Body Structures & Functions
12th Edition
ISBN: 9781285695495
Author: Scott
Publisher: Cengage
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What component of control mechanism produces a response in the body?
Group of answer choices
stimulus
control center
receptor
effectors
If a person is given an experimental drug, which response would indicate that this drug is an norepinephrine/epinephrine agonist?
decreased blood pressure
pupil constriction
constriction of respiratory airways
high blood sugar (hyperglycemia)
decreased heart rate
When they are not being stimulated, neurons have an electrical charge across their membranes called the resting potential. This potential is______ charged inside. When a neuron receives a sufficiently large stimulus, and reaches a potential called the_______ , it produces an action potential. This causes the neuron to become_____ charged inside.
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following correctly describes a stretch reflex such as the knee jerk reflex? Group of answer choices Monosynaptic Voluntary control Activated by stimulation of the Golgi tendon organ Contralateral stimulation and muscle effectarrow_forwardIf the nervous system finds a particular pathway is inaccessible, it will: Continue to use that pathway to send messages to and from other parts of the body. Try to find or create a new pathway to send the signal to or from other parts of the body. Use the muscles to send a signal without the use of the nervous system. None of the above.arrow_forwardThis is a type of signal in the brain that changes when we do an action/movement or when we see someone else do an action/movement:arrow_forward
- Which of the following is a substance in the body that facilitates the transmission of pain signals? A) Histamine B) Prostaglandin C) Serotonin D) All of the abovearrow_forwardWhich of the following defines the interneurons? Neurons that are excited by a specific environmental stimulus such as light or touch Neurons that serve as relay stations, receiving and transmitting signals between other neurons Neurons that control muscles and glandsarrow_forwardNumber the events of a reflex arc from 1 (first event) to 5 (last event). CNS sends output via motor neurons to an effector Sensory neurons bring the stimulus to the CNS The muscle contracts CNS processes and integrates the information Sensory receptor detects the stimulusarrow_forward
- Reaction to pain includes all the following, except :-a- increased heart rateb- depressionc- withdrawal reflexesd- stoppage of impulse discharge from nociceptors in chronic painful conditionsarrow_forwardThe information travels from one nerve cell to the next in the form of neurotransmitters antigens electricity potassium hormonesarrow_forwardDescribe how the nervous system helps different parts of your body communicate with one another the moment you begin to pet a dog.arrow_forward
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