NFPT Chapter 4 Exam Questions and Correct Answers Graded A+
Three types of muscle tissue - Answers skeletal, smooth, cardiac
60% - Answers Approximately what percentage of the cells in your body are muscle tissue cells?
Molecule - Answers This is the smallest unit of a chemical compound.
voluntary; involuntary - Answers Skeletal muscle is under ___ control, and smooth muscle is under ___
control.
vasodilation/widening; vasoconstriction/narrowing - Answers The movement of blood from one area of
the body to another requires the ___ of vessels in the region where blood is needed, and ___ of the
vessels in all other regions.
Epimysium; Perimysium; Endomysim - Answers The structures of skeletal muscle are held together by
connective tissues within each layer. From the largest connective structure to the smallest: the ___
holds the entire skeletal muscle together; the ___ holds a fascicle, or bundle of muscle fibers, together
inside the skeletal muscle; and the ___ connects all of the fibers together inside of one muscle fiber
bundle.
Myocyte - Answers An individual muscle fiber, or ___ , is the actual cell found in muscle tissue.
False - Answers Different muscles of the same group may have more than one origin (ending point) but
they will share a common insertion (starting point).
atrophy; hypertrophy - Answers The process of ___ occurs whereby a given muscle tissue will shrink as
the result of it not being used; conversely, the process of ___ occurs whereby a given muscle tissue
enlarges due to use/overuse.
Sarcoplasm - Answers viscous material that encloses individual fibers
Sarcolemma - Answers membrane that myofibrils are wrapped in
Sarcomeres - Answers the functional units of skeletal muscle occurring in repeating segments along the
myofibril.
Sacroplasmic Rectulum - Answers releases calcium ions during muscle contraction and absorbs them
during relaxation
Motor Unit - Answers This is made up of one motor neuron, its axon and muscle fibers that are of the
same type; when it is activated all of its fibers contract.
Mitochondria - Answers Commonly referred to as the 'powerhouse' of the cell, these organelles inside a
cell that work primarily to produce the energy needed for daily activity and recovery.
Three types of muscle tissue - Answers skeletal, smooth, cardiac
60% - Answers Approximately what percentage of the cells in your body are muscle tissue cells?
Molecule - Answers This is the smallest unit of a chemical compound.
voluntary; involuntary - Answers Skeletal muscle is under ___ control, and smooth muscle is under ___
control.
vasodilation/widening; vasoconstriction/narrowing - Answers The movement of blood from one area of
the body to another requires the ___ of vessels in the region where blood is needed, and ___ of the
vessels in all other regions.
Epimysium; Perimysium; Endomysim - Answers The structures of skeletal muscle are held together by
connective tissues within each layer. From the largest connective structure to the smallest: the ___
holds the entire skeletal muscle together; the ___ holds a fascicle, or bundle of muscle fibers, together
inside the skeletal muscle; and the ___ connects all of the fibers together inside of one muscle fiber
bundle.
Myocyte - Answers An individual muscle fiber, or ___ , is the actual cell found in muscle tissue.
False - Answers Different muscles of the same group may have more than one origin (ending point) but
they will share a common insertion (starting point).
atrophy; hypertrophy - Answers The process of ___ occurs whereby a given muscle tissue will shrink as
the result of it not being used; conversely, the process of ___ occurs whereby a given muscle tissue
enlarges due to use/overuse.
Sarcoplasm - Answers viscous material that encloses individual fibers
Sarcolemma - Answers membrane that myofibrils are wrapped in
Sarcomeres - Answers the functional units of skeletal muscle occurring in repeating segments along the
myofibril.
Sacroplasmic Rectulum - Answers releases calcium ions during muscle contraction and absorbs them
during relaxation
Motor Unit - Answers This is made up of one motor neuron, its axon and muscle fibers that are of the
same type; when it is activated all of its fibers contract.
Mitochondria - Answers Commonly referred to as the 'powerhouse' of the cell, these organelles inside a
cell that work primarily to produce the energy needed for daily activity and recovery.
