Nervous System Terms Answers

What are components of the CNS? Check all that apply.

✔ neuronsnervessynapsesdendrites

tractsX neurons✔ gangliaaxons

neurons✔ axonstractsganglia

ganglia in the PNS✔ axons in the CNSmotor neuronssensory neurons

Use the drop-down menus to complete the sentences. Sensory neurons are neurons that collect sensory information and send it to the for processing. Ganglia are clusters of . A plexus is a group of interconnected that enable different parts of the PNS to communicate and connect with their target destinations. A nerve is a large bundle of that is wrapped in a protective sheath. A tract is a large bundle of that is not wrapped in a protective sheath.

Use the drop-down menus to complete the sentences. The sensory nervous system is the portion of the PNS that gathers sensory information and sends it to the . The somatic nervous system is the portion of the PNS that controls . The autonomic nervous system is the portion of the PNS that controls the . The peripheral nervous system is the portion of the nervous system outside the and vertebral canal.

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Use the drop-down menus to complete the sentences. Neuro and psycho are forms of root words. Psych is a root word that means “ .” Neur is a root word that means “ .”

Use the drop-down menus to complete the sentences. A neurotransmitter is a used by a neuron to transmit a signal to another neuron. A dendrite is the part of the neuron that stretches outward and . A neuron is the basic cell of the nervous system that is specialized for . Receptor sites are locations on a(n) to which neurotransmitter molecules attach, resulting in the generation of .

Use the drop-down menus to complete the sentences. A synapse is the small between the dendrite of one neuron and the axon terminal of another, across which the neurotransmitter flows to propagate a signal. An action potential is a(n) sent by a neuron down its axon to stimulate the release of neurotransmitter by the axon terminal. An axon is the long extension that connects a neuron’s dendrite with its . An axon terminal is the part of a neuron that is opposite from the , which is responsible for sending signals to the neighboring neurons. Myelin is a protective coating that surrounds and insulates to enable them to transmit signals.

Use the drop-down menus to complete the sentences. The cerebellum is the portion of the brain that controls coordination, muscle tone, and . The cerebrum is the portion of the brain that controls memory, thought, speech, the senses, and . The brain stem is the portion of the brain that controls and connects the brain with the .

Use the drop-down menus to complete the sentences. Mania is an abnormally mental state characterized by changes in mood, activity, and energy. Depression is a(n) mood. An anxiety disorder is characterized by excessive worry and . Bipolar disorder is characterized by cycles of . Mental health is the state of a person’s and psychological well-being.

Use the drop-down menus to complete the sentences. Alcohol dependence is a disease characterized by the mental and physical need to consume alcohol, social and occupational impairment, and potentially life-threatening . Withdrawal is a constellation of physical and emotional signs and symptoms that may result when a substance or process to which one is addicted is . Alcohol withdrawal is a set of signs and symptoms seen when alcohol is withheld from someone with alcohol dependence. It is characterized by , which may include hallucinations, seizures, and death. Addiction is a compulsive dependence on a(n) .

Use the drop-down menus to complete the sentences. Meninges are a tough, layered protective tissue that surrounds and protects the . The vertebral column is a flexible bony structure that houses the . The skull is the bony covering that protects the . Vertebrae are the bones that make up the . Cerebrospinal fluid is a protective fluid that lies between the and the underlying brain or spinal cord.

Use the drop-down menus to complete the sentences. Motor neurons are the neurons that carry signals from the brain to the , enabling voluntary movement. The corticospinal tract is a tract of neurons that descends from the , crosses over in the brain stem, and then connects with motor neurons in the spinal cord. The spinal cord is nervous tissue that connects the brain to the . The cranial nerve is a nerve that connects to the CNS at the rather than at the spinal cord. The primary motor cortex is the region of the that controls the voluntary muscles on the opposite side of the body.

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