medium · MCAT bio-biochem
A graduate student experiencing chronic stress over a six-month period enters a phase characterized by the depletion of physiological resources and a significantly weakened immune system.
According to Selye's General Adaptation Syndrome, what stage is this student in, and what is the primary neuroendocrine driver of the subsequent hippocampal atrophy and memory deficits?
- Exhaustion stage; over-activation of the parasympathetic rebound
- Exhaustion stage; prolonged exposure to high cortisol levels
- Resistance stage; increased catecholamine release from the adrenal medulla
- Alarm stage; activation of the hypothalamic-pituitary-adrenal (HPA) axis
Sign up free to see the explanation and track your rank →
More MCAT bio-biochem practice
- In the human ear, sound waves cause fluid in the cochlea to… — Which cells are responsible
- An electrophysiologist observes a neuron at its resting memb… — Which ion is primarily res
- Which organelle would you expect to be exceptionally well-developed in these cells?
- What genetic term describes a single gene influencing multiple seemingly unrelated traits?
- Which structure is most likely dysfunctional?
- A researcher discovers that a population of bacteria survives exposure to an antibiotic be
- A patient is admitted to the emergency department with a sev… — How does this patient's O_
- Which molecule acts as a 'fluidity buffer' in animal cell membranes?