BMS 508 Study Guide
BMS 508 Study Guide BMS 508
Popular in Human Anatomy and Physiology II
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This 0 page Study Guide was uploaded by Jess Graff on Thursday February 18, 2016. The Study Guide belongs to BMS 508 at University of New Hampshire taught by Mary Katherine Lockwood, PhD in Spring 2016. Since its upload, it has received 102 views. For similar materials see Human Anatomy and Physiology II in Biological Sciences at University of New Hampshire.
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Date Created: 02/18/16
BMS 508 Study Guide Chapters 18 19 20 Chapter 18 Nervous system performs shortterm crisis management while the endocrine system regulates longerterm metabolic processes Paracrine communication involves the use of chemical signals to transfer info from cell to cell in 1 tissue Endocrine communication occurs when chemicals called hormones are released into the circulation by endocrine cells Hormones alter metabolic activities of numerous tissues and organs at the same time by adjusting the activities of the target cells ues ons What are chemical messengers that are released by cells and transported in the bloodstream to alter the activities of speci c cells 0 Answer Hormones What hormone is a part of the quick response to stress 0 Answer Epinephrine What hormone would be inhibited in a response to stress 0 Answer Insulin What hormone also aids the stress response by promoting water retention and acting as a vasoconstrictor 0 Answer ADH Watersoluble hormones affect target cells by binding to what 0 Answer Plasma membrane receptors How do endocrine hormones reach their target cells 0 They are transported through the blood stream The link between a rst messenger and a second messenger in a cell that responds to peptide hormones is usually what 0 Answer G protein What does the endocrine system not do 0 Answer Produce rapid local and briefduration responses to certain stimuli How are a cell39s hormone sensitivities determined 0 Answer Presenceabsence of certain receptors What39s the difference between an endocrine re ex and neural re exes o Answer In endocrine re exes a stimulus triggers the production of a hormone They are also the functional counterpart of neural re exes Neural and endocrine re exes are usually controlled by negative feedback mechanisms Chapter 19 The cardiovascular system enables quick transportation of nutrients waste products respiratory gases and cells in the body Plasma the uid portion of blood contains large quantities of plasma proteins and accounts for 55 of the volume of blood Red blood cells contain hemoglobin that can be recycled Hemostasis stops the loss of blood through the walls of damaged vessels ues ons What is the approximate temperature of blood temp and what is the average of blood pH 0 Answer 38 degrees C and 74 What is the correct sequence of homeostasis 0 Vascular spasm Platelet phase Coagulation Retraction Fibrinolysis What would be effect of dehydration 0 Answer An increase in the hematocrit What is hematocrit 0 Answer The percentage of formed elements in a sample of blood aka the quotvolume of packed red cellsquot What is whole blood 0 Answer the combo of plasma and formed elements What39s the most abundant component of plasma 0 Answer Water makes up 92 What organ secretes a majority of the plasma proteins 0 Answer The liver In adults what is the only site of red blood cell production as well as the primary site of white blood cell formation 0 Answer Red bone marrow What are basophils 0 Answer White blood cells that release histamine at the site of an injury What is the function of platelets o Forming a temporary patch in the walls of damaged blood vessels reducing the size of a break in the vessel wall and transportingreleasing chemicals that are important to the clotting process Chapter 20 The heart is a 4chambered organ supplied by the coronary circulation that pumps oxygenpoor blood to the lungs as well as oxygenrich blood to the rest of the body Blood vessels can be divided into 2 circuits the pulmonary circuit which carries blood tofrom the lungs and the systemic circuit which transports blood tofrom the rest of the body Arteries carry blood awayfrom the heart veins return blood to the heart The pericardial cavity is lined by the pericardium The visceral pericardium covers the heart39s outer surface while the parietal pericardium lines the inner surface of the pericardial sac that surrounds the heart ues ons What does the cardiac skeleton of the heart do 0 Answer Physically isolates the muscle bers of the atria from those of the ventricles and it maintains the normal shape of the heart What is the serous membrane that covers the outer surface of the heart 0 Answer Visceral pericardium What occurs during diastole 0 Answer The chamber of the heart relaxes and lls with blood Blood leaves the right ventricle by passing through what 0 The pulmonary valve Blood that is returning to the heart from the pulmonary circuit rst goes through what 0 The left atrium Blood that is returning to the heart from the systemic circuit rst enters the what 0 The right atrium What is cardiac arrest 0 Answer Sudden stopping of the pumping action of the heart which causes the loss of arterial blood pressure What will happen if the papillary muscles do not contract 0 Answer The AV valves will not close properly What factors in uence cardiac output 0 Answer Stroke volume and heart rate in uence cardiac output The right ventricle pumps blood to what 0 Answer The left amp right lungs
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