Question

When we are talking about the stress response, the primary goal of ____________ is to make as much energy available as possible for immediate use. We need to be able to react to various stimuli in our environment, including things that are not directly in front of us. With regards to our visual system, the “center surround” structure of ganglion cell receptive fields helps us understand where things are in space. If an “off-center, on-surround” ganglion cell is being activated, then that cell must be firing in response to something we see ___________. If there is something in your environment that could be a threat to you (e.g. a lion), norepinephrine is released by postganglionic neurons of the _________ division of the autonomic nervous system to accelerate activity of target organs (e.g. increase heart rate).

Group of answer choices

Acetylcholine; directly in front of us; parasympathetic

Acetylcholine; in our periphery; parasympathetic

Glucocorticoids; directly in front of us; sympathetic

Glucocorticoids; in our periphery; sympathetic

Answer 1

Glucocorticoids, in our periphery; sympathetic.

In a on centre cell, the light stimuli excits the cell, causing depolarization. The light on the surround cell inhibits hyper-polarization.

Norepinephrine is released from the sympathetic division of nervous system by postgaglionic neurons. It is released for the flight-fight response.