Explain labeled line coding and provide a specific example. What exactly is the "label" and the "line" in your example?
What will be an ideal response?
An adequate stimulus is the form of energy to which a receptor is most responsive. A threshold stimulus is the minimum depolarization required to trigger an action potential in a sensory neuron. Perceptual threshold is the minimum stimulus required for a person to be aware that peripheral receptors were stimulated, which can be greater than the threshold stimulus for the sensory neuron.
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One hypothalamic hormone triggers a pituitary hormone to cause release of an adrenal hormone. Fill in the names of the hormones below. If a tumor in the adrenal cortex resulted in hypercortisolism, how would this affect the relative levels of hormone produced from each source? What type of reflex pathway is involved?
Ventricular ejection occurs once the afteroad has been overcome
Indicate whether the statement is true or false
Atropine is sometimes used to dilate the pupil for an eye examination. Which receptor would atropine block?
A. Nicotinic receptor B. Beta receptor C. Alpha 1 adrenergic receptor D. Alpha 2 adrenergic receptor E. Muscarinic receptor
When multiple presynaptic neurons release neurotransmitter at various locations onto the postsynaptic neuron at the same time, this results in
A. suprathreshold hyperpolarization. B. several action potentials. C. spatial summation. D. temporal summation.