This presentation covers internal structures of heart like atria and ventricles & external structures like emerging blood vessels and grooves on the heart. I hope this PPT will be helpful for instructors as well as teachers.
This presentation covers internal structures of heart like atria and ventricles & external structures like emerging blood vessels and grooves on the heart. I hope this PPT will be helpful for instructors as well as teachers.
This laboratory or flipped class exercise examines the cardiovascular responses to exercise of sedentary, endurance-trained, quadriplegic, and heart-transplanted individuals. The data was extracted from Patil, R.D., Karve, S.V., and DiCarlo, S.E. Adv. Physiol. Ed. 10(1):S22, 1993.
The first part of the document is a student handout, and the second part is the answers to the questions.
This laboratory or flipped class exercise examines the cardiovascular responses to exercise of sedentary, endurance-trained, quadriplegic, and heart-transplanted individuals. The data was extracted from Patil, R.D., Karve, S.V., and DiCarlo, S.E. Adv. Physiol. Ed. 10(1):S22, 1993.
The first part of the document is a student handout, and the second part is the answers to the questions.
these is 20 minutes presentation on vestibular system,presented by girmay fitiwi addis ababa university ,medical faculity departement of medical physiology.
The human heart heart length, width, and thickness are 12 cm, 8.5 cm, and 6 cm, respectively. In addition, the mean weight of the heart is 280-340 g in males and 230-280 g in females.
Cardiovascular system by Rupam Bhowmik.pptxRupam Bhowmik
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Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
2. Structure of the Heart - covered by the pericardium which is a sac surrounding the heart - it is made up of 3 layers - produces serous fluid to decrease friction
3. Wall of the Heart 3 Layers 1. Epicardium - provides protection - deep part contains fat along blood vessels 2. Myocardium - thickest layer – mostly cardiac muscle tissue - forces blood out of the heart chambers - contains many capillaries & nerve endings
4. 3. Endocardium - contains Perkinje fibers – specialized nerve fibers used during the heart beat
7. Blood supply to the heart a) coronary artery - supplies blood to heart muscles b) cardiac veins - takes blood away from heart muscles – empties into the coronary sinus The cardiac cycle movie
8. Actions of the Heart Cardiac Cycle - consists of the atrias contracting (atrial systole) followed by the contracting of the ventricles (ventricular systole) followed by a brief relaxation of the heart (diastole) Heart Sounds - lubb - ventricles contracting - tricuspid and bicuspid valves closing - dupp - ventricular relaxation - pulmonary & aortic valves closing
9. Cardiac Conduction System - specialized cells initiate and conduct impulses through the myocardium SA node AV node AV bundle Perkinje fibers
10. 1. Sinoatrial node (SA node) - start impulses with no connection to nervous system - stimulates atrias to contract - a.k.a. the pacemaker 2. Atrioventricular node (AV node) - causes a delay in signal - impulse passes into AV bundle - causes impulse speed to increase - separates into perkinje fibers - ventricles contract - force blood out of ventricles
11. Electrocardiogram (ECG or EKG) recording of electrical changes during cardiac cycle Cardiac conduction movie
12. P wave – impulse spreading from SA node to AV node - atria depolarize QRS Complex – spreading of impulse from AV node to ventricles - ventricles depolarize T wave – ventricles repolarize
13.
14. Regulation of the Cardiac Cycle - depends on: physical exercise body temp concentration of various ions - when heart rate needs to be changed, the cardiovascular center in the medulla oblongata sends impulses to the SA node - secretes ACH ( heart rate) - secretes norepinephrine ( heart rate
15. Blood Vessels Structure a. tunica externa tunica externa - outer most layer - contains elastin and collagen fibers
16. b. tunica media tunica media - middle layer - contains the muscles to allow for vasoconstriction and vasodilation
17. c. tunica interna tunica interna - inner layer - primarily simple squamous epithelium the endothelium - prevents blood clotting by providing a smooth surface
18. 1. Arteries - have thick muscular walls - carry blood away from the heart 2. Arterioles - little arteries - help to regulate blood flow to capillaries
19. 3. Capillaries - wall is made up of endothelium 1 cell thick - found near every living cell - high metabolic tissues have a greater density of capillaries - functions in gas exchange and filtration
20. 4. Venules - small veins - drain blood from capillaries 5. Veins - carry blood toward the heart - have thinner walls than arteries (less muscle) - act as a blood reservoir - contains valves to prevent the backflow of blood
21. Blood Pressure the hydrostatic pressure exerted by blood on the walls of blood vessels - there is a high bp in the arteries and low bp in the veins - must have a pressure difference in order for blood to flow
22. Factors Affecting Blood Pressure 1. Blood volume - volume = bp - volume = bp 2. Blood vessel radius - radius = bp - radius = bp - the radius can be affected by physical activity, overall health, stress, hormones
23. 3. Blood viscosity - the “thickness” of the blood - due to decrease water or anemia viscosity = bp 4. Total blood vessel length - length = bp 5. Heart action - heart forces blood into arteries - force = bp
24. - stroke volume – amt. of blood discharged from ventricles - ~ 70 mL - cardiac output – amt. of blood discharged from ventricles per minute - ~5,040 mL Measuring Blood Pressure - measured with a sphygmomanometer - systolic pressure – maximum pressure - diastolic pressure – minimum pressure
25. Clinical Applications asystole – failure of the myocardium to contract sinus rhythm – the normal cardiac rhythm regulated by the SA node myocardial infarction – death of the heart muscle tissue (heart attack)
26. heart murmur – a valve does not close properly causing some blood to leak “backward” to the previous chamber hypertension – high blood pressure
27. spider veins – a milder form of varicose veins varicose veins – enlarged, dilated veins that are seen through the skin
28. aneurysm – a sac that forms in a blood vessel due to a weakened artery atherosclerosis – deposit of fatty materials (plaque) on the walls of blood vessels