Kine 3312 Exam 1 questions and
answers 100% correct
are associated with bones and voluntary - correct answer ✔✔Skeletal Muscles
are found in hollow organs and involuntary - correct answer ✔✔Smooth Muscles
are found only in the heart and involuntary - correct answer ✔✔Cardiac muscles
They are called muscle fiber because of their shape, it resembles fiber - correct answer ✔✔Why
do you call individual muscle cells "muscle fibers"?
What is the name of the connective tissue that wraps around each muscle fiber and connects
muscle fibers with other muscle fibers? This is where capillaries exist. - correct answer
✔✔Endomysium
What is the name of the connective tissue in muscle where arterioles, venules, and nerve
branches exist? It wraps around each fascicle and connects fascicles with other fascicles. -
correct answer ✔✔Perimysium
What is the name of the connective tissue that surrounds the entire muscle sections? - correct
answer ✔✔Epimysium
are dormant nuclei (not cells) in muscle fibers and responsible for muscle growth and
development in response to exercise training and injury. - correct answer ✔✔SATELITE CELLS
, contains glycogen and myoglobin as well as other organelles such as mitochondria. - correct
answer ✔✔SACROPLASM
is a fine network of tubes that surrounds myofibrils. It stores and releases calcium ions in
response to action potentials - correct answer ✔✔SACROPLASMIC RETICULM
Contractile structures within muscle fibers are called - correct answer ✔✔MYOFIBRILS
is a basic contractile unit of skeletal muscle - correct answer ✔✔SARCOMERE
consists of one α-motor neuron and all the muscle fibers it controls - correct answer
✔✔MOTOR UNIT
What is the name of the communication site between α-motor neuron and skeletal muscle? -
correct answer ✔✔Neuromuscular Junction
Axon terminal releases ___, which is a chemical neurotransmitter that relays signals from
neurons to skeletal muscles. - correct answer ✔✔ACETYLCHOLINE
1. If enough number of ACETYLCHOLINE binds to the ___ on skeletal muscle membrane, AP is
re-generated on skeletal muscle. - correct answer ✔✔ACH
Then, the re-generated AP travels on skeletal muscle membranes and go down to deep inside of
skeletal muscle fibers via openings called ___ - correct answer ✔✔T-TUBULES
Then, AP stimulates ____ to release ___ ions. - correct answer ✔✔SR, Calcium
Those ions then go to myofibrils and bind to ___, which moves ___ aside revealing active sites
on ___ of thin filaments. - correct answer ✔✔Troponin, tropomyosin, actin
answers 100% correct
are associated with bones and voluntary - correct answer ✔✔Skeletal Muscles
are found in hollow organs and involuntary - correct answer ✔✔Smooth Muscles
are found only in the heart and involuntary - correct answer ✔✔Cardiac muscles
They are called muscle fiber because of their shape, it resembles fiber - correct answer ✔✔Why
do you call individual muscle cells "muscle fibers"?
What is the name of the connective tissue that wraps around each muscle fiber and connects
muscle fibers with other muscle fibers? This is where capillaries exist. - correct answer
✔✔Endomysium
What is the name of the connective tissue in muscle where arterioles, venules, and nerve
branches exist? It wraps around each fascicle and connects fascicles with other fascicles. -
correct answer ✔✔Perimysium
What is the name of the connective tissue that surrounds the entire muscle sections? - correct
answer ✔✔Epimysium
are dormant nuclei (not cells) in muscle fibers and responsible for muscle growth and
development in response to exercise training and injury. - correct answer ✔✔SATELITE CELLS
, contains glycogen and myoglobin as well as other organelles such as mitochondria. - correct
answer ✔✔SACROPLASM
is a fine network of tubes that surrounds myofibrils. It stores and releases calcium ions in
response to action potentials - correct answer ✔✔SACROPLASMIC RETICULM
Contractile structures within muscle fibers are called - correct answer ✔✔MYOFIBRILS
is a basic contractile unit of skeletal muscle - correct answer ✔✔SARCOMERE
consists of one α-motor neuron and all the muscle fibers it controls - correct answer
✔✔MOTOR UNIT
What is the name of the communication site between α-motor neuron and skeletal muscle? -
correct answer ✔✔Neuromuscular Junction
Axon terminal releases ___, which is a chemical neurotransmitter that relays signals from
neurons to skeletal muscles. - correct answer ✔✔ACETYLCHOLINE
1. If enough number of ACETYLCHOLINE binds to the ___ on skeletal muscle membrane, AP is
re-generated on skeletal muscle. - correct answer ✔✔ACH
Then, the re-generated AP travels on skeletal muscle membranes and go down to deep inside of
skeletal muscle fibers via openings called ___ - correct answer ✔✔T-TUBULES
Then, AP stimulates ____ to release ___ ions. - correct answer ✔✔SR, Calcium
Those ions then go to myofibrils and bind to ___, which moves ___ aside revealing active sites
on ___ of thin filaments. - correct answer ✔✔Troponin, tropomyosin, actin
