Neuroscience Test 1 Review
- 1.What area is located in/on the precentral gyrus?
- A.
Visual association cortex
- B.
Primary visual cortex
- C.
Primary auditory cortex
- D.
Primary motor cortex
- E.
Primary somatosensory cortex
- 2.What is the embryological origin of the thalamus?
- A.
Metencephalon
- B.
Telencephalon
- C.
Myelencephalon
- D.
Diencephalon
- E.
Mesencephalon
- 3.The central sulcus separates which lobes?
- A.
Temporal from parietal
- B.
Frontal from parietal
- C.
Frontal from temporal
- D.
Parietal from occipital
- 4.Which area is a major relay center for information going to the cerebral hemispheres?
- A.
Hypothalamus
- B.
Frontal Lobe
- C.
Midbrain
- D.
Medulla
- E.
Thalamus
- 5.Newly formed neurons use which structures to travel to their final locations in the brain?
- A.
Microglial cells
- B.
Ventricular zone cells
- C.
Oligodendrocytes
- D.
Radial glial cells
- 6..Major sensory and motor deficits that are particularly prominent in the upper extremity would result from a blockage of which of the following arteries?
- A.
.Anterior cerebral artery
- B.
.Posterior cerebral artery
- C.
.Posterior communicating artery
- D.
.Middle cerebral artery
- E.
.Anterior communicating artery
- 7..How does cerebrospinal fluid flow into the 4th ventricle?
- A.
.Lateral aperature
- B.
.Arachnoid granulations
- C.
.Median aperature
- D.
.Interventricular foramen (of Monroe)
- E.
.Cerebral aqueduct
- 8..Which of the following drain blood into the confluence of sinuses?
- A.
.Straight, transverse, and superior sagittal sinuses
- B.
.Superior sagittal, occipital, and sigmoid sinuses
- C.
.Straight, occipital, and transverse sinuses
- D.
.Superior sagittal, straight, and occipital sinuses
- E.
.Sigmoid, straight, and transverse sinuses
- 9..How does cerebrospinal leave the subarachnoid space?
- A.
.Median aperature
- B.
.Interventricular foramen (of Monroe)
- C.
.Lateral aperature
- D.
.Cerebral aqueduct
- E.
.Arachnoid granulations
- 10..What are the three primary bulges that form at the cephalic end of the neural tube at four weeks?
- A.
.Rhombencephalon, prosencephalon, diencephalon
- B.
.Myelencephalon, metencephalon, mesencephalon
- C.
.Prosencephalon, mesencephalon, rhombencephalon
- D.
.Telencephalon, rhombencephalon, metencephalon
- 11..What is the main ion channel responsible for the depolarization phase of an action potential?
- A.
.Voltage-gated potassium channel
- B.
.Potassium leakage channel
- C.
.Voltage-gated sodium channel
- D.
.Sodium leakage channel
- 12..Which axon type would have the highest action potential conduction velocity?
- A.
.Myelinated, large diameter
- B.
.Myelinated small diameter
- C.
.Unmyelinated, small diameter
- D.
.Unmyelinated, large diameter
- 13..In the normal axon, why is reverse propagation of the action potential is not possible?
- A.
.A result of sodium ion influx
- B.
.Sodium channel inactivation
- C.
.Because of potassium ion influx
- D.
.Potassium channel inactivation
- 14..What happens when an excitatory postsynaptic potential (EPSP) is being generated on a dendritic membrane?
- A.
.Sodium gates will open first, and then close as potassium gates open
- B.
.Specific sodium gates will open
- C.
.Both sodium and potassium gates will open
- D.
.Sodium and potassium will flow through the same channel
- E.
.Specific potassium gates will open
- 15..What is the main ion channel responsible for the repolarization phase of an action potential?
- A.
.Potassium leakage channel
- B.
.Sodium leakage channel
- C.
.Voltage-gated potassium channel
- D.
.Voltage-gated sodium channel
- 16..Which cells form the blood-CSF barrier which is part of the blood-brain barrier?
- A.
.Microglia
- B.
.Oligodendrocytes
- C.
.Ependymal cells
- D.
.Schwann cells
- 17..Which cells create the myelin sheath of axons in the central nervous system?
- A.
.Astrocytes
- B.
.Oligodendrocytes
- C.
.Microglia
- D.
.Schwann cells
- E.
.Ependymal cells
- 18..Opening a ligand-gated chloride channel will cause the resting membrane potential to do which of the following?
- A.
.Fire an action potential
- B.
.Depolarize
- C.
.Repolarize
- D.
.Hyperpolarize
- E.
.Generate an excitatory postsynaptic potential
- 19..What is the main ion channel responsible for the release of neurotransmitter from the axonal terminal?
- A.
.Voltage-gated potassium channel
- B.
.Voltage-gated sodium channel
- C.
.Voltage-gated calcium channel
- D.
.Voltage-gated chloride channel
- 20..Which neurotransmitter usually causes fast inhibitory postsynaptic potentials (IPSPs) in the brain?
- A.
.Dopamine
- B.
.Glutamate
- C.
.GABA
- D.
.Serotonin
- E.
Glycine
- 21.. What is the inferior boundary of the frontal lobe?
- A.
.lateral sulcus
- B.
.parietooccipital sulcus
- C.
.premotor gyrus
- D.
.calcarine sulcus
- 22.. The primary somatosensory cortex is located in the ________.
- A.
.occipital lobe
- B.
.frontal lobe
- C.
.temporal lobe
- D.
.parietal lobe
- 23.The postcentral gyrus is located in which lobe?
- A.
Occipital lobe
- B.
.frontal lobe
- C.
.temporal lobe
- D.
.parietal lobe
- 24.. Which structure divides the occipital lobe into superior and inferior parts?
- A.
.parietooccipital sulcus
- B.
.lateral sulcus
- C.
.central sulcus
- D.
.calcarine sulcus
- E.
Longitudinal fissure
- 25..What is a function of the occipital lobe?
- A.
.formation of memories
- B.
.processing visual information
- C.
.processing somatosensory information
- D.
.processing auditory information
- E.
Initiation of voluntary movements
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