Neuroscience Test 1 Review

27 Questions | By BrieG3 | Updated: Mar 22, 2022 | Attempts: 1727

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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