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Muscle Terminology
Muscle Movement
Muscle Characteristics
Types of Muscles
Miscellaneous
100
What is the term used to describe the state of partial muscle contraction?
Muscle tone
100
Name two proteins found in muscle fibers:
Myosin and Actin
100
How many layers of connective tissue does a muscle contain?
3
100
What are the three types of muscles?
Cardiac, Smooth and Skeletal
100
What is the neurotransmitter found at the NMJ of the muscular system?
Ach
200
The word that characterizes a severe tightening of the flexor muscle:
Contracture
200
Name the mineral that is released by the SR
Ca
200
A muscle cell is called a:
Muscle fiber
200
This muscle is voluntary, and creates movement:
Skeletal
200
What is glycogen?
Stored energy
300
What is the difference between Biceps and Triceps?
Biceps: has 2 heads Triceps: has 3 heads
300
The movement theory of muscle contraction is called the:
Sliding filament theory
300
What are the three layers of organization of fibers in the muscles? (Connective Tissue)
Epimysium, Perimysium and Endomysium.
300
This muscle is involuntary, and lightly striated:
Cardiac
300
What are the 3 GROUPS of muscles? Explain them.
Agonist: primer mover Antagonist: opposite action of agonist Synergist: group of muscles working together for the same action
400
What is the ability for the muscle to undergo a shortening, becoming thicker?
Contractility
400
What are the two proteins that calcium shifts?
Troponin and Tropomyosin
400
The more fixed part of where the muscle attaches is called the:
Origin
400
This muscle is involuntary and makes up the walls of hollow body organs:
Smooth
400
Name two additional stores of energy in the muscle:
Myoglobin, Fatty acids, Creatine phosphate
500
Give the literal meaning of the opposing terms, pronator and supinator.
Pronator: turns the palm of the hand down. Supinator: turns the palm of the hand up.
500
The point at which the nerve and the muscle meet is called the:
NMJ
500
The part of muscle attachment that creates the movement is called the:
Insertion
500
Name the four functions of skeletal muscle:
Attaches to bones to provide voluntary movement Produces heat and energy for the body Helps maintain posture Protects internal organs
500
Describe Oxygen debt
Muscles operating anaerobically are in this state until there is enough oxygen to convert the lactic acid to other substances.