
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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What do you think would happen if you stimulated an axon in its middle rather than at the axon hillock? Explain your reasoning.
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- How does one neuron communicate with the next cell through chemicals? Synapse Presynaptic vs. postsynaptic neuron Electrical vs. chemical synapsearrow_forwardImagine you are studying the activity of neurons in a mouse that is awake and interacting with other mice. If you knew that an excitatory post-synaptic potential (EPSP) occurred, you _______ predict whether it would increase or decrease the likelihood of a particular behavior The neurons you are studying could be releasing ___________ because it is the major excitatory neurotransmitter in the brain that generally depolarizes postsynaptic neurons. If you wanted to study what happens when neurons are unable to make this particular neurotransmitter you could use ___________, which is a method that prevents your gene of interest from being translated. Group of answer choices A) Could not; GABA; Electron microscopy B) Could; Glutamate; Anterograde tracing C) Could; GABA; Immunohistochemistry D) Could not; Glutamate; Antisense oligonucleotidesarrow_forwardYou are studying a cross-sectional tissue slice of a nerve using a transmission electron microscope. You find an area where there appears to be a small amount of cytoplasm surrounded by about 100 layers of stacked cell membranes. You conclude that you have found a neuron cell body. O a synapse. an unmyelinated axon. O a myelinated axon.arrow_forward
- A pin can be pressed against the skin lightly and elicit no response from the pain receptor how ever, if this pain is jabbed into the finger, the pain receptor may be stimulated and the finger would quickly be withdrawn through a reflex arc. use what you know about threeshold potential and the all-or-none principle to explain different levels of sensation (light touch or pain)arrow_forward1) The interior of an axon at rest is negatively charged relative to the outside is positively charged relative to the outside has the same charge as the outside has the same concentration of potassium (K+) as the outside 2) The branch-like portions of a neuron that carries information toward the cell body is the axon. dendrite. terminal button. soma.arrow_forwardThe neuron activated in a candlelit room is called a ___.arrow_forward
- Which of the following statements best describes the axonal projection patterns of upper motoneurons located in the primary motor cortex? Upper motoneurons located in the primary motor cortex are cholinergic and their axons project directly to muscle fibres to control voluntary muscle movements. Upper motoneurons located in the primary motor cortex are glutamatergic and their axons project to the thalamus, brain stem and directly to muscle fibres to control voluntary muscle movements. Upper motoneurons located in the primary motor cortex project to the spinal cord where they synapse with cholinergic lower motoneurons that control voluntary muscle movements. Upper motoneurons located in the primary motor cortex project to neurons in the cerebellum, thalamus and brain stem that in turn contact lower motoneurons in the spinal cord to control voluntary muscle movements.arrow_forwardA neuron releases an excitatory neurotransmitter. Some neurons are stimulated and some are not. How is it possible that the same signal activates one neuron and not the other?arrow_forward1) After the ___________ is reached, the __________ begins. action potential ; resting potential repolarization ; action potential threshold of excitation ; action potential hyperpolarization ; threshold of excitation 2)Scientists can be affected by motivated reasoning, even if they follow all of the steps of the scientific method. True False 3) What research method invented by Wilhelm Wundt is still influential to cognitive psychology Functionalism Animal model of psychology Structuralism Reaction timearrow_forward
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