Complete Exam Guide Subject-wise practice platform
Nervous Tissue

Synapses Practice Questions

20 free Synapses practice questions for the Histology, each with the correct answer and a detailed explanation. Open any question below, or take the full set as an interactive quiz.

Start Practice Quiz

Questions

All Synapses questions

20 questions
  1. Q1. In a chemical synapse, which structure is specifically responsible for the storage of neurotransmitters?
  2. Q2. What is the typical width of the synaptic cleft in a standard chemical synapse?
  3. Q3. Which ion influx is directly responsible for triggering the exocytosis of synaptic vesicles?
  4. Q4. An 'axodendritic' synapse occurs between which two neuronal components?
  5. Q5. Histologically, the 'postsynaptic density' (PSD) is best described as:
  6. Q6. Which type of synapse allows for the bidirectional flow of ions and incredibly rapid signal transmission?
  7. Q7. Which protein, found on the vesicle membrane, acts as the primary calcium sensor for fusion?
  8. Q8. SNARE proteins are essential for which stage of synaptic transmission?
  9. Q9. Excitatory synapses (Gray's Type I) are typically characterized by which histological features?
  10. Q10. Inhibitory synapses (Gray's Type II) often exhibit which appearance under electron microscopy?
  11. Q11. What is the function of the enzyme Acetylcholinesterase at the synapse?
  12. Q12. Which of the following describes an 'axosomatic' synapse?
  13. Q13. The 'active zone' of a presynaptic terminal is specifically defined as:
  14. Q14. Dense-core vesicles (large granular vesicles) typically contain:
  15. Q15. What happens to the synaptic vesicle membrane after its contents are released?
  16. Q16. Which type of receptor at a synapse involves a G-protein signaling cascade?
  17. Q17. What is the histological term for the enlarged end of an axon at a synapse?
  18. Q18. The 'synaptic delay' (0.5 to 1.0 ms) is primarily caused by which event?
  19. Q19. Which neuronal region is the most common site for 'axoaxonic' synapses, often serving to regulate neurotransmitter release?
  20. Q20. A 'tripartite synapse' refers to the functional interaction between a presynaptic neuron, a postsynaptic neuron, and which glial cell?