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Muscle Contraction and Nervous System
Functions
Sarcomere - Answers✓✓Smallest functional unit of muscle contraction.
Sarcoplasmic reticulum - Answers✓✓Stores calcium ions in muscle cells.
Acetylcholinesterase - Answers✓✓Enzyme that breaks down acetylcholine.
Masseter - Answers✓✓Strongest muscle in the human body.
Muscle tone - Answers✓✓Partial, sustained contraction of muscle fibers.
Calcium channel blockage - Answers✓✓Decreases acetylcholine release at synapse.
Isometric contraction - Answers✓✓Muscle contracts without changing length.
Cardiac muscle - Answers✓✓Muscle type with intercalated discs.
Smooth muscle - Answers✓✓Lines organs and blood vessels.
Synaptic cleft - Answers✓✓Site where neurotransmitters are released.
Calcium ions - Answers✓✓Trigger neurotransmitter release at synaptic terminal.
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21/12/2024 11:21AM
Absolute refractory period - Answers✓✓No action potential can be generated.
Sympathetic nervous system - Answers✓✓Controls 'fight or flight' responses.
Dendrite - Answers✓✓Portion of neuron that receives signals.
Oligodendrocyte - Answers✓✓Glial cell that forms myelin in CNS.
Bipolar neuron - Answers✓✓Neuron with one axon and one dendrite.
Resting membrane potential - Answers✓✓Inside of neuron is negatively charged.
Action potential - Answers✓✓Sodium ions flow into the neuron.
Intraocular pressure - Answers✓✓Maintained by fluid in anterior eye cavity.
Myofibril - Answers✓✓Contractile element within muscle fibers.
Glycogen storage - Answers✓✓Not a primary function of sarcoplasmic reticulum.
Electrical impulse transmission - Answers✓✓Not a function of sarcoplasmic reticulum.
Vitreous humor - Answers✓✓Gel-like substance filling the eye's interior.