_______________ help form a barrier that prevents certain substances in the bloodstream from reaching the brain.

Related MCQs

• The brain structure that is part of the brain stem and is an important relay station that helps coordiante auditory and visual information before sending it on to higher brain centers is called the ___________________.
• If it were discovered that destruction of a particular area of the brain disrupted a certain behaviour but that destruction of any other part of the brain had no effect on that behaviour, this would be evidence in favour of
• ________________ are the chemical messengers that are secreted into the bloodstream by endocrine glands.
• A new, improved brain imaging technique for measuring glucose metabolism of the brain is called
• The concept that phylogenetically newer and more complex parts of the brain take over, or dominate, the functioning of older parts of the brain, is termed as:
• _________________ carries sensory information via afferent nerve fibers from receptors throughout the body to the brain and conducts information via efferent nerve fibers from the brain to muscles and glands.
• The _________________ provides three-dimensional, highly detailed views of the brain using electrical signals generated by the brain in response to magnetic fields.
• A new technique that takes a rapid series of brain images that are then put together by a computer to produce clear, sharp "movies" of brain activity is called________________.
• The ___________________ provides color coded images of the brain's activity by measuring the amount of glucose used in different brain regions.
• Someone with either a partial or complete inability to articulate ideas or understand spoken or written language due to brain injury or brain damage is likely to be given the general diagnosis of ________________