Stimulation of the posterior hypothalamus causes: a) decrease heart rate, b) decrease blood pressure, c) increase blood pressure, d) pupillary constriction.

Understand the Problem

The question is asking about the physiological effects of stimulating the posterior hypothalamus, specifically regarding changes in heart rate, blood pressure, and other bodily functions.

More Information

The posterior hypothalamus is associated with sympathetic nervous system activation, which includes increasing heart rate and blood pressure.

Tips

A common mistake is assuming the posterior hypothalamus only manages one specific function, rather than multiple autonomic responses.

Sources

• Posterior Hypothalamus - an overview | ScienceDirect Topics - sciencedirect.com
• Autonomic and endocrine control of cardiovascular function - PMC - pmc.ncbi.nlm.nih.gov