Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Muscle Stack
| Question | Answer |
|---|---|
| Ability to Shorten | Contractility |
| Respond to Stimulus | Excitability |
| To be strectched | Extensibility |
| Recoil to original Resting length | Elasticity |
| Surrounds Skeletal Muscle by a connective tissue seath | Epimysium |
| outside the Epimysium | Fascia |
| Muscle Fasciculi surrounded by loose connective tissue | Perimysium |
| Each fiber surrounded by a connective tissue seath | Endomysium |
| 2 myofibrils | Actin, Myosin |
| Thin Myofilament | Actin |
| Thick Myofilament | Myosin |
| Formed highly ordered units | Sacromeres |
| Light Band | Z bands |
| Dark bands | A bands |
| Where are the myosin filaments anchored. | M line |
| Charge difference across the membrane | Resting Membrane potential |
| Brief reversal back of the charge | Action Potential |
| Nerve cells that carry action potentials to the skeletal muscle fibers | Motor Nuerons |
| Each branch that connects to the muscle cells form what? | Nueromuscular Junction or Synapse |
| single motor neuron and all its skeletal fibers it innervates | Motor Unit |
| in the center of the sacromere is located | The H-Band |
| The H band is made of | Myosin |
| Enlarged Nerve Terminal | Presynaptic Terminal |
| Space between the presynaptic terminal and the muscle cell | Synaptic Cleft |
| The space between the presynaptic terminal and the muscle fiber | Post-synaptic Terminal |
| Each presynaptic terminal contains | synaptic vesicles |
| Secretes the nuerotransmitter | Aceytlcholine |
| Enzymes | aceytlcholinesterase |
| Occurs as actin and myosin myofilaments slide past one another causing the sacromeres to shorten | Muscle Contraction |
| occurs during contraction | Sliding filament mechanism |
| Contraction of an entire muscle in response to stimulus that causes the action potential in one or more fibers | muscle twitch |
| Muscle fiber wont respond to stimulus until it reaches what? | Threshold |
| Phenomenon | All or none response |
| time between application of a stimulus to a motor neuron | lag phase |
| time of contraction | contraction phase |
| time during which the muscle relaxes | relaxation phase |
| remain contracted without shortening | tetany |
| increase in number of motor units being used | recruitment |
| energy needed for muscle contraction | ATP |
| produced in the Mitochondria | ATP |
| shortlived and unstable | ATP |
| What ATP becomes when stablized | ADP |
| When ATP is used more than what is produced | Muscle Fatigue |
| amount of tension increases in muscles | Isometric |
| length of muscle changes | Isotonic |
| Stationary end of the muscle | Head |
| Contract and fatigue quickly | Fast Twitch |
| Contract and fatigue slowly | slow twitch |
| end of the muscle undergoing the most movement | insertion |
| between origin and insertion | belly |
Created by:
jpcurnutte12
Popular Science sets