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| 1 | |
Which of the following is correctly matched? |
| | A) | vertebrates - ventral solid nerve cord |
| | B) | cnidarians - nerve net |
| | C) | earthworm - dorsal hollow nerve cord |
| | D) | none of the above |
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| 2 | |
The ladderlike nervous system of a planarian is comprised of _____. |
| | A) | two lateral nerve cords |
| | B) | transverse nerve |
| | C) | both A and B |
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| 3 | |
Which of the following is a complex animal with a true nervous system? |
| | A) | sponge |
| | B) | hydra |
| | C) | squid |
| | D) | tapeworm |
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| 4 | |
The presence of _____ indicates an organism has cephalization. |
| | A) | a head |
| | B) | sensory cells |
| | C) | a concentration of ganglia |
| | D) | all of the above |
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| 5 | |
Which of the following has a dorsal hollow nerve cord in the central nervous system? |
| | A) | planarian |
| | B) | cow |
| | C) | crab |
| | D) | sponge |
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| 6 | |
Arthropods have a _____. |
| | A) | ventral nerve cord |
| | B) | dorsal nerve cord |
| | C) | nerve ladder |
| | D) | nerve net |
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| 7 | |
Organisms that are adapted to an active way of life are characterized by _____. |
| | A) | cephalization |
| | B) | bilateral symmetry |
| | C) | both A and B |
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| 8 | |
The central nervous system consists of a brain and a spinal cord. |
| | A) | True |
| | B) | False |
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| 9 | |
The _____ is highly developed in mammals, particularly humans. |
| | A) | forebrain |
| | B) | hindbrain |
| | C) | midbrain |
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| 10 | |
The nervous system integrates and controls the other systems of the body. |
| | A) | True |
| | B) | False |
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| 11 | |
The brain is at the _____ end of the dorsal tubular nerve cord. |
| | A) | anterior |
| | B) | posterior |
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| 12 | |
The _____ regulates organs below the level of consciousness. |
| | A) | forebrain |
| | B) | midbrain |
| | C) | hindbrain |
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| 13 | |
The central nervous system performs the integration of sensory input and initiation of motor output. |
| | A) | True |
| | B) | False |
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| 14 | |
The somatic system controls _____ |
| | A) | smooth muscle |
| | B) | skeletal muscle |
| | C) | the glands |
| | D) | cardiac muscle |
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| 15 | |
The autonomic system initiates the heartbeat. |
| | A) | True |
| | B) | False |
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| 16 | |
The autonomic system contains nerves that control smooth muscle. |
| | A) | True |
| | B) | False |
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| 17 | |
The sympathetic and parasympathetic systems are divisions of the _____ |
| | A) | somatic system |
| | B) | central nervous system |
| | C) | autonomic system |
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| 18 | |
Which of the following is/are part of the peripheral nervous system? |
| | A) | sciatic nerve |
| | B) | ulnar nerve |
| | C) | cranial nerves |
| | D) | all of the above |
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| 19 | |
The somatic and autonomic systems are composed of sensory fibers. |
| | A) | True |
| | B) | False |
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| 20 | |
Neuroglial cells have _____ functions. |
| | A) | supportive |
| | B) | nutritive |
| | C) | both A and B |
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| 21 | |
Dendrites conduct impulses away from the cell body. |
| | A) | True |
| | B) | False |
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| 22 | |
One of the main functions of the _____ is to manufacture neurotransmitters. |
| | A) | dendrites |
| | B) | cell body |
| | C) | axon |
| | D) | myelin sheath |
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| 23 | |
Nerve impulses are conducted toward the cell body by _____. |
| | A) | dendrites |
| | B) | axons |
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| 24 | |
Neurolemmocytes form the myelin sheath around axons in the central and peripheral nervous systems. |
| | A) | True |
| | B) | False |
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| 25 | |
The secretion of gastric juices by the stomach is stimulated by _____. |
| | A) | sensory neurons |
| | B) | interneurons |
| | C) | motor neurons |
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| 26 | |
A naked nerve ending is an example of a(n) _____. |
| | A) | sensory neuron |
| | B) | motor neuron |
| | C) | interneuron |
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| 27 | |
The neurons responsible for thinking, memory and language processes are _____. |
| | A) | sensory neurons |
| | B) | interneurons |
| | C) | motor neurons |
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| 28 | |
Interneurons are found ______. |
| | A) | in the CNS |
| | B) | in the PNS |
| | C) | both A and B |
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| 29 | |
During the resting potential, there is a higher concentration of _____ ions outside the axon. |
