Light Entrainment Pathways — MCQs

The parvocellular pathway from lateral geniculate nucleus to visual cortex is most sensitive for the stimulus of

All the following mediate their action using cAMP as second messenger except:

Hormonal secretions are tightly controlled by the time of day due to an inbuilt biological clock in human body. This rhythmic secretion is controlled by:

Which substance is most likely to increase in the rods of the retina when the light is turned on?

Melatonin is produced in all of the following, except?

Which factor best predicts response to light therapy in SAD?

Which of the following events does NOT occur in rods in response to light

Thyroid hormone binds to which receptor ?

Which hormone(s) exhibit(s) increased production during the day and decreased production at night?

Diurnal variation in eosinophil count is related to: