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This section includes 1405 Mcqs, each offering curated multiple-choice questions to sharpen your Logical and Verbal Reasoning knowledge and support exam preparation. Choose a topic below to get started.
351. |
________________ are the chemical messengers that are secreted into the bloodstreamby endocrine glands. |
A. | Hormones |
B. | Nerves |
C. | Spinal reflexes |
D. | Pituitary glands |
Answer» B. Nerves | |
352. |
The _________________ response refers to physiological changes, such as increased heart rate, accelerated breathing, dry mouth and perspiration, which occur in response toperceived threats or danger. |
A. | Fight |
B. | Flight |
C. | Fight-or-flight |
D. | Spinal reflex |
Answer» D. Spinal reflex | |
353. |
The central nervous system is a major division of the nervous system and consists of thebrain and _________________. |
A. | Spinal cord |
B. | Hypothalamus |
C. | Pituitary gland |
D. | Limbic system |
Answer» B. Hypothalamus | |
354. |
__________________ subdivision of the peripheral nervous system that regulatesinvoluntary functions. |
A. | Somatic nervous system |
B. | Autonomic nervous system |
C. | Sympathetic nervous system |
D. | Parasympathetic nervous system |
Answer» C. Sympathetic nervous system | |
355. |
__________________ division of the nervous system that includes all the nerves lyingoutside the central nervous system. |
A. | Central nervous system |
B. | Peripheral nervous system |
C. | Sympathetic nervous system |
D. | Parasympathetic nervous system |
Answer» C. Sympathetic nervous system | |
356. |
__________________ is a peanut-sized forebrain structure that is part of the limbicsystem and regulates behaviors related to survival, such as eating, drinking and sexual activity. |
A. | Hypothalamus |
B. | Spinal cord |
C. | Pituitary gland |
D. | Endocrine system |
Answer» B. Spinal cord | |
357. |
______________ are the simple, automatic behaviors that are processed in the spinalcord. |
A. | Endocrine hormones |
B. | Hypothalamus |
C. | Spinal reflexes |
D. | Inhibitory processes |
Answer» D. Inhibitory processes | |
358. |
______________ is a communication system composed of glands located throughout thebody that secrete hormones into the blood stream. |
A. | Nervous system |
B. | Hypothalamus |
C. | Pituitary gland |
D. | Endocrine system |
Answer» E. | |
359. |
The _________________ secretes hormones that affect the functioning of other glands aswell as hormones that act directly on physical processes. |
A. | Endocrine |
B. | Hypothalamus |
C. | Pituitary gland |
D. | Nerve cells |
Answer» D. Nerve cells | |
360. |
___________________ structure serves as the main link between the nervous system andthe endocrine system. |
A. | Brain |
B. | Hypothalamus |
C. | Pituitary gland |
D. | Nerve |
Answer» C. Pituitary gland | |
361. |
The _______________ bundle of neuron axons that carries information in the peripheralnervous system. |
A. | Hormone |
B. | Nerve |
C. | Pituitary gland |
D. | Hypothalamus |
Answer» C. Pituitary gland | |
362. |
The signals that trigger the secretion of hormones are regulated primarily by a brainstructure called the _________________. |
A. | Endocrine gland |
B. | Hypothalamus |
C. | Pituitary gland |
D. | Spinal reflexes |
Answer» C. Pituitary gland | |
363. |
Metabolism, growth rate, digestion, blood pressure and sexual development andreproduction are all processes regulated by __________________. |
A. | Endocrine hormones |
B. | Hypothalamus |
C. | Brain |
D. | Spinal reflexes |
Answer» B. Hypothalamus | |
364. |
The ______________ system is made up of glands located throughout the body and useschemical messengers called hormones to transmit information from one part of the body to another. |
A. | Nervous |
B. | Endocrine |
C. | Autonomic |
D. | Somatic |
Answer» C. Autonomic | |
365. |
The ______________ nervous system maintains normal body functions and conservesthe body's physical resources. |
A. | Somatic |
B. | Autonomic |
C. | Sympathetic |
D. | Parasympathetic |
Answer» E. | |
366. |
The _______________ nervous system regulates involuntary functions such asheartbeat, blood pressure, digestion and breathing. |
A. | Somatic |
B. | Autonomic |
C. | Sympathetic |
D. | Parasympathetic |
Answer» C. Sympathetic | |
367. |
The _________________ nervous system is the body's emergency system and producesrapid physical arousal in response to perceived threats or in response to emotions such as anger or anxiety. |
A. | Somatic |
B. | Autonomic |
C. | Sympathetic |
D. | Parasympathetic |
Answer» D. Parasympathetic | |
368. |
The ________________ nervous system communicates sensory information received by sense organ receptors to the central nervous system and carries messages from the centralnervous system along motor nerves to the muscles. |
A. | Somatic |
B. | Autonomic |
C. | Sympathetic |
D. | Parasympathetic |
Answer» B. Autonomic | |
369. |
The ____________ nervous system has two subdivisions, the autonomic nervous systemand somatic nervous system. |
A. | Central |
B. | Peripheral |
C. | Sympathetic |
D. | Parasympathetic |
Answer» C. Sympathetic | |
370. |
____ in the spinal cord that carry information from the brain to muscles andglands throughout the body. |
A. | Afferent nerve fibers |
B. | Efferentnerve fibers |
C. | Hormones |
D. | Endocrine |
Answer» C. Hormones | |
371. |
________________ have been called the “keys to paradise” because of theirpleasure-pain controlling properties. |
A. | Dopamines |
B. | Serotonin |
C. | GABA |
D. | Endorphins |
Answer» E. | |
372. |
_________________ carries sensory information via afferent nerve fibers fromreceptors throughout the body to the brain and conducts information via efferent nerve fibers from the brain to muscles and glands. |
A. | Spinal cord |
B. | Nodes of Ranvier |
C. | Hippocampus |
D. | Cell body |
Answer» B. Nodes of Ranvier | |
373. |
______________ is a poison that paralyzes lung muscles by occupying criticalacetylcholine receptors, preventing the normal activity of the transmitter. |
A. | Valium |
B. | Curare |
C. | Xanax |
D. | Prozac |
Answer» C. Xanax | |
374. |
An action potential begins when the excitatory inputs are sufficiently strong withrespect to inhibitory inputs to depolarize the cell from ______________ millivolts. |
A. | -70 to -60 |
B. | -75 to -65 |
C. | -70 to -55 |
D. | -75 to -60 |
Answer» D. -75 to -60 | |
375. |
To complete synaptic transmission, the neurotransmitters attach to receptormolecules embedded in the __________________ . |
A. | Presynaptic membrane |
B. | Postsynaptic membrane |
C. | Cell membrane |
D. | Synaptic vesicles |
Answer» C. Cell membrane | |
376. |
___________________ has pioneered the use of electrical stimulation to probestructures deep in the brain. |
A. | Walter Hess |
B. | Broca |
C. | Wernicke |
D. | Roger Sperry |
Answer» B. Broca | |
377. |
During the ______________, the neuron will fire only in response to a stimulusstronger than what is ordinarily necessary. |
A. | Absolute refractory period |
B. | Relative refractory period |
C. | Depolarization |
D. | Excitatory period |
Answer» C. Depolarization | |
378. |
Multiple sclerosis (MS) is a devastating disorder caused by deterioration of the ________________. |
A. | Nodes of Ranvier |
B. | Ganglia |
C. | Substantianiagra |
D. | Myelin sheath |
Answer» E. | |
379. |
Anxiety disorders are often treated with benzodiazepine drugs, such as______________, that increase GABA activity. |
A. | Valium |
B. | Curare |
C. | Xanax |
D. | Prozac |
Answer» B. Curare | |
380. |
________________ is an antidepressanr drug that enhances the action of serotoninby preventing it from being removed from the synaptic cleft. |
A. | Valium |
B. | Curare |
C. | Xanax |
D. | Prozac |
Answer» E. | |
381. |
_______________often found in food that has been preserved incorrectly, poisonsan individual by preventing release of acetylcholine in the respiratory system. |
A. | Botulinum toxin |
B. | Curare |
C. | Xanax |
D. | Prozac |
Answer» B. Curare | |
382. |
A ____________ is any substance that modifies or modulates the activities of thepostsynaptic neuron. |
