Free Brain MCQs with Answers
91 Brain MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
The brain includes the cerebrum, cerebellum, brainstem, hypothalamus and medulla, each with distinct roles in sensation, movement and homeostasis. Questions connect major brain regions with their functions, reflex control and coordination, while distinguishing involuntary responses from hormonal regulation.
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- A. cerebellum
- B. cerebrum
- C. medulla oblongata
- D. hypothalamus
Explanation: The cerebrum is the largest part of the human brain, and its folded cortex carries the sensory, motor and association areas responsible…
Correct answer: cerebrum- A. loss of memory
- B. failure of breathing
- C. loss of balance and jerky, poorly coordinated movement
- D. inability to see
Explanation: The cerebellum receives information from the muscles, joints and balance organs of the ear and smooths the commands sent by the cerebrum…
Correct answer: loss of balance and jerky, poorly coordinated movement- A. cerebrum
- B. cerebellum
- C. corpus callosum
- D. medulla oblongata
Explanation: The medulla lies at the top of the spinal cord and contains the cardiac, respiratory and vasomotor centres, all of which work without…
Correct answer: medulla oblongata- A. hypothalamus
- B. cerebellum
- C. medulla oblongata
- D. occipital lobe
Explanation: The hypothalamus is the meeting point of the nervous and endocrine systems: it monitors the temperature and water potential of the blood…
Correct answer: hypothalamus- A. Memory
- B. Balance and coordination
- C. Heart rate
- D. Vision
Explanation: The cerebellum coordinates voluntary movements, balance, posture, and motor learning.
Correct answer: Balance and coordination- A. Medulla oblongata
- B. Cerebellum
- C. Cerebrum
- D. Pons
Explanation: The pons contains the centres that switch the brain between sleep and wakefulness and it also regulates the rhythm of breathing alongside…
Correct answer: Pons- A. Pons
- B. Midbrain
- C. Hypothalamus
- D. Medulla oblongata
Explanation: The respiratory centre of the medulla carries chemoreceptors that detect the fall in pH caused by rising carbon dioxide and increase the…
Correct answer: Medulla oblongata- A. Forebrain
- B. Cerebellum
- C. Midbrain
- D. Cerebellum
Explanation: The midbrain carries four swellings, the corpora quadrigemina, of which the upper pair handle visual reflexes such as turning the eyes and…
Correct answer: Midbrain- A. Formation of short-term memory
- B. Formation of image on retina
- C. Formation of long-term memory
- D. Formation of emotions
Explanation: The hippocampus consolidates experiences into long term memory, which is why damage to it leaves a patient able to hold a conversation yet…
Correct answer: Formation of long-term memory- A. Corpus luteum
- B. Corpus callosum
- C. A band of dendrites
- D. Dorsal and ventral nerve roots
Explanation: The corpus callosum is a thick band of myelinated axons carrying traffic between the two hemispheres so that they work as one.
Correct answer: Corpus callosum- A. Cerebrum
- B. Cerebellum
- C. Hypothalamus
- D. Medulla oblongata
Explanation: The cerebellum receives information from muscles, joints and the balance organs of the inner ear and smooths the commands issued by the…
Correct answer: Cerebellum- A. Brain stem
- B. Brain base
- C. Brain root
- D. None of These
Explanation: The medulla oblongata and pons are parts of the hindbrain and together form major components of the brainstem, which connects the brain…
Correct answer: Brain stem13. Which is important for screening the input information, before they reach the higher brain centers?
- A. Pons
- B. Cranium
- C. Reticular formation
- D. Amygdala
Explanation: The reticular formation receives and filters incoming sensory information, helping determine which signals are important enough to reach…
Correct answer: Reticular formation- A. Cerebrum
- B. Cerebellum
- C. Thalamus
- D. Hypothalamus
Explanation: The cerebellum coordinates muscle activity, balance and timing, allowing movements to be smooth and precise.
Correct answer: Cerebellum- A. A disorder of speech
- B. A disorder of hearing
- C. A disorder of learning
- D. None of the above
Explanation: Lalopathy refers to a disorder affecting speech or the ability to produce speech.
Correct answer: A disorder of speech- A. The left parietal lobe
- B. cerebrum
- C. The right parietal lobe
- D. Mid brain
Explanation: Mathematical processing, especially calculation and numerical reasoning, is strongly associated with areas of the left parietal lobe.
Correct answer: The left parietal lobe- A. Spinal cord
- B. Cerebrum
- C. Cerebellum
- D. Medulla Oblongata
Explanation: The medulla oblongata contains centres that regulate involuntary activities such as breathing, heart rate, and blood pressure, thereby…
Correct answer: Medulla Oblongata- A. Corpus callosum
- B. Medulla oblongata
- C. Cerebral cortex
- D. Cerebellum
Explanation: The corpus callosum is a broad band of nerve fibres that carries information between the left and right cerebral hemispheres.
Correct answer: Corpus callosum- A. Cerebrum
- B. Cerebellum
- C. Thalamus
- D. Hypothalamus
Explanation: The cerebrum controls higher mental functions such as intelligence, memory, learning, reasoning and conscious thought through its cerebral…
Correct answer: Cerebrum- A. Cerebrum
- B. Cerebellum
- C. Thalamus
- D. Hypothalamus
Explanation: The cerebellum is the second largest part of the human brain after the cerebrum and coordinates balance, posture and precise muscular…
Correct answer: CerebellumBrain MCQs: common questions
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