#1
Which part of the nervous system is responsible for involuntary reflexes?
Autonomic nervous system
ExplanationControls involuntary actions.
#2
What is the function of a reflex arc?
To produce rapid, automatic responses to stimuli
ExplanationGenerates fast, involuntary reactions.
#3
Which part of the nervous system is responsible for voluntary movements?
Somatic nervous system
ExplanationControls voluntary actions.
#4
What is the primary neurotransmitter released at the neuromuscular junction?
Acetylcholine
ExplanationPrimary chemical for muscle activation.
#5
Which neurotransmitter is commonly associated with the activation of skeletal muscles?
Acetylcholine
ExplanationPrimary chemical messenger for muscle activation.
#6
What is the primary role of the cerebellum in reflexes and motor control?
Processing sensory information and coordinating movement
ExplanationHandles sensory data and movement coordination.
#7
What is the function of a monosynaptic reflex?
It involves a single neuron and a single synapse.
ExplanationUtilizes one neuron and one synapse.
#8
Which part of the brainstem is primarily involved in regulating respiratory reflexes?
Medulla oblongata
ExplanationMain regulator of breathing reflexes.
#9
Which type of reflex is responsible for maintaining posture and balance?
Stretch reflex
ExplanationMaintains body stability.
#10
Which part of the brain is primarily involved in coordinating voluntary movements?
Cerebellum
ExplanationCoordinates voluntary actions.
#11
Which brain region plays a crucial role in modulating pain perception and reflexes?
Thalamus
ExplanationCentral for pain modulation and reflexes.
#12
In the context of reflexes, what is habituation?
The gradual decrease in the intensity or occurrence of a reflex response
ExplanationReduction in reflex strength over time.
#13
Which type of reflex involves a polysynaptic pathway?
Withdrawal reflex
ExplanationRequires multiple neurons and synapses.
#14
What is the primary neurotransmitter involved in the regulation of autonomic reflexes?
Norepinephrine
ExplanationKey chemical for autonomic regulation.
#15
What is the role of the basal ganglia in reflexes and motor control?
Coordinating smooth movements and facilitating voluntary motor control
ExplanationEnsures smooth, voluntary motion.
#16
Which type of reflex is responsible for the coordinated movement of both eyes?
Convergence reflex
ExplanationCoordinates eye movements.