A. | Neurotransmitter |
B. | Neuromodulator |
C. | Acetylcholine |
D. | Serotonin |
Answer» C. Acetylcholine | |
383. |
The ____ contains structures that collectively regulate the internal state of thebody. |
A. | Stem cells |
B. | Brain stem |
C. | Endocrine system |
D. | Limbic system |
Answer» C. Endocrine system | |
384. |
The _________is a dense network of nerve cells that serves as the brain’s sentinel. |
A. | Medulla |
B. | Association area |
C. | Reticular formation |
D. | Limbic system |
Answer» D. Limbic system | |
385. |
The ________________ is the largest of the limbic system structures, plays animportant role in the acquisition of memories. |
A. | Hippocampus |
B. | Amygdala |
C. | Hypothalamus |
D. | Thalamus |
Answer» B. Amygdala | |
386. |
Damage to some areas of the ________________also impairs the ability torecognize the emotional content of facial expressions. |
A. | Hippocampus |
B. | Amygdala |
C. | Pons |
D. | Cerebrum |
Answer» C. Pons | |
387. |
When the body temperature drops, the _________________ causes blood-vesselconstriction or minute involuntary movements, commonly refer to as the “shivers”. |
A. | Hippocampus |
B. | Amygdala |
C. | Hypothalamus |
D. | Thalamus |
Answer» D. Thalamus | |
388. |
One groove called the _____________, divides each hemisphere vertically. |
A. | Cortex |
B. | Lateral fissure |
C. | Central sulcus |
D. | Brain stem |
Answer» D. Brain stem | |
389. |
In humans, the _________________ dwarfs the rest of the brain, occupying twothirds of its total mass. |
A. | Hypothalamus |
B. | Medulla |
C. | Cerebrum |
D. | Thalamus |
Answer» D. Thalamus | |
390. |
One groove called the _____________, divides each hemisphere horizontally. |
A. | Cortex |
B. | Lateral fissure |
C. | Central sulcus |
D. | Brain stem |
Answer» C. Central sulcus | |
391. |
The ______________ tends to be more analytical; processes information bit by bit. |
A. | Right hemisphere |
B. | Left hemisphere |
C. | Occipital lobe |
D. | Temporal lobe |
Answer» C. Occipital lobe | |
392. |
The _______________ tends to be more holistic; processes information withrespect to global patterns. |
A. | Right hemisphere |
B. | Left hemisphere |
C. | Occipital lobe |
D. | Temporal lobe |
Answer» B. Left hemisphere | |
393. |
______________ initiate, maintain and stop development of secondary sexual characteristics, influence levels of arousal and awareness, serve as the basisfor mood changes, and regulate metabolism. |
A. | Genomes |
B. | DNA |
C. | Endocrine |
D. | Hormones |
Answer» E. | |
394. |
The ___________________ is often called the master gland. |
A. | Thyroid gland |
B. | Pituitary gland |
C. | Adrenal gland |
D. | Pancreas |
Answer» C. Adrenal gland | |
395. |
In females, a pituitary hormone stimulates production of _____________, which is essential to the hormonal chain reaction that triggers the release of ova from awoman’s ovaries, making her fertile. |
A. | Androgen |
B. | Testosterone |
C. | Progesterone |
D. | Estrogen |
Answer» E. | |
396. |
Researchers refer to changes in the performance of the brain as _____________. |
A. | Plasticity |
B. | Excitatory |
C. | Spontaneity |
D. | Resonance |
Answer» B. Excitatory | |
397. |
________________ are unspecialized cells that, under appropriate conditions, canbe prompted to function as new neurons. |
A. | Ganglion |
B. | Genome |
C. | Stem cells |
D. | Nerve cells |
Answer» D. Nerve cells | |
398. |
The production of new brain cells from naturally occurring stem cells are called______________. |
A. | Agenesis |
B. | Neurogenesis |
C. | Plastic surgery |
D. | Brain imaging |
Answer» C. Plastic surgery | |
399. |
The hypothalamus maintains the body’s internal equilibrium, or ____________. |
A. | Plasticity |
B. | Excitatory |
C. | Homeostasis |
D. | Resonance |
Answer» D. Resonance | |
400. |
The actions of the body’s voluntary muscles are controlled by the______________, located just in front of the central sulcus in the frontal lobes. |
A. | Somatosensory cortex |
B. | Motor cortex |
C. | Cerebral cortex |
D. | Amygdala |
Answer» C. Cerebral cortex | |