Cystoscopies one of theinstruments that used the IRlight to illuminate and examinethe air passages into lungs.TrueFalseThe parts of the neuronspecialized for receivinginformation from stimuli orfrom other cellsThe AxonCell BodyThe dendritesO Axon Terminal

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Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Events in Visual Perception Potassium channels open. Potassium ions move out of the neuron. Some sodium channels open in the neuronal membrane of the dendrite. All ion channels close and the Na+/K+ exchange pump starts working. Some sodium ions diffuse into the neuron membrane of the dendrite. Lights hit the retina. The threshold level is reached at the neuronal membrane of the dendrite. The remaining sodium channels open. Sodium ions move into the neuron. List, in order, the events in visual perception that must occur for a person to see an object:
Which type of channel underlies sound transduction? Mechanically-gated Na channels O Mechanically-gated K channels Photosensitive Ca channels O Ligand-gated Na channels Ligand-gated K channels
Glial cells take care of neurons. Review the different types of glial cells by matching each description with the appropriate cell. You may use answers more than once. 1. Wrap around axons in the CNS: 2. Wrap around axons in the PNS: 3. Regulate exchange of substances with capillaries and control interstitial space: 4. Surround, regulate, and protect cell bodies of neurons in the PNS: 5. Tiny macrophages that engulf unwanted substances and keep the CNS "clean": 6. Provide a supportive network: 7. Help produce cerebrospinal fluid at choroid plexus:
The crista ampullaris: Amplifies the sound waves received by the tympanic membrane Is responsible for dynamic equilibrium Helps the body maintain equilibrium if there are position changes due to gravity such as leaning, standing, or lying down Bends hair cells which are the mechanoreceptors in the organ of Corti
Your nerves are unusually fast at sending signals from one nerve to the next nerve or from the nerve to the muscle. A special, fatty covering helps to ensure that the electrical signals move quickly along the neuron. What is the tubular structure of the neuron covered by this special fatty covering?
True or false? Pain perception takes place before reaching the thalamus.
True or False: The areas of cortex devoted to processing information from the fovea are larger than those devoted to processing information from the periphery, which is another reason why images projected on the fovea are seen in great detail.
How the ability to hear relies on vibration
Nervous System Revew Thalamus Senses smellI Site of visceral function (eg body temp) controls Sensation Hypothalamus Provides precise timing and skeletal muscle contraction Cranial Nerve I Conscious interpretation of environmental stimuli Cerebellum Awareness of changes in environment Perception Sorts, edits, and relays info to cerebral cortex
You're relaxed, watching television. Dinner is served - all that turkey, stuffing, potatoes, gravy, pumpkin, and more. You sit down to the table and start to dig in. As you begin to overindulge, the smooth muscle of your stomach starts to contract (intrinsic innervation) which is not part of the CNS. Your extrinsic innervation also starts to kick in - which is a CNS response of the Autonomic Nervous System. As you continue to eat the warm, moist delicious turkey, every time you swallow the smooth muscle of the stomach and duodenum relax to prepare to receive the food. You're now on your 72nd swallow of food and feeling a tad bit full. What kind of innervation do you think is involved in your sensation of "full"?

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the air passages into lungs. True False The parts of the neuron specialized for receiving information from stimuli or from other cells The Axon Cell Body The dendrites Axon Terminal