Brain Anatomy and Physiology Flashcards
The structures of the brain are categorized in terms of three divisions: the ____, the ____, and ____.
Hindbrain; Midbrain; Forebrain
As the spinal cord enters the ____ it enlarges and forms the ____ ____, which contains the ____ and the ____. These two structures plus the cerebellum make up the ____.
Skull; Brain Stem; Medulla and the Pons; Hindbrain
The ____ influences the flow of information between the spinal cord and the brain. It coordinates swallowing, coughing, and sneezing and ____ several ____ ____ including breathing, heartbeat, and blood pressure. Damage to the medulla is often ____.
Medulla; Regulates; Vital Functions; Fatal
The pons connects the ___ ____ of the ____ and plays a role in the ____ of ____ in the ____ and ____ ____ of the ____.
Two Halves; Cerebellum; Integration of Movements; Right and Left Sides of the Body
The ____ is important for balance and posture and, in conjunction with the ____ ____ and ____ ____, is vital to the performance of coordinated and refined motor movements. For example, the ____ ____ are involved in the initiation of motor acts, while ____ plays a critical role in the timing and coordination of those acts and the correction of errors while performing those acts.
Cerebellum; Basal Ganglia and Motor Cortex; Basal Ganglia; Cerebellum
The cerebellum has also been implicated in ____ ____ and some aspects of ____ ____ (e.g., the ability to shift attention from one stimulus to another); and abnormalities in the cerebellum have been linked to ____, ____, and ____.
Sensorimotor Learning; Cognitive Functioning; Autism, Schizophrenia, and ADHD
Damage to the cerebellum can produce ____, a condition involving slurred speech, severe tremors, and a loss of balance. The similarity of these symptoms to behaviors produced by ____ ____ is due to the fact that alcohol exerts a strong effect on the ____.
Ataxia; Alcohol Intoxication; Cerebellum
All neural information that travels between the brain and the spinal cord passes through the ____, which contains several structures including the ____ and ____ ____, ____ ____, and the ____ ____.
Midbrain; Superior and Inferior Colliculi, Substantia Nigra, and the Reticular Formation
The superior and inferior colliculi serve as routes for ____ and ____ ____, respectively, while the substantia nigra is involved in ____ ____ and plays a role in the brain’s ____ ____. The ____ ____ extends from the spinal cord through the hindbrain and midbrain into the hypothalamus in the forebrain. It consists of over _ ____ (homogeneously grouped neurons) that are involved in various functions including respiration, coughing, vomiting, posture, locomotion, and REM sleep.
Visual and Auditory Information; Motor Activity; Reward System; Reticular Formation; 90 Nuclei
The ____ ____ ____ (___) is part of the reticular formation and is vital to ____, ____, and ____ It screens ____ ____, especially arouses higher centers in the brain when important information must be ____.
Reticular Activating System (RAS); Consciousness, Arousal, and Wakefulness; Sensory Input; Sleep; Processed
Damage to the reticular formation disrupts the ____-____ ____ and can produce a ____ ____-____ ____ of ____. Some general anesthetics work by ____ the ____ of the ____ ____ so that the anesthetized person is unaware of ____ ____ that would otherwise be experienced as ____.
Sleep-Wake Cycle; Permanent Coma-Like State of Sleep; Deactivating the Neurons; Reticular Formation; Sensory Input; Pain
The subcortical structures of the forebrain include the ____, ____, ____ ____, and ____ ____.
Thalamus, Hypothalamus, Basal Ganglia, and Limbic System
The ____ is involved in motor activity, language, and memory, and it acts as a “relay station” and transmits incoming sensory information to the appropriate areas of the cortex for all the senses except ____.
Thalamus; Olfaction
____ -____ ____ is due to a thiamine deficiency that causes atrophy of neurons in certain areas of the thalamus and is usually the result of ____ ____. This disorder begins with ____ ____ which is characterized by mental confusion, abnormal eye movements, and ataxia. It is then followed by ____ ____ which involves severe anterograde amnesia, retrograde amnesia, and confabulation.
Wernicke-Korsakoff Syndrome; Chronic Alcoholism; Wernicke’s Encephalopathy; Korsakoff’s Syndrome
The ____ is one of the smallest brain structures but is involved in a variety of vital functions including hunger, thirst, sex, sleep, body temperature, movement, and emotional reactions. Regarding emotions, the results of damage to the hypothalamus depend on its ____ but may involve ____ ____ or ____ ____ and ____.
Hypothalamus; Location; Uncontrollable Laughter or Intense Rage and Aggression
The hypothalamus monitors the body’s ____ ____ and initiates the responses needed to maintain ____ through its influence on the ANS and the pituitary and other endocrine glands. The ____ ____ (___) is located in the ____ and mediates the ____ -____ ____ and other ____ ____. and there is evidence that the SCN is involved in ____ ____ ____. The hypothalamus also contains the ____ ____, which are involved in ____ and ____.
