Please Ensure That You Have Completed The Calculations In Tables 1-3 Before You Answer The Worksheet Questions Table 1. The effects of phentolamine and atropine on the contractile response to nerve stimulation (20 Hz) in the isolated rabbit ileum | |Contraction amplitude |Contraction amplitude with the |Effect of nerve stimulation on the contraction amplitude | | |pre-nerve stimulation |maximum response to nerve |
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Specialized membrane that lines the air distribution tubes in the respiratory tree (Figure 14-2) More than 125 mL of mucus produced each day forms a “mucous blanket” over much of the respiratory mucosa Mucus serves as an air purification mechanism by trapping inspired irritants such as dust and pollen Cilia on mucosal cells beat in only one direction‚ moving mucus upward to pharynx for removal NOSE Structure Nasal septum separates interior of nose into two cavities Mucous membrane lines nose
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The vocal folds are two bands of smooth muscle tissue located in the larynx (voice box). The larynx is located in the neck at the top of the trachea (windpipe). Vocal folds produce the sound of your voice by vibration and the air passing through the folds from the lungs. The sound the vocal folds produce is then sent through the throat‚ nose‚ and mouth‚ giving the sound "resonance." The sound of each individual voice is determined by the size and shape of the vocal cords and the size and shape of
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mphibiaAmphibia Digestive System: 1. The digestive system of frog is mainly includes the food catching organs‚ the alimentary canal and the digestive glands. 2. In the alimentary canal the processes of mastication‚ digestion and absorption take place‚ while the digestive glands secrete certain enzymes which bring about the digestion of the ingested food. Alimentary canal: 1. The alimentary canal of the frog is essentially a colied tube of varyihng diameter that extends from one of
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Histology and endocrinological function of the Juxtaglomerular apparatus Abbreviations used: DCT- Distal convoluted tubule‚ JGA-Juxtaglomerular apparatus‚ MD-Macula Densa‚ TGF-tubular glomerular feedback‚ NO-Nitric Oxide‚ NOS-Nitric Oxide Synthase The nephron‚ the functional unit of the kidney‚ is made of 2 parts: the renal corpuscle and the renal tubule. The renal corpuscle is composed of the glomerulus and Bowman’s capsule while the renal tubule extends from the Bowman’s capsule to the collecting
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Anatomy of the Female Reproductive System The reproductive role of the female is far more complex than that of a male. Not only must she produce gametes‚ but her body must prepare to nurture a developing embryo for a period of approximately nine months. Ovaries‚ the female gonads‚ are the primary reproductive organs of a female‚ and like the male testes‚ ovaries serve a dual purpose: They produce the female gametes (ova) and sex hormones‚ the estrogens * and progesterone (pro-ges′tĕ-rōn). The
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was sleeping when the fire started and managed to make her way out of the house through thick smoke. You are concerned about possible smoke inhalation. What assessment findings would corroborate this concern? • Cough ➢ When the mucous membranes of the respiratory tract get irritated‚ they secrete more mucus. ➢ Bronchospasm and increased mucus production lead to reflex coughing. ➢ The mucus may be either clear or black depending on the degree of burned particles deposited in
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| Help build the future of Wikipedia and its sister projects! Read a letter from Jimmy Wales and Michael Snow. | [Hide] [Help us with translations!] | DNA vaccine What is antisense technology? Antisense refers to opposing the normal order (“sense”) of the code in DNA. The DNA (deoxyribonucleic acid) in genes directs cells to assemble the proteins which comprise living creatures. The order of bases in DNA corresponds to the ordering of amino acids to form the proteins. To produce protein
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action potentials are propagated. 12-7 Describe the structure of a synapse‚ and explain the mechanism involved in synaptic activity. 12-8 Describe the major types of neurotransmitters and neuromodulators‚ and discuss their effects on postsynaptic membranes. 12-9 Discuss the interactions that enable information processing to occur in neural tissue. The Nervous System Includes all neural tissue in the body Neural tissue contains two kinds of cells Neurons Cells that send and receive signals
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separated into two categories prokaryotes and eukaryotes. Prokaryotes are typically found in unicellular organisms. They do not have a nucleus or nucleus bound organelles. Therefore their DNA‚ proteins‚ ribosomes and etc. are enclosed within the cell membrane‚ without any specific location. They reproduce by the process of binary fission. The two domains of organisms that contain these cells are bacteria and archae. Archae is a unicellular organism that grows in extreme environmental conditions‚ it is
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