Neuroanatomy Exam: MCQ Trivia Quiz!

23 Questions | By Podstudent | Last updated: Sep 8, 2020 | Total Attempts: 4265

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1.

Components of the central nervous system include all of the following except the:
- A.
  
  Cerebellum
- B.
  
  Spinal cord
- C.
  
  Spinal nerves
- D.
  
  Diencephalon.
2.

The term “rostral” means:
- A.
  
  Towards the tail
- B.
  
  Towards the nose
- C.
  
  Towards the dorsal aspect of the body
- D.
  
  Towards the ventral aspect of the body
3.

The brainstem includes all of the following except the:
- A.
  
  Cerebellum
- B.
  
  Midbrain
- C.
  
  Pons
- D.
  
  Medulla
4.

The white matter of the spinal cord is divided into three general regions known as anterior, posterior, and lateral:
- A.
  
  Horns
- B.
  
  Lemnisci
- C.
  
  Commissures
- D.
  
  Funiculi
5.

Which sulcus separates the pons from the midbrain?
- A.
  
  Central Sulcus
- B.
  
  Superior Pontine Sulcus
- C.
  
  Lateral Sulcus
- D.
  
  Inferior Pontine Sulcus
6.

The roof of the fourth ventricle is formed by the:
- A.
  
  Corpus Callosum
- B.
  
  Thalamus
- C.
  
  Cerebellum
- D.
  
  Tectum
7.

The trigeminal nerve arises from the brain at the level of the:
- A.
  
  Medulla
- B.
  
  Pons
- C.
  
  Midbrain
- D.
  
  Diencephalon
8.

The portion of the ventricular system that is located within the midbrain is the:
- A.
  
  Lateral Ventricle
- B.
  
  Third Ventricle
- C.
  
  Cerebral Aqueduct
- D.
  
  Fourth Ventricle
9.

The mammillary bodies are part of the:
- A.
  
  Medulla
- B.
  
  Pons
- C.
  
  Midbrain
- D.
  
  Diencephalon
10.

All of the following arteries are branches of the basilar artery except the:
- A.
  
  Pontine Arteries
- B.
  
  Middle Cerebral Artery
- C.
  
  Posterior Cerebral Artery
- D.
  
  Superior Cerebellar Artery
11.

In early embryogenesis, the notochord develops in the midline from the:
- A.
  
  Floorplate
- B.
  
  Mesoderm
- C.
  
  Neural Tube
- D.
  
  Ectoderm
12.

The secondary embryonic brain vesicle that gives rise to the pons and cerebellum is the:
- A.
  
  Telencephalon
- B.
  
  Mesencephalon
- C.
  
  Metencephalon
- D.
  
  Myelencephalon
13.

Which statement about the early precursor cells of the neural tube is incorrect?
- A.
  
  The cells form a pseudostratified columnar epithelium.
- B.
  
  The cells extend between the pia and the lumen of the neural tube.
- C.
  
  The cells lose contact with the pial surface during mitosis.
- D.
  
  The cell nuclei move closest to the lumen of the neural tube during the period of DNA replication (S phase).
14.

Inductive signals, generated by the activity of specific genes, are responsible for the differentiation of all of the following cell types except:
- A.
  
  Ependymal cells.
- B.
  
  Neurons
- C.
  
  Astrocytes
- D.
  
  Oligodendrocytes.
15.

Extracellular matrix adhesion molecules enable axonal elongation by binding with which of the following receptors located in the membrane of the growth cone?
- A.
  
  Cadherins
- B.
  
  Laminins
- C.
  
  Integrins
- D.
  
  Fibronectins
16.

Which statement about cell adhesion molecules (CAMs) is incorrect?
- A.
  
  CAMs are only found within the cell membranes of neurons and glia.
- B.
  
  CAMs encourage growing axons to maintain contact and form axon bundles.
- C.
  
  CAMs act as both ligand and receptor, forming dimers of like molecules.
- D.
  
  CAMs may be calcium dependent or calcium independent.
17.

Which of the following molecules is a chemoattractant that plays an important role in guiding axonal growth at midline crossing points such as the optic chiasm?
- A.
  
  Semaphorin.
- B.
  
  Netrin
- C.
  
  Nogo
- D.
  
  Nerve Growth Factor
18.

Which of the following statements about trophic interactions is incorrect?
- A.
  
  Trophic interactions are mediated by trophic substances called neurotrophins.
- B.
  
  Trophic interactions determine the size of neuronal populations during development.
- C.
  
  Trophic interactions occur between presynaptic neurons and postsynaptic neurons.
- D.
  
  Trophic interactions no longer play a role in neuron survival and function in the adult nervous system.
19.

Which of the following events is a typical following injury to axons in the central nervous system?
- A.
  
  Schwann cells proliferate and increase production of neurotrophic factors.
- B.
  
  Myelin membranes (oligodendrocytes) produce chemorepellants that discourage axonal growth e.g. Nogo
- C.
  
  Neuronal cell bodies upregulate expression of genes that support axonal growth.
- D.
  
  Axons extend axonal sprouts towards target cells.
20.

In the neurological exam, confrontational testing, with the patient fixating on the examiner’s nose, is used to determine:
- A.
  
  Visual acuity
- B.
  
  The integrity of the visual fields
- C.
  
  Color vision
- D.
  
  The status of the retinal vasculature
21.

The integrity of the trigeminal (V) cranial nerve can be determined by asking the patient to:
- A.
  
  Open the jaw against resistance
- B.
  
  Puff out the cheeks
- C.
  
  Close eyes tightly
- D.
  
  Protrude the tongue
22.

Eliciting a patient’s gag reflex tests the integrity of the:
- A.
  
  Trigeminal (V) and facial (VII) nerves.
- B.
  
  Hypoglossal (XII) nerve.
- C.
  
  Accessory (XI) nerve.
- D.
  
  Glossopharyngeal (IX) and vagus (X) nerves.
23.

Tests of motor coordination, as well as dexterity and balance, assess the function of the:
- A.
  
  Basal ganglia
- B.
  
  Cerebellum
- C.
  
  Cerebral cortex
- D.
  
  Brainstem