Internal States; Homeostasis; Suprachiasmatic Nucleus (SCN); Hypothalamus; Sleep-Wake Cycle; Circadian Rhythms; Seasonal Affective Disorder; Mammillary Bodies; Learning and Memory
The ____ ____ consist of three forebrain structures — the ____, ____, ____, ____ ____ — and the ____ ____ which is in the ____.
Basal Ganglia; Caudate, Nucleus, Putamen, Globus Pallidus; Substantia Nigra; Midbrain
The ____ ____ are involved in planning, organizing, and coordinating voluntary movement and regulating the amplitude and direction of motor actions. They also play a role in ____ ____ and in ____, species-specific ____ ____ of ____ ____ such as smiling when happy, frowning when sad, and running when afraid.
Basal Ganglia; Sensorimotor Learning; Stereotyped; Motoric Expressions of Emotional States
Several disorders involving prominent motor symptoms are associated with ____ ____ path____ ology including Huntington’s disease, Parkinson’s disease, Tourette’s Disorder, OCD, and ADHD. Regarding the latter, problems related to the ____ ____ that characterize ADHD have been linked to a ____ -____ -____ ____ ____, ____ ____, and ____ ____. Areas of the basal ganglia have also been implicated in ____, ____, ____ -____ ____, and ____.
Basal Ganglia Pathology; Behavioral Inhibition; Smaller-Than-Normal Caudate Nucleus, Globus Pallidus, and Prefrontal Cortex; Mania, Depression, Obsessive-compulsive Symptoms, and Psychosis
The ____ ____ is involved in memory and other cognitive functions but is primarily associated with the mediation of ____. It consists of several structures including the ____, ____, and ____ ____.
Limbic System; Emotion; Amygdala, Hippocampus, and Cingulate Cortex
The ____ integrates, coordinates, and directs motivational and emotional activities, attaches emotions to memories, and is involved in the recall of emotionally-charged experiences. For example, there is evidence that the amygdala is involved in the formation of ____ ____, which are vivid, detailed memories of significant, highly emotion-arousing events.
Amygdala; Flashbulb Memories
The amygdala is also known to play a role in the acquisition of ____ ____ ____ ____, which occur when a ____ ____ is paired with an ____ -____ ____ ____ and, as a result, the ____ ____ produces an ____ ____.
Classically Conditioned Emotional Responses; Neutral Stimulus; Emotion-Arousing Neutral Stimulus; Emotional Reaction
The impact of the amygdala on emotional responses and other behaviors was demonstrated by Kluver and Bucy (1938) who found that ____ ____ in the ____ and ____ ____ of primates substantially reduce ____ and ____, increase ____ and compulsive oral exploratory behaviors, alter ____ ____ (normally vegetarian, monkeys began to eat meat), and produce ____ and “____ ____” (an inability to recognize the significance or meaning of events or objects). This pattern of behavior is referred to as the ____ -____ ____.
Bilateral Lesions; Amygdala and Temporal Lobes; Fear and Aggression; Docility; Dietary Habits; Hypersexuality and Psychic Blindness; Kluver-Bucy Syndrome
The ____ is less directly implicated in emotions than other limbic system structures and is associated more with ____ and ____. Specifically, the hippocampus is involved in processing ____, ____, and ____ ____ and consolidating ____ ____, which means that it is involved in converting short-term declarative memories to ____ -____ ____. (The actual storage of declarative memories takes place elsewhere, however — most likely in the ____ and ____ ____ of the ____ ____.)
Hippocampus; Learning and Memory; Spatial, Visual, and Verbal Information; Declarative Memories; Long-Term Memories; Frontal and Temporal Lobes; Cerebral Cortex
Bilateral removal of the ____ ____ ____ (which include the hippocampus) as a treatment for severe epilepsy causes ____ ____ and ____ ____ for events occurring up to ____ ____ prior to the surgery. There is also evidence that the hippocampus and other medial temporal lobe structures are essential for the formation of ____ ____.
Medial Temporal Lobes; Anterograde Amnesia and Retrograde Amnesia; Three Years; Visual Images
The ____ ____ surrounds the corpus callosum and is involved in attention, emotion, and the perception and subjective experience of ____. With regard to the latter, the ____ ____ is involved in the transmission of pain signals and plays an important role in the emotional response to ____ ____.
Cingulate Cortex; Pain; Anterior Cingulate Cortex; Painful Stimuli
The hindbrain consists of the pons, the medulla, and the cerebellum. The (l) ____ regulates a number of vital functions and damage to this structure is often fatal. The (2) ____ is important for balance, posture, and coordination, and damage can produce (3) ____, which involves slurred speech, severe tremors, and a loss of balance. The midbrain includes the (4) ____, which is vital to consciousness, arousal, and wakefulness.
(1) medulla; (2) cerebellum; (3) ataxia; (4) reticular activating system (RAS)
The forebrain consists of subcortical and cortical structures. One of the subcortical structures, the (5) ____, acts as a relay station for all of the senses except (6) ____. (7) ____ syndrome is due to a thiamine deficiency that causes atrophy of neurons in certain areas of the thalamus and the mammillary bodies of the hypothalamus and is usually the result of chronic alcoholism.
(5) thalamus; (6) olfaction; (7) Wernicke-Korsakoff