Questions & Answers
Browse all 20 questions from the
Biological Foundations of Mental Health study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which neurotransmitter is primarily associated with the regulation of mood, sleep, and appetite?
-
A
Acetylcholine
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B
Serotonin
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C
Epinephrine
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D
Glutamate
2
The HPA axis, a complex set of direct influences and feedback interactions among three endocrine glands, stands for which of the following?
-
A
Hypothalamus-Pituitary-Adrenal
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B
Hippocampus-Pineal-Aorta
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C
Hypothalamus-Pineal-Amygdala
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D
Heart-Pancreas-Adrenal
3
Which brain structure is primarily responsible for the processing of fear and emotional responses?
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A
Cerebellum
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B
Amygdala
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C
Thalamus
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D
Occipital lobe
4
What is the primary role of cortisol in the human body regarding stress?
-
A
To promote serotonin production
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B
To increase blood glucose levels for energy
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C
To inhibit insulin release in all cases
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D
To lower heart rate during exercise
5
Neuroplasticity, a key concept in mental health, refers to what?
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A
The hardening of brain tissue with age
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B
The ability of the brain to form new neural connections
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C
The speed at which electrical signals travel
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D
The process of neurotransmitter reuptake
6
Chronic stress is known to cause a decrease in the volume of which brain area involved in memory and learning?
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A
Hippocampus
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B
Brain stem
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C
Corpus callosum
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D
Pons
7
Which hormone is commonly referred to as the 'bonding hormone' and is involved in social recognition and trust?
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A
Thyroxine
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B
Oxytocin
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C
Melatonin
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D
Adrenaline
8
The prefrontal cortex is most associated with which of the following functions?
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A
Basic motor skills
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B
Executive function and decision-making
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C
Visual perception
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D
Regulation of body temperature
9
Deficiency in which vitamin is frequently linked to depressive symptoms and cognitive decline?
-
A
Vitamin C
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B
Vitamin D
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C
Vitamin K
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D
Vitamin A
10
What does the term 'neurogenesis' refer to in the context of the adult human brain?
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A
The death of neurons
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B
The growth and development of new neurons
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C
The repair of damaged myelin sheaths
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D
The chemical transmission between synapses
11
Which part of the autonomic nervous system is responsible for the 'rest and digest' response?
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A
Sympathetic nervous system
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B
Parasympathetic nervous system
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C
Enteric nervous system
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D
Central nervous system
12
The 'gut-brain axis' refers to the two-way communication between the central nervous system and which organ system?
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A
Enteric nervous system
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B
Respiratory system
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C
Endocrine system
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D
Lymphatic system
13
Dopamine is a neurotransmitter primarily involved in which brain pathway?
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A
The pain reflex pathway
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B
The reward and motivation system
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C
The visual processing system
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D
The tactile sensory system
14
Which sleep stage is most critical for emotional regulation and memory consolidation?
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A
Stage 1 (NREM)
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B
Stage 2 (NREM)
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C
Deep Sleep (Slow-wave sleep)
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D
REM Sleep
15
What is the function of the blood-brain barrier?
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A
To transport oxygen to the brain
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B
To protect the brain from pathogens and toxins
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C
To regulate neurotransmitter production
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D
To filter waste from spinal fluid
16
Which condition is characterized by an overactive sympathetic nervous system response to perceived threats?
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A
Anxiety disorders
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B
Narcolepsy
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C
Aphasia
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D
Ataxia
17
The term 'myelination' in brain health refers to:
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A
The formation of fatty sheaths around axons to speed up electrical impulses
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B
The destruction of synapses
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C
The production of new glial cells
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D
The movement of ions across the membrane
18
Chronic inflammation in the body has been scientifically linked to the increased risk of:
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A
Hyperthyroidism
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B
Clinical depression
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C
Myopia
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D
Scoliosis
19
What is the primary role of GABA in the central nervous system?
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A
To act as the main excitatory neurotransmitter
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B
To act as the main inhibitory neurotransmitter
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C
To increase heart rate
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D
To initiate muscle contraction
20
The thalamus functions primarily as:
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A
The brain's relay station for sensory information
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B
The control center for hormonal balance
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C
The area responsible for long-term memory storage
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D
The center for balance and coordination
