotating
when you move your head from side to side as in shaking your head "no"
rectus femoris
which of the following is not a hamstring muscle
muscle length remains constant
which of the following statements concerning isometric contractions is true?
Origin
Attachment to more stationary bone
Smooth Muscle
Moves food into stomach, nonstriated, found in hollow internal organs, maintains normal blood pressure
muscles attachment to the more stationary bone is called its:
Origin
Skeletal Muscle
Striated, Voluntary, Attaches to bone
Cardiac Muscle
Striated, keeps blood circulating through the vessels, involuntary
