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Terms in this set (22)
In the central nervous system, signals travel along ____ nerves to the effector
What do Wernicke's and Broca's regions of the brain affect?
Which if the following is responsible for signaling the endocrine system to produce hormones secreted by the pituitary gland?
The division of the autonomic nervous system that acts in times of emergency is the
Place these events in the order in which they would occur in a person who uses an addictive drug.
I. To maintain homeostasis, the brain reacts to a flood of dopamine by lowering the number of dopamine receptors
II. The molecules if dopamine bind to receptors, causing feelings of pleasure
III. It becomes difficult for the person to feel normal without the drug
IV. A flood of the neurotransmitter dopamine i released into the brain's synapse
IV, II, I, III
Assume that excessive consumption of ethanol increases the influx of negative chloride ions into "common sense" neurons whose action potentials are needed for you to act appropriately and not harm yourself or others. Thus, any resulting poor decisions associated with ethanol ingestion are likely due to
Less action potentials in your "common sense" neurons
The primary function of the sensory division of the peripheral nervous system is transmit impulse
From receptors (sense) organs to the central nervous system
What is the difference between afferent and efferent neurons?
Afferent nerves carry sensory information from the body to the brain; efferent nerves send signals from the brain to the glands and muscles
Wakefulness is regulated by the reticular activating system (RAS)
Which statement is true of the functioning of the autonomic nervous system?
All statements are correct
Which of the following statements is NOT true in regards to the blood brain barrier?
Allows the body's immune system to enter into the brain
cerebrospinal fluid can be described as all of the following except
formed from layers of connective tissue
In order to initiate an action potential in a neuron, the neuron's cell membrane must reach
Spinal nerves are parts of the:
Which system controls smooth and cardiac muscles of the digestive, cardiovascular, and excretory systems
autonomic nervous system
Vision is interpreted in the
For a person who writes with their left hand, the muscles involved in writing are controlled by
The right hemisphere of the cerebrum
The white matter of the central nervous system is white as a result of
Neurons being surrounded by myelin
The "threshold" potential of a membrane
Is the minimum stimulus needed to operate the ion channels creating an electrochemogradient
When an impulse reaches the end of a neuron, it triggers the release of
The areas of the brain involved in controlling involuntary body actions like blood pressure and breathing is the
When Phineas Gage had a metal rod driven into his frontal lobe, or when someone had a frontal lobotomy, which of the following occurred?
They had different emotional responses
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