Human Anatomy & Physiology Ch. 6 The Muscular System
Terms in this set (35)
The I band within a skeletal muscle fiber is indicated by letter:
The A band within a skeletal muscle fiber is indicated by letter:
The bare zone of the A band lacks thin filaments and is represented by letter:
The myofilament composed of actin is indicated by letter:
The epimysium is represented by letter:
The perimysium wraps a fascicle of muscle cells and is represented by letter:
The muscle fiber is indicated by letter:
The endomysium that wraps individual muscle fibers is indicated by letter:
Striated, voluntary, multinucleate muscle is classified as __________ muscle.
The epimysium covering on the outside of the muscle can blend into cordlike __________ or sheetlike ___________.
The plasma membrane of skeletal muscle cells is called:
Muscle tissue has the ability to shorten when adequately stimulated, a characteristic known as:
The ___ zone of a sarcomere contains no actin filaments while the skeletal muscle is at rest (noncontractile state).
the heads of the myosin myofilaments are called ________ when they link the thick and thin filaments together during skeletal muscle contraction.
The gap between the motor neuron and the muscle fiber it supplies at the neuromuscular junction is called the:
When a skeletal muscle is fully contracted, the _________ are closer to the thick filaments.
Anaerobic glycolysis produces ATP in the absence of:
A smooth, sustained contraction is called:
Contractions in which muscles do not produce movement or shortening are termed:
The movement that is commonly seen in a ball-in-socket joint, that includes a combination of flexion, extension, abduction, and adduction is called:
Muscles that perform opposite actions to one another are termed:
The arrangement of fascicles in orbicularis oris is:
The muscle referred to as the "smiling" muscles because it raised the corners of the mouth upward is the:
The _________ muscle runs deep to the external oblique muscle.
The quadriceps femoris muscle group is composed of the three vastus muscles and the ______ muscle.
Voluntary muscle tissue is:
an individual muscle cell
The type of muscle tissue pictured in figure 6.3 is:
The plasma membrane of a skeletal muscle cell is called the:
Smooth muscle cells are:
Which type of muscle tissue responds the fastest to stimulations to contract:
Which of the following is NOT a function of the muscular system:
the contractile unit between 2 z discs
A sarcomere is:
Which one of the following is composed of myosin protein:
Place these structures of the skeletal muscle in order from largest to smallest:
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