Describe a feedback system and list its general components
What will be an ideal response?
A feedback loop is a cycle of events in which the status of the body condition is monitored, evaluated and changed to maintain homeostasis. A feedback system will include a receptor that detects the stimuli, a control center that receives the input from the receptor and generates an output, and an effector that receives the output and produces a response.
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Energy released from an exergonic reaction is stored in the form of ______
Fill in the blank(s) with the appropriate word(s).
In PNS nerve fiber regeneration, how is a growing axon directed to its original destination?
A. The axon grows a collateral that is directed by growth factors secreted by the postsynaptic neuron. B. The axonal terminals grow towards the neurosoma until the two severed fragments are reunited. C. It grows within a regeneration tube. D. Injured Schwann cells produce a trail of prostaglandins to the original destination.
The BEST way to be certain that the ET tube has passed through the vocal cords is to:
A) feel the ridges of the tracheal wall with the ET tube. B) visualize the tube passing between the vocal cords. C) note the appropriate color change of the capnographer. D) ensure the presence of bilaterally equal breath sounds.
Polar molecules, like water, result when electrons are shared ________
A) unequally between atoms B) between ions C) equally between atoms D) or transferred between atoms