| | A) | iodine |
| | B) | hydrogen |
| | C) | calcium |
| | D) | sodium |
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| 30 | |
The inside of the neuron is more _____ than the outside during the resting potential. |
| | A) | negative |
| | B) | positive |
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| 31 | |
ATP is expended to maintain a concentration of Na+ outside the axon and K+ inside the axon during the resting potential. |
| | A) | True |
| | B) | False |
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| 32 | |
If a neuron is stimulated and threshold is not reached, _____ happens. |
| | A) | nothing |
| | B) | an action potential |
| | C) | saltatory conduction |
| | D) | repolarization |
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| 33 | |
During the refractory period, the nerve fiber cannot conduct an impulse. |
| | A) | True |
| | B) | False |
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| 34 | |
When threshold is reached, _____. |
| | A) | an action potential occurs |
| | B) | sodium channels open |
| | C) | the inside of the neuron becomes positive |
| | D) | all of the above |
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| 35 | |
The intensity of a message is determined by ______. |
| | A) | the intensity of the stimulation |
| | B) | the number of nerve impulses generated within a given time span |
| | C) | both A and B |
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| 36 | |
An action potential travels down a(n) _____ fiber faster. |
| | A) | unmyelinated |
| | B) | myelinated |
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| 37 | |
During repolarization, _____. |
| | A) | sodium channels open and sodium enters the axon |
| | B) | sodium and potassium channels remain closed |
| | C) | potassium channels open and potassium leaves the axon |
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| 38 | |
On myelinated fibers, an action potential occurs at one node and then jumps to the next node. |
| | A) | True |
| | B) | False |
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| 39 | |
Neurotransmitters _____. |
| | A) | are released by presynaptic neurons |
| | B) | are produced in the cell body |
| | C) | bind to receptors on the postsynaptic neuron |
| | D) | all of the above |
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| 40 | |
Acetylcholinesterase stimulates the postsynaptic neuron. |
| | A) | True |
| | B) | False |
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| 41 | |
Drugs that affect the nervous system ______. |
| | A) | can enhance of block neurotransmitter release |
| | B) | mimic the action of a neurotransmitter |
| | C) | interfere with the removal of a neurotransmitter from synaptic cleft |
| | D) | all of the above |
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| 42 | |
Integration is the summing up of _____ signals received by a postsynaptic neuron. |
| | A) | inhibitory |
| | B) | excitatory |
| | C) | both A and B |
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| 43 | |
Excitatory neurotransmitters _____. |
| | A) | stimulate signals that have a hyperpolarizing effect |
| | B) | produce signals that drive a neuron closer to an action potential |
| | C) | both A and B |
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| 44 | |
An inhibitory neurotransmitter produces signals that make the postsynaptic less likely to fire. |
| | A) | True |
| | B) | False |
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| 45 | |
The cell bodies of neurons are found in _____. |
| | A) | ganglia |
| | B) | the brain |
| | C) | the spinal cord |
| | D) | all of the above |
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| 46 | |
The cranial nerves all contain sensory and motor nerve fibers. |
| | A) | True |
| | B) | False |
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| 47 | |
The dorsal-root ganglion contains the cell body of a _____ neuron. |
| | A) | sensory |
| | B) | motor |
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| 48 | |
All spinal nerves contain _____ fibers. |
| | A) | sensory |
| | B) | motor |
| | C) | both A and B |
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| 49 | |
The muscle contraction that pulls your hand off the hot burner is initiated by _____. |
| | A) | the somatic system |
| | B) | the autonomic system |
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| 50 | |
Voluntary control of skeletal muscle responses originate in the _____. |
| | A) | spinal cord |
| | B) | brain |
| | C) | both A and B |
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| 51 | |
The "fight or flight" response is initiated by _____. |
| | A) | the sympathetic system |
| | B) | the parasympathetic system |
| | C) | both A and B |
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| 52 | |
The responses of the sympathetic nervous system are designed to direct more oxygen and glucose to active muscles. |
| | A) | True |
| | B) | False |
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| 53 | |
The parasympathetic nervous system _____. |
| | A) | increases the heartbeat |
| | B) | decreases the heartbeat |
| | C) | initiates the heartbeat |
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| 54 | |
Acetylcholine is a neurotransmitter used by the _____. |
| | A) | somatic motor pathways |
| | B) | sympathetic motor pathways |
| | C) | parasympathetic motor pathways |
| | D) | both A and C |
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| 55 | |
The effector(s) of the sympathetic and parasympathetic nervous systems is/are _____. |
