Excitation
initiates the release of calcium
The action potential
Peels away tropomyosin to reveal the actin binding sites.
troponin
The neurotransmitter at the neuromuscular junction is _____.
Ach (Acetylcholine)
The sarcomere
Each muscle fiber is innervated ____ times.
1
Allows the action potential to travel deep into the muscle.
T-tubule
These 2 things cover binding sites
Troponin and tropmyosin
The opening of K+ channels would cause a membrane to become
hyperpolorized
Dense irregular connective tissue sheath that bundles the fassicals
epimysium
Type that has a lot of myoglobin
oxidative muscle
Where calcium is stored
Sarcoplasmic riticulum
What shortens during a contraction
sarcomere
The opening of voltage-gated calcium channels causes vesicles to release ____ in the neuromuscular junction.
Ach (Acetylcholine)
Each fassical is surounded by
perimysium
Motor units are recruited from ____ to _____ size.
small to large
Caclium will bind to _____ to allow the process of contraction to occur
troponin
Each myosin head has a site for binding to _____
Actin
Type of channel that opens when there is a change in charges.
Voltage-gated channel
Myofibers are surrounded by a sheath of reticular connective tissue called
endomysium
Generates 2 atp for every molecule of glucose, no oxygen is involved.
glycolosis
The neuromuscular junction is also known as ____ and ______.
Motor end plate and neuromuscular synapse
A sustained muscle contraction when action potentials come in at a high rate.
Tatanus
Acetylcholine will bind to _____ channels to cause sodium to flood into the muscle cell
Ligand-gated sodium channels
The thin myofilliment is called ____ and the thick myfilliment is called _____.
Actin, myosin
large diameter, low number of capillaries
glycolytic muscle