For a neuron to stimulate a skeletal muscle cell, first a(n) _________________ must run down the axon of the neuron.
What is action potential
A series of sarcomeres create this long filament found in muscle cells.
What is a myofibril?
Are skeletal muscles voluntary or involuntary?
Skeletal muscles are largely voluntary muscles.
Are smooth muscles voluntary or involuntary?
Smooth muscles are involuntary.
Is the cardiac muscle voluntary or involuntary?
The cardiac muscle is involuntary.
Synaptic vesicles release this/these into the synapse in order to stimulate a skeletal muscle cell.
What is neurotransmitters (also can accept acetylcholine)
The motion of thin filaments over thick filaments is represented by this.
What is the Sliding Filament Mechanism?
Skeletal muscle is stimulated by this nervous system
What is somatic nervous system?
Smooth muscle is stimulated by this nervous system
What is autonomic nervous system?
This nervous system stimulates cardiac muscle.
What is autonomic nervous system?
Neurotransmitters land on this part of the sarcolemma of a skeletal muscle cell.
What is a motor end plate?
This filaments are largely this protein __________, while thick filaments are largely this protein_________.
What are thin filaments are largely actin and thick filaments are largely myosin.
Why is the word "skeletal" used in describing skeletal muscle?
What is because it is most often attached to the skeleton of the body?
This is where smooth muscle is found.
What is hollow organs and blood vessels?
Where is cardiac muscle tissue found
What is it makes up the walls of the heart?
After neurotransmitters land on a skeletal muscle cell, an electrical impulse (or action potential) runs down the length of these tubes.
What are T tubules?
If calcium is not present in the myofibrils, then this specifically cannot happen.
What is myosin heads cannot attach to the thin filaments.
True or False: a skeletal muscle cell is multi-nucleated
What is true?
True or False: A smooth muscle cell is multi-nucleated
What is false?
True or false: A cardiac muscle cell is multi-nucleated
What is false
What is SR or Sarcoplasmic Reticulum?
When thin filaments are moved, they are done so toward this center line and they are dragging these lines being them.
What is they are moving towards the M line of the sarcomere and they are dragging the Z lines (or Z discs) behind them?
True or False: Adult skeletal muscle cells cannot undergo meiosis
What is true?
True or False: Because smooth muscle cells lack a striated appearance, this means they lack contractile proteins
What is false?
These are structures that join adjacent cardiac muscle cells and allow for rapid transport of calcium ions
What are intercalated discs?