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Terms in this set (97)
Muscle tissue, one of the four Contraction
basic tissue groups, consists
chiefly of cells that are highly
specialized for
Which of the following is All answers are correct
recognized function of skeletal
muscle
The dense layer of connective epimysium
tissue that surrounds an entire
skeletal muscle is the
The bundle of collagen fibers at Tendon
the end of a skeletal muscle that
attaches the muscle to bone is
Put the following structures in 6,2,4,5,1,3
order from superficial to deep
1. Muscle fiber
2. perimysium
3. myofibril
4. fascicle
5. endomysium
6. epimysium
Interactions between actin and Muscle contraction
myosin filaments of the
sarcomere are responsible for
The repeating unit of a skeletal myofibril
muscle fiber is the
Muscle fibers differ from typical Have a nuclei
cells in that muscle fibers
Which of the following best Storage and release site for calcium ions
describes the term sarcoplasmic
reticulum
The region of the sarcomere A Band
containing the thick filaments is
the
The skeletal muscle complex A transverse tubule and two terminal cisternae
known as the triad consists of
, The region of the sarcomere I Band
that always contain thin
filaments is the
The rest, active sites on the tropomyosin molecules
action are blocked by
In response to action potentials Calcium ions
arriving along the transverse
tubule, the sarcoplasmic
reticulum releases
Each skeletal muscle fiber is Neuromuscular junction
controlled by a motor neuron at
a single
The narrow space between the M Line
synaptic terminal and the muscle
fiber is the
Active sit3es on the actin Calcium binds to troponin
become available for binding
after
When calcium ion binds to Tropomyosin rolls away from the active site
troponin
After death, muscle fibers run rigor mortis
out of ATP and calcium begins
to leak from the sarcoplasmic
reticulum into the sarcoplasm.
This result in a condition known
as
Triggering of the muscle action Acetylcholine binds to chemically-gated channels in the motor
potential occurs after end plate
A patient takes a medication that Reduces the muscle's ability for contraction
blocks ACh receptors of skeletal
muscle fibers. What is this drug's
effect on skeletal muscle
contraction
The rapid rise and fall in force twitch
produced by a muscle fiber
after a single action potential is
a(n)
When a muscle is stimulated Complete tetanus
repeatedly at a high rate, the
amount of tension gradually
increases to a steady maximum
tension. This state of maximum
tension is called
A muscle producing almost Incomplete tetanus
peak tension during rapid cycles
of contraction and relaxation is
said to be in
The type of contraction in which isometric
the muscle fibers do not shorten
is called
Treppe
What the contraction in graph
(a) called