4015 Lab – PNS‚ Spinal Cord and Spinal Reflexes Activity 1 – Nerves Type the numbers‚ in the space provided‚ of the structures pointed out on the diagram of a cross section of a nerve in your lab book with the following terms: 6 axon 12 endoneurium 1 epineurium 2 fascicle 7 motor ending 10 myelin sheath 9 neurilemma 11 node of Ranvier 3 perineurium 5 peripheral nerve 8 Schwann cell 4 sensory receptors What is the difference between a nerve and a neuron? They are both completely
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Classifications of reflexes A) Primitive reflexes and genetic sub-programs 1. Reflex responses to light touch: Light touch produces a variety of reflex responses‚ depending upon the area stimulated and the age of the individual. The motor responses are most marked in the early months of life. Grasp reflex (palmar and plantar): Light touch of the palm or sole produces reflex flexion of the fingers or toes. The most effective way to elicit the reflex is to
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Reflexes are involuntary and nearly instantaneous movements in response to a stimulus or trigger. In humans‚ there are different types of reflexes. These are stretch reflexes‚ cranial nerve reflexes‚ primitive reflexes‚ and cranial nervous system reflexes. Stretch reflexes‚ which are often called deep tendon reflexes‚ provide information on the integrity of the central nervous system and peripheral nervous system. Generally‚ decreased reflexes indicate a peripheral problem‚ while lively
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Infant Reflexes Rooting Reflex Rooting reflex is present at birth and assists in breastfeeding. However‚ this reflex will disappear at around four months. An infant will turn his head toward anything that touches his cheeks or mouth. He will search for the objects by turning his head and opening his mouth to follow the ‘root’. This reflex helps the infant search for the breast or bottle to start feeding. Moro Reflex The Moro reflex is present at birth and disappears in about two months of
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The four basic reflexes that babies are born with are root reflex‚ suck reflex‚ moro reflex and grasping reflex and each of them has a function in infants. • Root Reflex This reflex begins when an infant’s cheek is rubbed or the side of the mouth is touched. In response‚ the baby turns his or her head and open his or her mouth to follow and root in the direction of the stroking. Also‚ the infant begins to make sucking movements with his or her mouth. Therefore‚ this reflex plays an important role
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During infancy‚ a baby will have four main reflexes; the movements made in reflexes are inborn and automatically without thinking to help protect the baby and/or help it feed‚ learn and develop. These reflexes are rooting‚ grasp‚ walking and Moro reflexes and most if not all new-borns have them. Rooting reflex is when you touch the baby’s cheek and their head will move in that direction‚ their mouths opened wide‚ this ensures successful breast feasting. They do this‚ hungry or not as a reflex. The
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The purpose of the making alum from aluminum lab was to create alum from a series of chemical reactions involving aluminum. Small pieces of an aluminum can were cut and measured before being taken through a series of chemical reactions. This process involved filtering out waste product that was no longer needed in the reaction by using Whatman #4 filter paper and an aspirator. The first reaction that took place was placing aluminum pieces into the strong base NaOH and then heating it. This reaction
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=CBC Lab Report Jennie Halula 1/23/2015 WCCC/Spring 15’ A&P2/Laboratory Mr. Sisak Introduction The purpose of this experiment is to run the following blood tests on an individual (myself) and to record results. 1. RBC count (Normal Value: Females:4.8 million‚ Males:5.4 million per mm of blood) 2. WBC count (Normal Value: 4‚500-11‚000 per mm of blood) 3. WBC differential a. Normal Value: Neutrophils: 50-70% b. Normal Value: Eosinophils: 1-4% c. Normal Value: Basophils: 0.5-1%
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The Purpose of lab 1.4 Measuring Volume by Displacement of Water was to determine the fraction of air in different granulated solids. The lab cocised of one test done on four different granular solid; with up to 3 trials on each solid. When all tests are done and put in tables‚ and the calculations are made‚ the conclusion is that grain size does not affect that fraction of air. To be able to find the fraction of air‚ 3 measurement had to be taken‚ the volume of the solid with air‚ the volume of
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ABO Blood Typing Lab Purpose The purpose of this lab is to determine the blood types of four blood samples using Anti-A and Anti-B serums. Hypothesis If the anti-B serum is added to the simulated blood‚ the individuals with blood that is type A or type O will have no effect but it will agglutinate the individuals’ blood that is type B or AB. If the anti-A serum is added to the simulated blood‚ those that have blood type O and B will be unaffected but those with type AB or A will agglutinate.
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