Question 1

For accurate synaptogenesis, which of the following does NOT have to occur?

Accepted Answer

A)  exchange of signals between pre- and postsynaptic neurons 
B)  firing of action potentials in the postsynaptic neuron 
C)  presynaptic axons being guided to the correct target 
D)  retraction of some synapses

Question 2

Huntington's disease ______.

Accepted Answer

A)  is a monogenetic condition 
B)  occurs following exposure of an individual to environmental heavy metals 
C)  produces different symptoms in different people due to the random loss of neurons 
D)  results in death of neurons throughout the brain by necrosis

Question 3

Which of the following statements about Parkinson's disease is correct?

Accepted Answer

A)  Environmental factors impact on the likelihood of someone developing the disease. 
B)  It is a monogenetic condition. 
C)  It results in the mass death of neurons by necrosis. 
D)  The primary pathological feature is loss of synapses in the cortex.

Question 4

Which of the following statements about the fully-formed brain is correct?

Accepted Answer

A)  All neurons that are born during development can be found in the brain of a newborn. 
B)  Axons that were unable to locate the correct target cells can induce changes in the gene expression of their parent neuron. 
C)  Synapse formation can be influenced by the individual's experience in their early years. 
D)  Synapse formation is complete by the late teenage years.

Question 5

Which of the following statements about the process of neurulation is correct?

Accepted Answer

A)  All the cells involved express the same genes. 
B)  Any error in this process is incompatible with life. 
C)  It is complete by about 4 weeks after fertilisation of the egg. 
D)  It is only involved in formation of the spinal cord.

Exam 3: Development, Degeneration and Recovery of the Nervous System

For accurate synaptogenesis, which of the following does NOT have to occur?

Huntington's disease ______.

Which of the following statements about Parkinson's disease is correct?

Which of the following statements about the fully-formed brain is correct?

Which of the following statements about the process of neurulation is correct?