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What neural system is primarily activated when a book is dropped into your outstretched hands with your eyes open?
a. Feedback processing controlled by lower motor neurons in the spinal cord.
b. None of the answers.
c. Modulation of onset responses controlled by the basal ganglia.
d. Motor coordination controlled by the cerebellum.
e. Feedforward processing controlled by upper motor neurons in the brainstem.
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- Sensory neurons transmit information towards the central nervous system. Which of the following is true concerning the movement of peripheral- information towards the central nervous system? A. Dendrites of the sensory neurons synapse with interneurons of the spinal cord. B. Axons of the sensory neurons synapse with motor neurons of the muscles involved in the spinal reflex. C. Axons of the motor neurons synapse with the interneurons of the spinal cord. D. Axons of the sensory neurons synapse with the interneurons of the spinal cord.All of the following are true regarding the descending motor tracts EXCEPT which one? A. They originate in either the cerebral cortex or brainstem. B. The pathways are generally made of a two-neuron system. C. The upper motor neuron fibers target lower motor neurons of the spinal cord or cranial nerves. D. They are involved in assisting with voluntary movement.The motor system is organized differently in the spiral cord compared to the cortex. Choose the statement below that best describes the difference. a. Alpha motor neurons in the ventral horn are mapped according to muscle location, while cortical motor neurons are organized into purposeful movement groups. b. None of the answers. c. Alpha motor neurons in the ventral horn have a different segment-to-segment organization, while cortical motor neurons are mapped similarly to the somatosensory system. d. Alpha motor neurons in the ventral horn do not have a clear organization, while cortical motor neurons are mapped according to muscle location. e. Alpha motor neurons in the ventral horn are organized into complex movement groups, while cortical motor neurons have no clear organization.
- The neural pathway in figure 3 relays impulses that terminate at the: a. Motor cortex b. Occipital lobe c. Somatosensory cortex d. Parietal lobe e. Receptors f. Skeletal muscle g. Temporal lobeWhich of the following is NOT a reason why a reflex arc is faster than a normal nerve transmission? a. A reflex arc stimulates the motor neurons for an immediate reaction. b. A reflex arc does not send information to the brain to be processed. c. A reflex arc does not involve neurotransmitters. d. A reflex arc involves fewer neurons.Which of the following statements is true about the connections between motor cortex and subcortical areas such as the basal ganglia? e. All of them c. There are unique reciprocal connections between cortical and subcortical regions and each of these loops make a different contribution to behavior a. The connections from subcortical areas to the motor cortex are through the thalamus. b. There are no direct connections from the subcortical areas to the spinal cord. d. a. and c. only.
- The subdivision of the brain that does not initiate somatic motor movements, but rather coordinates and fine-tunes those movements, is the a. medulla oblongata. b. cerebrum. c. cerebellum. d. diencephalon.What is the target of an upper motor neuron?a. cerebral cortexb. lower motor neuronc. skeletal muscled. thalamusNOTE THESE ARE ALL ONE QUESTION GROUP AND SHOULD BE ANSWERED AS SUCH Activation of the sympathetic nervous system __________________. A. increases the flow of watery saliva B. stimulates peristaltic contractions of the intestinal system C. allows the body to relax rather than prepare for fight or flight D. slows heartbeat and lowers blood pressure E. causes the pupils to dilate The autonomic subdivision of the vertebrate nervous system innervates all but which of the following? A. Skeletal muscles B. Intestinal muscles C. Liver D. Heart E. Pancreas The sympathetic nervous system includes the _______________. A. lumbar and sacral nerves B. cranial and sacral nerves C. cranial and thoracic nerves D. thoracic and lumbar nerves E. cervical and lumbar nerves Which of the following statements accurately defines spinal nerve? A. Cell in the deep part of the epidermis that produces the…
- Which of the following is correct? tertiary neurons found by:- a. extending between the posterior horn and anterior horn b. extending between the posterior horn and the brainstem c. extending between the thalamus and the primary somatosensory cortex d. extending between the primary motor cortex and brainstemWhat does the neuron composition of the dorsal root ganglion tell you about sensory coding in the somatosensory system? a. The large axon sizes have a slower conduction velocity than small axon sizes. b. The uniform axon sizes for all neurons indicate that they have the same conduction velocity. c. Multiple modalities or sensations can be detected from the skin. d. Only a single modality or sensation can be detected from the skin. e. Processing must occur directly in the skin since the neurons in the dorsal root ganglion are second order neurons.There are major reciprocal connections between the mediodorsal nucleus of the thalamus and the a. Frontal lobe b. Parietal lobe c. Temporal lobe d, Occipital lobe