The Brain and Nervous System
50 questions available
Questions
According to the text, what are the three main components of a neuron?
View answer and explanationWhat is the primary function of the dendrites in a neuron?
View answer and explanationWhat is the term for the long tail of a neuron that leads away from the cell body and transmits an electrical signal?
View answer and explanationApproximately how many neurons are there in the human brain?
View answer and explanationThe Central Nervous System (CNS) is comprised of which two parts?
View answer and explanationWhat is the function of the myelin sheath?
View answer and explanationDespite making up only about 2 percent of our overall weight, the brain consumes what percentage of the total oxygen and calories we consume?
View answer and explanationWhich part of the brain is considered the 'oldest' part and is in charge of basic 'life support' functions like breathing and digestion?
View answer and explanationWhat is the primary function of the cerebellum?
View answer and explanationThe thick bundle of neurons that connects the two cerebral hemispheres and allows them to communicate is called the:
View answer and explanationThe concept that the left side of the brain controls sensory and motor functions for the right side of the body, and vice versa, is known as being:
View answer and explanationA split-brain patient is shown a car key in their left visual field. According to the text, what is the most likely outcome when they are asked what they saw?
View answer and explanationWhich lobe of the cerebral cortex is located at the back of the brain and houses the visual area?
View answer and explanationThe processing of sounds and smells primarily occurs in which lobe of the cerebral cortex?
View answer and explanationWhich lobe of the cerebral cortex processes touch and taste?
View answer and explanationHighly complicated processes such as creative problem solving, planning, and organization occur in which lobe of the cerebral cortex?
View answer and explanationThe 'motor strip,' which is in charge of voluntary movements, is located in which lobe?
View answer and explanationThe Peripheral Nervous System (PNS) carries signals for which types of actions?
View answer and explanationHow did the surgeon Paul Broca identify the function of what is now called 'Broca's Area'?
View answer and explanationWhich neuroimaging technique records metabolic activity by detecting radioactive substances injected into the bloodstream?
View answer and explanationBoth PET and fMRI scans are described as having poor temporal resolution. What does this mean?
View answer and explanationWhich neuroimaging technique has better temporal resolution but poor spatial resolution because it measures electrical activity from the scalp?
View answer and explanationWhat is the function of the limbic system?
View answer and explanationAccording to the text, what is the chemical part of the electro-chemical signal that travels from one neuron to another?
View answer and explanationBy what day of gestation are the spinal cord, hindbrain, midbrain, and forebrain all visibly distinct in a developing human?
View answer and explanationNeurotransmitters such as serotonin and dopamine are associated with which functions, respectively?
View answer and explanationThe cerebrum, also called the cerebral cortex, is described as the 'newest' part of the brain and is in charge of what types of processes?
View answer and explanationWhich neuroimaging technique works by shining infrared light into the brain and measuring how the light properties change?
View answer and explanationThe main difference in brain development between humans and other animals, as mentioned in the text, is that humans have a much more developed:
View answer and explanationThe portion of the nervous system that is encased in bone is known as the:
View answer and explanationWhat term refers to the space between two neurons where chemical communication occurs?
View answer and explanationIn a split-brain patient, if they see a car key with their right visual field, why can they say 'I see a car key'?
View answer and explanationHow much dedicated brain space on the motor strip is required for the lips compared to other body parts?
View answer and explanationThe term for the electrical part of the signal that shoots down the axon is called:
View answer and explanationWhat is the key difference between the Central Nervous System (CNS) and the Peripheral Nervous System (PNS)?
View answer and explanationWhich part of the brain is associated with higher, less primal functions like planning and self-awareness, and is more developed in humans than in animals like rats?
View answer and explanationWhat does a Functional Magnetic Resonance Imaging (fMRI) scan measure to infer brain activity?
View answer and explanationWhich of the following is NOT listed as a structure within the limbic system?
View answer and explanationThe term 'soma' refers to what part of a neuron?
View answer and explanationBroca's Area, implicated in language production, is located in which part of the brain?
View answer and explanationAnatomists and neuroscientists often divide the brain into which three basic portions?
View answer and explanationEEG is known to have poor spatial resolution. What does this mean?
View answer and explanationThe cerebrum is made up of two cerebral hemispheres that are in charge of processes associated with:
View answer and explanationWhat does it mean that the nervous system communicates using an 'electro-chemical signal'?
View answer and explanationThe Peripheral Nervous System (PNS) is divided into which two major subsystems in the provided diagram?
View answer and explanationAccording to the text, the Autonomic Nervous System is responsible for:
View answer and explanationWhich part of the brain did Aristotle refer to as the 'small brain'?
View answer and explanationWhen people talk about 'nerves' in the nervous system, what does this typically refer to?
View answer and explanationThe text mentions that a key advantage of modern neuroimaging techniques over early methods is that:
View answer and explanationThe text compares the thickness of a synaptic gap to what common object to give a sense of scale?
View answer and explanation