The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, ple

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Question

The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are:

Accepted Answer

Correct Answer: D — Limbic system & hypothalamusStep-by-step Solution:Emotional behaviour, sexual behaviour, and motivation are regulated by the limbic system and the hypothalamus, both of which are phylogenetically ancient parts of the forebrain.The limbic system (also called the 'emotional brain' or 'visceral brain') is a ring-shaped system of interconnected cortical and subcortical structures including the amygdala (fear, aggression, emotional memory), hippocampus (memory formation, spatial navigation), cingulate gyrus, septal nuclei, and parts of the thalamus and hypothalamus. The amygdala in particular is critical for processing and expressing emotions like fear, rage, pleasure, and sexual arousal.The hypothalamus (part of the diencephalon) is the master regulator of homeostasis and has specific centres for: sexual behaviour and reproduction (regulated by GnRH), emotional responses (interacts with the amygdala), pleasure and reward (via connections with nucleus accumbens), hunger, thirst, thermoregulation, and circadian rhythms.Why other options are incorrect: Corpora quadrigemina (A) — four rounded eminences on the dorsal midbrain; superior colliculi are involved in visual reflexes, inferior colliculi in auditory reflexes — not emotions. Hippocampus is part of the limbic system but the paired 'corpora quadrigemina + hippocampus' is not the standard description for emotion regulation. Brain stem (B) controls basic vegetative functions (breathing, heart rate, swallowing). Epithalamus contains the pineal gland (melatonin, circadian rhythms) — not primarily for emotional regulation. Corpus callosum (C) is the large band of white matter connecting the two cerebral hemispheres — it is a communication pathway, not an emotional regulation centre. Thalamus relays sensory information to the cortex — while it has connections to the limbic system, it alone does not regulate emotions.Key Concepts:Limbic system: Amygdala (fear, rage, emotional memory), hippocampus (memory), cingulate gyrus, septal nuclei — collectively regulate emotion, behaviour, and memory.Hypothalamus: Regulates hunger, thirst, body temperature, circadian rhythm, sexual behaviour, autonomic nervous system, and pituitary gland (via releasing/inhibiting hormones).

The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are:

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The parts of human brain that helps in regulation of sexual behaviour, expression of excitement, pleasure, rage, fear etc. are:

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