#1
Which part of the neuron receives signals from other neurons?
Dendrite
ExplanationDendrites receive signals and transmit them to the cell body.
#2
What is the function of the myelin sheath?
To speed up the transmission of nerve impulses
ExplanationThe myelin sheath enhances the speed of nerve signal transmission.
#3
Which part of the neuron is responsible for transmitting electrical signals away from the cell body?
Axon
ExplanationThe axon transmits electrical signals away from the cell body.
#4
Which neurotransmitter is commonly associated with pleasure and reward?
Dopamine
ExplanationDopamine is linked to the brain's reward and pleasure centers.
#5
What is the term for the junction between two neurons, where neurotransmitters are released?
Synapse
ExplanationThe synapse is the connection point for communication between neurons.
#6
Which part of the brain is responsible for regulating vital functions such as breathing and heart rate?
Medulla oblongata
ExplanationThe medulla oblongata controls essential autonomic functions.
#7
Which of the following is responsible for coordinating muscle movements and maintaining posture?
Cerebellum
ExplanationThe cerebellum controls coordination and posture.
#8
What is the main function of the frontal lobe of the brain?
Motor control and decision making
ExplanationThe frontal lobe is involved in motor control and decision-making processes.
#9
Which of the following is not a part of the central nervous system (CNS)?
Optic nerves
ExplanationOptic nerves are part of the peripheral nervous system.
#10
Damage to which cranial nerve can result in impaired sense of smell?
Olfactory nerve (I)
ExplanationThe olfactory nerve is responsible for the sense of smell.