Early BBB Review

The parietal lobe in the brain is primarily responsible for which of the following?

• Processing sensory information and spatial awareness.
• Processing visual information and color perception.
• Controlling voluntary muscle movements.
• Regulating heart rate and blood pressure.

A neuron's internal electrochemical charge when at rest is typically which of the following?

• -50 millivolts
• -90 millivolts
• 0 millivolts
• -70 millivolts

How many potassium are transported into the neuron and how many sodium are transported out of the neuron by the sodium potassium pump?

• 2 potassium ions in, 3 sodium ions out
• 1 potassium ion in, 2 sodium ions out
• 3 potassium ions in, 2 sodium ions out
• 2 potassium ions in, 2 sodium ions out

What type of cell makes the myelin sheath in the central nervous system?

• Astrocytes
• Microglia
• Ependymal cells
• Oligodendrocytes

What common neurological disorder results from the break down of the myelin sheath?

• Parkinson's Disease
• Alzheimer's Disease
• Epilepsy
• Multiple Sclerosis

What is the role of the ribosome in protein synthesis?

• The ribosome synthesizes proteins by translating mRNA into amino acid sequences.
• The ribosome stores genetic information for protein synthesis.
• The ribosome breaks down proteins into amino acids.
• The ribosome transports proteins to the nucleus.

What are two functions of astrocytes?

• Facilitate muscle contraction and store hemoglobin.

• Produce hormones for growth and send mRNA

• Store genetic information and send action potentials

• Provide nourishment to neurons and provide structural support to neurons

The long, fiber like part of a neuron which the cell sends information to receiving neurons

• axon

• dendrite

• myelin

• Node of Ranvier

The occipital lobe in the brain is primarily responsible for ____.

• language comprehension
• motor control
• auditory processing
• visual processing

What is an action potential?

• A slow change in temperature within a cell.
• A type of neurotransmitter released by neurons.
• An action potential is a rapid change in electrical potential across a cell membrane that enables signal transmission.
• A method of cellular respiration in muscle cells.