| | A) | cardiac muscle |
| | B) | glands |
| | C) | smooth muscle |
| | D) | all of the above |
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| 56 | |
The precapillary sphincters of the digestive system shut off blood flow to the digestive system when the parasympathetic nervous system is active. |
| | A) | True |
| | B) | False |
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| 57 | |
Which of the following is associated with the sympathetic nervous system? |
| | A) | decreased blood pressure |
| | B) | increased perspiration |
| | C) | increased blood flow to the digestive system |
| | D) | decreased respiration |
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| 58 | |
When you're relaxing and watching TV your _____ system will be active. |
| | A) | sympathetic |
| | B) | parasympathetic |
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| 59 | |
Except for the vagus nerve, only spinal nerves make up the autonomic nervous system which controls the internal organs. |
| | A) | True |
| | B) | False |
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| 60 | |
The brain and spinal cord are wrapped in protective membranes called the pleural membranes. |
| | A) | True |
| | B) | False |
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| 61 | |
Cell bodies and short unmyelinated fibers comprise the _____ of the spinal cord. |
| | A) | gray matter |
| | B) | white matter |
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| 62 | |
The right side of the brain controls the right side of the body and the left side of the brain controls the left side of the body. |
| | A) | True |
| | B) | False |
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| 63 | |
The right and left hemispheres of the cerebrum are connected by the _____. |
| | A) | meninges |
| | B) | thalamus |
| | C) | corpus callosum |
| | D) | cerebellum |
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| 64 | |
The _____ is responsible for muscle coordination. |
| | A) | cerebellum |
| | B) | cerebrum |
| | C) | medulla oblongata |
| | D) | pons |
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| 65 | |
The pituitary gland serves as a link between the nervous and endocrine systems. |
| | A) | True |
| | B) | False |
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| 66 | |
Centers for regulating hunger, sleep, thirst, body temperature, water balance and blood pressure are found in the _____. |
| | A) | cerebrum |
| | B) | pons |
| | C) | hypothalamus |
| | D) | medulla oblongata |
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| 67 | |
Which of the following is not associated with the brain stem? |
| | A) | pons |
| | B) | fourth ventricle |
| | C) | medulla oblongata |
| | D) | cerebellum. |
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| 68 | |
You may be able to study with the TV on because your reticular formation filters out unnecessary sensory information. |
| | A) | True |
| | B) | False |
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| 69 | |
The largest part of the brain in humans is the _____. |
| | A) | cerebrum |
| | B) | thalamus |
| | C) | medulla oblongata |
| | D) | cerebellum |
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| 70 | |
The cerebrum _____. |
| | A) | initiates voluntary skeletal muscle reactions |
| | B) | performs higher thought processes required for learning and memory |
| | C) | coordinates the activites of the other parts of the brain |
| | D) | all of the above |
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| 71 | |
Reflex centers for vomiting, coughing, sneezing, hiccuping, and swallowing are located in the _____. |
| | A) | cerebrum |
| | B) | hypothalamus |
| | C) | medulla oblongata |
| | D) | spinal cord |
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| 72 | |
The function of the cerebrum is the same in all vertebrates. |
| | A) | True |
| | B) | False |
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| 73 | |
The ability of humans to think critically and formulate appropriate behaviors is dependent of the _____ lobe of the cerebrum. |
| | A) | occipital |
| | B) | frontal |
| | C) | parietal |
| | D) | temporal |
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| 74 | |
Which of the following is incorrectly matched? |
| | A) | primary visual area - occipital lobe |
| | B) | auditory association area - temporal lobe |
| | C) | motor speech area - frontal lobe |
| | D) | primary taste area - frontal lobe |
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| 75 | |
The limbic system maintains homeostasis. |
| | A) | True |
| | B) | False |
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| 76 | |
The _____ adds emotional overtones to memories. |
| | A) | pons |
| | B) | cerebellum |
| | C) | thalamus |
| | D) | amygdala |
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| 77 | |
The cerebral cortex is more convoluted in humans than other vertebrates. |
| | A) | True |
| | B) | False |
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| 78 | |
Long-term memory involves _____. |
| | A) | episodic memory |
| | B) | semantic memory |
| | C) | both A and B |
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| 79 | |
A gradual extinction of brain cells in the hippocampus appears to be the underlying cause of Alzheimer disease. |
| | A) | True |
| | B) | False |
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| 80 | |
The body's production of endorphins decreases with heroin use. |
| | A) | True |
| | B) | False |
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