Studying the Nervous System Part 2

Non-invasive brain stimulation in which a changing magnetic field is used to induce an electric current at a specific area of the brain through electromagnetic induction:

• Peripheral nerve stimulation (PNS)
• Intracranial magnetic stimulation (IMS)
• Transcranial magnetic stimulation (TMS)
• Transcranial electric stimulation (TES)

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What EEG brain waves are most prominent during Deep Sleep or stages 3 and 4 sleep?

• Alpha waves
• Beta waves
• Delta waves
• Theta waves

Predominant EEG waves during problem solving, actively thinking, etc.

• Alpha waves
• Theta waves
• Delta waves
• Beta waves

What is the practical use of transcranial magnetic stimulation?

• Improving eyesight and vision
• Enhancing muscle strength and endurance
• Regulating blood sugar levels
• Treating depression, anxiety, and neurological disorders

Which of the following imaging techniques involves the greatest risk for ionizing radiation?

• X-ray

• MRI
• Ultrasound
• CT scan

• fMRI

A 65-year-old male with a history of hypertension and diabetes presented to the emergency department with sudden-onset right-sided weakness and slurred speech. The patient's family reported that he had become disoriented and was unable to lift his right arm. Clinical examination revealed facial asymmetry and weakness on the right side, consistent with a stroke. What is your immediate course of action?

• Begin thrombolytic therapy with tPA

• Order a head X-ray

• Order a head CT scan

• Administer aspirin and hope for the best

Detects changes in the distribution of water molecules in different tissues based on their magnetic properties:

• Computed Tomography (CT) scan
• Ultrasound
• X-ray
• Magnetic Resonance Imaging (MRI)

Tags

NGSS.HS-PS4-5

Identifies major axon pathways in the brain by detecting similarities in the direction of water molecules within specific regions of the magnetic field.

• Computed tomography (CT)
• Magnetic resonance imaging (MRI)
• Diffusion tensor imaging (DTI)
• Positron emission tomography (PET)

Based on metabolic activity (oxygen-dependent) of the brain, this technique is ideal to determine which areas of the brain are metabolically active (functioning) when performing a certain task, such as reading or speaking.

• Positron Emission Tomography (PET)
• X-ray
• Ultrasound
• Magnetic resonance imaging (MRI)

• Functional magnetic resonance imaging (fMRI)

Functional neuroimaging technique for mapping brain activity by recording magnetic fields produced by electrical currents occurring naturally in the brain providing millisecond resolution of electrical activity in the human brain before, during, and after performance of a variety of tasks

• Magnetoencephalography (MEG)
• Computed Tomography (CT)
• Electroencephalography (EEG)
• Positron Emission Tomography (PET)