Cardiovascular System: Intrinsic Conduction System 1. The intrinsic conduction system consists of __autorhythmic____ __cardiac__ cells that initiate and distribute __impulses_____ throughout the heart. 2. The intrinsic conduction system coordinates heart activity by determining the direction and speed of ____heart depolarization____. This leads to a coordinated heart contraction. 3. List the functions for the following parts of the intrinsic conduction system: a. SA node _sets the pace for the
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Name________Amanda Fox BIO 23500-60________ BIO 235 Chapter 10 –Nervous System I 1) Define the following word parts. Ax-‚ axle: axon – cylindrical nerve process that carries impulses away from a neuron cell body. Dendr-‚ tree: dendrite – branched nerve process that serves as the receptor surface of a neuron. Funi-‚ cord‚ rope: funilicus – funiculi of spinal cord or bundle of nerve fibers. Gangli-‚ knot: ganglia – deliver information to the body -lemm‚ rind or peel: neurilemma – sheath
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by binding to muscarinic cholinergic receptors‚ which activate G-proteins and opens potassium channels known as hyperpolarisation‚ while closing sodium and calcium channels (Pal and Pal‚ 2006). The action of acetylcholine in inhibiting impulse formation‚ conduction and in weakening auricular contraction‚ exhibits a stimulating effect‚ particularly on the ventricle (McDowall‚
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Nutrient | Nutrient Source | Importance/Function | Solubility | Deficiency | In Abundance | Vitamin A | Liver ‚cod liver oil‚ carrots‚ spinach‚ sweet potatoes‚ peaches and cantaloupe. | * Growth and maintenance of epithelial tissue including the cornea‚ membranes of gastrointestinal tract and skin. * Nerve formation and function | Fat Soluble | In children‚ growth retardation‚ and impaired bone formation. Fetal malformations. | Fetal malformations | Vitamin B2 | Beef‚ liver‚ lean meat
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EKG Rhythm Interpretation How to Analyze a Rhythm All MIHS hospital nursing staff must complete an EKG test with a score of at least 80% upon hire. All hospital RNs are tested annually. This includes recognizing the rhythms‚ measuring the intervals‚ and knowing the appropriate treatment/algorithm according to American Heart Association. This is basic ACLS/PALS information‚ nothing new. In addition to this study packet‚ there are multiple websites that can be accessed on the
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Part 1 of 17 - 1.67/ 5.0010004 Points Question 1 of 60 0.0/ 1.667 Points All of the following belong to feedback systems which control homeostasis EXCEPT A. All of the above are basic components of the feedback system. B. control center. C. receiver. D. receptor. E. effector. Answer Key: C Feedback: Please review chapter 1. Question 2 of 60 0.0/ 1.667 Points Group of related organs that have a common function is called a(n) A. organ.
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The heart beats to fast‚ heart rate increases. The heart beats sluggishly‚ heart rate decreases. However‚ in the process of how the heart beats‚ more specific problem is differentially diagnosed. To be able to view the actual electrical conduction and heart contraction process that may lead us to the specific problem of the patient‚ a machine that reflect the electrical functioning of the heart is needed. That is why the electrocardiogram or ECG (others‚ EKG) existed. An Electrocardiograph
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the neurological exam‚ electromyography‚ nerve conduction velocity test and nerve biopsy. The neurological exam is a process where in the patient goes through a series of simple and painless examinations. It primarily evaluates the functioning of the neurological system‚ which includes autonomic nervous functioning‚ muscle strength and the sensory reactions. Electromyography tests the electrical activity of the muscle‚ checking whether or not the impulses are transferred promptly back and forth between
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Drugs and the nervous system Neurotransmitters within the body include excitatory and inhibitory‚ noradrenalin‚ dopamine‚ serotonin; acetylcholine and glutamate are examples of excitatory neurotransmitters. GABA and glycine are examples of inhibitory neurotransmitters. General anaesthetics General anaesthetics act mainly on the central nervous system to stop information processing; these may be given by inhalation or intravenously. Nitrous oxide or laughing gas is used in maintain anaesthesia
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Site Plan | I. Neurons/nerve cells A neuron is a cell specialized to conduct electrochemical impulses called nerve impulses or action potentials. Neuron is the main cellular component of the nervous system‚ a specialized type of cell that integrates electrochemical activity of the other neurons that are connected to it and that propagates that integrated activity to other neurons. They are the basic information processing structures in the CNS.
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