Physiology Chooljian Lecture Exam #3 Review FIRST: Be sure to: Study chapter objectives‚ summaries‚ and reviews Review your lecture notes ANS Define: denervation hypersensitivity‚ ganglia‚ mass activation‚ sympathoadrenal system‚ dual innervation. What are the two divisions of the ANS? Where are the neurons for each division located‚ and what is the major function of each division? What type of neurons (sensory or motor) are in the ANS? What are the names for the two
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appearance:Your hair‚ your nails‚ and the outer layers of your skin are made of the protein keratin. Keratin is ascleroprotein‚ or a protein resistant to digestive enzymes. So if you bite your nails‚ you can’t digest them.Muscle tissue contains myosin‚ actin‚ myoglobin‚ and a number of other proteins.Bone has plenty of protein. The outer part of bone is hardened with minerals such as calcium‚ but the basic‚ rubbery inner structure is protein; and bone marrow‚ the soft material inside the bone‚ also contains
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eucaryotes) evolutionary model emerged from studies of the sequence of non coding RNA (t-RNA & r-RNA) 5. Capable of autonomous relication Prokaryotes show the greatest biochemical diversity Animal cell: Dormant Fibroblast ( know structures of cell) Actin filaments- cell shape and motility Microtubules- vesicle delivery and mitosis Intermediate filament- mechanical stability Eukaryotes sequester DNA into a nuclear compartment 1. Regulates access to DNA 2. DNA replication 3. Transcrription Endomplasmic
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RACHEL What is strategy? Strategy is the ideas‚ decisions‚ and actins that enable a firm to succeed. What strategic problems does Robin Hood have? Robin Hood is the leader of the band which was growing in size; he is not on the same side as the sheriff of Nottingham who happens to have the power to take over his band of Merrymen and has high connections in that land. And since Robin Hood is in charge of his men‚ he needs to be sure they have money. He is low on funds and does not know what
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calcium current into cells‚ decrease calcium efflux from cells‚ increase cellular permeability to calcium‚ or decrease sarcoplasmic reticulum reuptake of intracellular released calcium. Intracellular accumulation of calcium causes the activation of actin-myosin contractile proteins‚ which enhanced vascular tone and total peripheral
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Lab 4 – The Cell Answer Key Procedure 4.3 Draw a picture of a single Elodea cell and label all visible structures. See the diagram in your lab manual. Without staining‚ the only structures that should have been clearly visible should have been the cell walls and the green chloroplasts. Is this cell prokaryotic or eukaryotic? ______Eukaryotic_______________________ What evidence do you have to support this claim? The presence of organelles (chloroplasts) and its large size.
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1. Why do we need a cardiovascular system? Because we need to get oxygen through our system. 2. Make sure you know which circuits the left and right heart pump into (pulmonary or systemic). Also know the status of blood (fully oxygenated or not) at -the aorta: Left‚systematic‚ and fully oxygenated. -a pulmonary vein: Left side‚ pulmonary‚ and fully oxygenated. Goes from the right side of the body(heart) into the (left) pulmonary veins then goes to the left atrium then to the left ventricle then
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organelles within the membrane. | Carries required nutrients like salts‚ minerals and organic molecules. Cytoplasmic streaming. | Cytoskeleton | Both | Network of thin fibres made of microtubules (hollow tubes) and microfilaments (threads made of protein actin). | Support system for organelles. Maintains the shape of the cell. | Vacuoles | Both | Plants have a large central vacuole. Animal cells have smaller ones. | Used to store nutrients and water in the cell. | Vesicles | Both | Similar structure
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each pole.” [2] In Telophase the chromosomes has reached poles and the microtubules disappear. Nuclear envelopes also become evident around chromosomes and the cell begins to divide. A process called Cytokinesis splits the cells cytoplasm where an actin contractile ring tightens the middle region of the cell. This then develops two separate yet identical daughter cells‚ “the spindle fibres disintegrate‚ nuclear envelops are formed around the chromosomes in each cell and the chromatin returns to its
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Muscle contractions tend to be smooth and vary in strengths‚ depending on the demands placed on them. The variations of strength are called graded muscle responses. There are two ways a muscle contraction can be graded‚ either by changing the frequency of stimulation or by changing the strength of the stimulation. When a muscle is responding to a change in stimulus frequency‚ the nervous system will reach a greater muscular force when increasing the firing of motor neurons. This causes a wave or
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