📘 Topic: Biological Bases of Behavior
Q1. Which part of the neuron receives incoming messages?
A. Axon
B. Myelin sheath
C. Dendrite
D. Synapse
✅ Answer: C. Dendrite
Rationale: Dendrites are tree-like structures that receive signals from other neurons.
Q2. The brain and spinal cord make up the:
A. Peripheral nervous system
B. Somatic nervous system
C. Central nervous system
D. Autonomic nervous system
✅ Answer: C. Central nervous system
Rationale: The CNS includes the brain and spinal cord, responsible for processing information.
Q3. Which neurotransmitter is primarily involved in muscle movement and memory?
A. Serotonin
B. Acetylcholine
C. Dopamine
D. GABA
✅ Answer: B. Acetylcholine
Rationale: Acetylcholine helps control muscle contractions and is key in memory formation.
Q4. The gap between two neurons is called the:
A. Node of Ranvier
B. Axon terminal
C. Receptor site
D. Synapse
✅ Answer: D. Synapse
Rationale: The synapse is the space between the sending neuron's axon and the receiving dendrite.
Q5. Damage to which brain structure is most likely to result in problems with balance
and coordination?
A. Hippocampus
B. Cerebellum
C. Thalamus
D. Amygdala
✅ Answer: B. Cerebellum
Rationale: The cerebellum regulates voluntary movement, coordination, and balance.