Exam 16: Sensory, Motor, and Integrative Systems

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Compare short-term memory versus long-term memory with regard to specific changes that are thought to occur in the brain.

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Short-term memory depends more on electrical and chemical events in the brain than on structural changes,such as forming new synapses.Long-term memory is thought to involve high-frequency stimulation within the hippocampus at glutamate synapses.Nitric oxide and other neurotransmitters may also be involved.For long term memory,neurons develop new presynaptic terminals,larger synaptic end bulbs,and more dendritic branches.

[dropdown 1] motor neurons innervate [dropdown 2] muscle fibers,which are specialized muscle fibers within a muscle spindle necessary for fine motor control. Dropdown 1 choices: Alpha Beta Gamma Delta Dropdown 2 choices: extrafusal intrafusal

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1.gamma
2.intrafusal

Sensory neurons in the muscle spindle are activated during muscle [dropdown 1].Activation of gamma motor neurons in the muscle spindle cause [dropdown 2] of intrafusal muscle fibers. Dropdown choices: muscle contraction muscle stretch

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1.muscle stretch
2.muscle contraction

During the process of learning,the brain shows a characteristic called _____,which is the ability to change in response to intensive usage for a particular task like memorizing a page of physiology notes.

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[dropdown 1] carry afferent signals from the sensory receptor to the CNS.[dropdown 2] carry afferent signals from the thalamus to the cerebral cortex.[dropdown 3] carry sensory information from the CNS to the thalamus. Dropdown choices: First order neurons Second order neurons Third order neurons Preganglionic neurons Motor neurons Postganglionic neurons Efferent neurons

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____ would detect irritation on the skin if you didn't wear gloves while cleaning with bleach.

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Dancers being aware of their body position when they are in the air is

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Which of the following stages of non-rapid eye movement (NREM)sleep is considered the deepest level of sleep?

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Which structure monitors the stretching of skin during a physical therapy session? Which structure monitors the stretching of skin during a physical therapy session?

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An individual with damage to their hippocampus may struggle with

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In the trigeminothalamic pathway,first-order neuron's cell bodies are located in the

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Loss of dopamine production in the caudate nucleus is associated with

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The integration centers for sensations that are consciously perceived (like vision,smell,taste,and pain)are found in the

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Corticospinal pathways that decussate in the [dropdown 1] form the [dropdown 2].Corticospinal pathways that do not decussate form the [dropdown 3]? Dropdown 1 choices: Medulla oblongata Pons Thalamus Midbrain Dropdown 2&3 choices: Anterior corticospinal tract Indirect motor pathway Lateral corticospinal tract

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Which of the neurons in the diagram would most likely pick up an itch sensation? Which of the neurons in the diagram would most likely pick up an itch sensation?

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Which structure in the diagram is sensitive to low vibrational frequencies and typically located in areas that lack hair? Which structure in the diagram is sensitive to low vibrational frequencies and typically located in areas that lack hair?

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If spinal cord injury occurred to the spinothalamic tract,

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The postcentral gyri of the parietal lobes of the cerebral cortex

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The [dropdown 1] conveys impulses for pain,temperature,tickle and itch.The [dropdown 2] conveys impulses for conscious proprioception,pressure and vibration from the lower half of the body,while the [dropdown 3] conveys the same impulses from the upper half of the body.The [dropdown 4] conveys impulses for subconscious proprioception. Dropdown choices: cuneate fasciculus gracile fasciculus spinothalamic tract spinoreticular tract spinocerebellar tract trigeminothalamic tract

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Describe the role of the reticular activating system in sleep,arousal,and consciousness.

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