flat lined again it continue to follow this trace continuously. 7. What part of the trace shows the refractory period? The atrial contraction is the part of the trace that shows the refractory period 8. Does summation occur? No summation 9. Why is it important that summation not occur in heart muscle? Summation would increase the Heart muscle contractions which would lead to heart attack. Activity 2: Vagus Nerve Stimulation 1. Describe the effect of the vagus nerve stimulation
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The dermis is composed of the papillary layer and the ___________. | epidermis | | cutaneous plexus | | hypodermis | | -reticular layerThe reticular and papillary layers together compose the dermis. | What structure is responsible for the strength of attachment between the epidermis and dermis? | stratum corneum | | basement membrane | | -epidermal ridge | | stratum lucidumThe deeper the epidermal ridge‚ the stronger the attachment. | The type of cells that form the strata
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again‚ it continued to follow this trace continuously. 7. What part of the trace shows the refractory period? The atrial contraction is the part of the trace that shows the refractory period. 8. Does summation occur? No‚ summation does not occur. 9. Why is it important that summation not occur in heart muscle? Summation would increase the Heart muscle contractions which would lead to a heart attack. Activity 2: Vagus Nerve Stimulation 1. Describe the effect of the vagus nerve stimulation
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Comparative Vertebrate Anatomy Lecture Notes - Skeletal System II (Skull) The Vertebrate Skull consists of: 1 - neurocranium (also called endocranium or primary braincase) 2 - dermatocranium (membrane bones) 3 - splanchnocranium (or visceral skeleton) Neurocranium: 1 - protects the brain 2 - begins as cartilage that is partly or entirely replaced by bone (except in cartilaginous fishes) Cartilaginous stage: neurocranium begins as pair of parachordal & prechordal cartilages below the
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A&P – P 1 OF 2 This course is a study of “Human Anatomy and Physiology.” Humans can be classified as: - Animals (we are multicellular‚ motile organisms that lack cell walls) - Vertebrates (we have backbones) - Mammals (we have hair‚ mammary glands‚ 3 bones in each ear) - Primates (we have opposable thumbs‚ 2 clavicles‚ forward facing eyes) - Hominids (we are bipedal and have a large brain size to body size ratio). Anatomy is the study of animal structure. The word comes
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Please read about the new changes close Cardiac action potential From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (May 2013) As in other cells‚ the cardiac action potential is a short-lasting event in which the difference of potential between the interior and the exterior
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What genetic mutations produce the greatest risk of skin cancer? Cancer begins when one or more genes in a cell mutate. This either creates an abnormal protein or no protein at all‚ which causes mutated cells to multiply uncontrollably. The Most common gene to carry skin cancer would be the MC1R (melanocortin-1 receptor). Increasing evidence is showing that the greater number of variations in this gene‚ the greater the risk for melanoma. It also carries a more moderate risk that the CDKN2A mutation
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The uppermost strand in this structure is called the coding strand. The second strand that lies below the coding strand is called the template strand. In order for a RNA polymerase to go from the upper strand to the second strand it must go through the process called transcription. First‚ the RNA polymerase must attach on to one of the genes on the coding strand on DNA. Once the RNA polymerase attaches‚ it must then begin the process called initiation. This means that the RNA polymerase opens up
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Name: TORI SCHARKLEY Exercise 1: Cell Transport Mechanisms and Permeability: Activity 1: Simulating Dialysis (Simple Diffusion) Lab Report Pre-lab Quiz Results You scored 75% by answering 3 out of 4 questions correctly. 1. The driving force for diffusion is You correctly answered: b. the kinetic energy of the molecules in motion. 2. In diffusion‚ molecules move You correctly answered: a. from high concentration to low concentration. 3. Which of the following dialysis membranes has the largest pore
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(P1) Outline the functions of the main cell components Every individual possess billions of cells in their body but not only is the human body functional With cells but also contains tissues‚ organs and systems which is what the human body is made up of. The cell carries out vast numbers of chemical reactions which processes in order to make up the essence of life (Moonie N‚ Aldworth C‚ Billingham M & Talman H ‚2012). Cells are usually grouped together with other cells carrying out particular
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