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NEET Questions / Zoology / Neural Control And Coordination / Human Neural System
A patient presents with impaired coordination of voluntary movements, slurred speech, and difficulty maintaining balance. Damage to which specific brain region is MOST likely responsible for these symptoms?
Cerebrum
Medulla Oblongata
Cerebellum
Hypothalamus
During a stressful situation, a person experiences increased heart rate, rapid breathing, and dilated pupils. Which neurotransmitter is PRIMARILY responsible for mediating these physiological responses?
Acetylcholine
Dopamine
Serotonin
Norepinephrine
A lesion in the Broca's area of the brain would MOST likely result in which of the following deficits?
Loss of sensory perception
Impaired comprehension of language
Difficulty in speech production
Inability to recognize faces
Which of the following is NOT a function of the limbic system?
Regulation of emotions
Formation of memories
Motivation and reward
Regulation of body temperature
The resting membrane potential of a neuron is primarily maintained by the activity of which membrane proteins?
Voltage-gated sodium channels
Voltage-gated potassium channels
Sodium-potassium pumps
Ligand-gated chloride channels
A demyelinating disease, such as multiple sclerosis, primarily affects which component of the nervous system and impairs what function?
Synaptic cleft; neurotransmitter release
Neuron cell body; protein synthesis
Myelin sheath; nerve impulse conduction
Dendrites; signal reception
Which neurotransmitter is primarily associated with Parkinson's disease?
Acetylcholine
Dopamine
Serotonin
GABA
Which part of the nervous system controls involuntary actions like heart rate and digestion?
Somatic nervous system
Autonomic nervous system
Central nervous system
Peripheral nervous system
Which part of the brain is responsible for maintaining posture and balance?
Cerebrum
Medulla
Cerebellum
Thalamus
The gap between two adjacent neurons is called:
Synapse
Axon
Dendrite
Node of Ranvier