NSG 527 Final ACCURATE TESTED VERSIONS OF THE EXAM ACCURATE AND VERIFIED FOR GUARANTEED PASS | GUARANTEED PASS| LATEST UPDATE|

The ____________ are clusters of nerve cells surrounding the thalamus. A) Cerebellum B) Hypothalamus C) Basal ganglia D) Medulla oblongata Correct Answer: C) Basal ganglia Rationale: The basal ganglia are a group of nuclei surrounding the thalamus involved in motor control and other functions. The ____________ is very important in the transition of information from short to long-term memory. A) Amygdala B) Hippocampus C) Medulla D) Pons Correct Answer: B) Hippocampus Rationale: The hippocampus is critical for converting short-term memories into long-term storage. The hippocampus is also part of the _____ lobe; damage to that portion of the brain can result in a loss of memory. A) Frontal B) Temporal C) Parietal D) Occipital Correct Answer: B) Temporal Rationale: The hippocampus lies within the temporal lobe, playing a key role in memory formation. The major effect of the ____________ is to inhibit unwanted muscular activity, and disorders of the ____________ result in exaggerated, uncontrolled movements. A) Pons; cerebellum B) Basal ganglia; basal ganglia C) Thalamus; cerebrum D) Hypothalamus; brainstem Correct Answer: B) Basal ganglia; basal ganglia Rationale: The basal ganglia help regulate movement, and dysfunction leads to motor disorders such as tremors. The ____________ has involuntary control of internal organs, blood vessels, smooth and cardiac muscles. A) Central nervous system B) Autonomic nervous system C) Somatic nervous system D) Peripheral nervous system Correct Answer: B) Autonomic nervous system Rationale: The ANS regulates involuntary functions such as heart rate and digestion. Diseases such as multiple sclerosis result in a lack of this ____________, severely decreasing signal conduction. A) Dendrite B) Axon C) Myelin sheath D) Synapse Correct Answer: C) Myelin sheath Rationale: MS damages the myelin sheath, slowing nerve impulse transmission. Neurons lying entirely within the CNS are called: A) Afferent neurons B) Interneurons C) Efferent neurons D) Glial cells Correct Answer: B) Interneurons Rationale: Interneurons connect neurons within the CNS and integrate information. Also known as sensory neurons, these are specialized to send impulses toward the CNS. A) Efferent neurons B) Motor neurons C) Interneurons D) Afferent neurons Correct Answer: D) Afferent neurons Rationale: Afferent neurons carry sensory information from the body to the CNS. These nerve cells carry signals from the CNS to the cells in the peripheral system. A) Afferent neurons B) Efferent neurons C) Interneurons D) Receptors Correct Answer: B) Efferent neurons Rationale: Efferent neurons transmit motor commands from the CNS to the body. A structure that permits a neuron to pass an electrical or chemical signal to another cell is called a: A) Receptor B) Myelin sheath C) Synapse D) Axon hillock Correct Answer: C) Synapse Rationale: The synapse is the junction where neurons communicate via neurotransmitters or electrical impulses. The first areas of the brain to fully develop and regulate autonomic functions are the: A) Hippocampus and cerebellum B) Brainstem and midbrain C) Frontal and temporal lobes D) Basal ganglia and amygdala Correct Answer: B) Brainstem and midbrain Rationale: These areas control basic life functions like breathing and heart rate. If babies' sounds are ignored repeatedly when they begin to babble around 6 months, their ____________ may be delayed. A) Motor skills B) Visual acuity C) Language D) Memory Correct Answer: C) Language Rationale: Responsive interaction is critical for early language development. Chronic stress or repeated traumas can result in a biological reaction known as: A) Neuroplasticity B) Persistent fear response C) Hypersomnia D) Hyperactivity Correct Answer: B) Persistent fear response Rationale: Ongoing trauma can lead to a constant state of fear and hypervigilance. When children are exposed to chronic, traumatic stress, they may experience: A) Hyperarousal B) Dyslexia C) Sleepwalking D) Euphoria Correct Answer: A) Hyperarousal Rationale: Their brains become wired to respond to threats with intense fear responses. Infants or children who experience repeated abuse may mentally and emotionally remove themselves from situations, a process known as: A) Regression B) Dissociation C) Projection D) Repression Correct Answer: B) Dissociation Rationale: Dissociation helps children cope with overwhelming trauma. Disrupted attachment may lead to impairments in: A) Physical growth, verbal skills, and math performance B) Increased appetite, social strength, and motor skills C) Stress regulation, emotion regulation, and social interaction D) Intelligence, creativity, and endurance Correct Answer: C) Stress regulation, emotion regulation, and social interaction Rationale: Secure attachment is key to emotional and social development. Children with insecure attachments may have difficulty regulating their emotions and: A) Showing empathy B) Performing arithmetic C) Developing gross motor skills D) Learning grammar Correct Answer: A) Showing empathy Rationale: Emotional regulation affects a child's ability to empathize. Diminished growth in the ____________ hemisphere may increase the risk for depression. A) Right B) Left C) Upper D) Lower Correct Answer: B) Left Rationale: Underdevelopment of the left hemisphere has been associated with depressive disorders. Irritability in the ____________ system sets the stage for panic and PTSD. A) Digestive B) Endocrine C) Limbic D) Skeletal Correct Answer: C) Limbic Rationale: The limbic system governs emotion and stress responses. Smaller growth in the ____________ and ____________ can increase the risk for dissociative disorders and memory issues. A) Amygdala; cerebellum B) Hippocampus; limbic system C) Brainstem; pons D) Frontal lobe; occipital lobe Correct Answer: B) Hippocampus; limbic system Rationale: These areas are critical for memory and emotional regulation. Impairment in the connection between the two ____________ ____________ has been linked to ADHD symptoms. A) Brain hemispheres B) Spinal nerves C) Cerebellar lobes D) Optic tracts Correct Answer: A) Brain hemispheres Rationale: A well-integrated corpus callosum supports attention and focus. The ____________ acts as a gatekeeper, filtering sensory info before it reaches the cortex. A) Medulla B) Thalamus C) Hippocampus D) Amygdala Correct Answer: B) Thalamus Rationale: The thalamus routes sensory signals to appropriate cortical areas. Which neurotransmitter is involved in voluntary movement, learning, memory, and sleep? A) Dopamine B) Acetylcholine C) Serotonin D) Norepinephrine Correct Answer: B) Acetylcholine Rationale: Acetylcholine plays a key role in these central nervous system functions. Too much ____________ is associated with depression; too little in the hippocampus is linked to dementia. A) Serotonin B) GABA C) Acetylcholine D) Dopamine Correct Answer: C) Acetylcholine Rationale: Acetylcholine imbalance affects mood and memory. Which neurotransmitter is correlated with movement, attention, and learning? A) Serotonin B) Dopamine C) GABA D) Glutamate Correct Answer: B) Dopamine Rationale: Dopamine regulates these critical brain functions. Too much ____________ is linked to schizophrenia; too little to Parkinson’s and depression. A) Serotonin B) Dopamine C) Acetylcholine D) Norepinephrine Correct Answer: B) Dopamine Rationale: Dopamine dysregulation affects both mental and motor health. Which neurotransmitter is associated with eating and alertness? A) Norepinephrine B) Serotonin C) GABA D) Endorphins Correct Answer: A) Norepinephrine Rationale: Norepinephrine plays a role in alertness and appetite.