Neuroanatomy Exam: MCQ Trivia Quiz!
(115).jpg "Neuroanatomy Exam: MCQ Trivia Quiz!")
- 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
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