The document summarizes circulatory responses to exercise. It discusses how the cardiovascular system works to maintain homeostasis by increasing oxygen delivery to active muscles during exercise. This is achieved through two main adjustments: 1) increased cardiac output from higher heart rate and stroke volume, and 2) redistribution of blood flow from inactive organs to active skeletal muscles. The circulatory system plays a key role in transporting oxygen and nutrients to tissues and removing carbon dioxide.
Cardiovascular system (blood pressure, hypertension) Pharmacy Universe
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
The circulatory system includes the lymphatic system, which circulates lymph.[1] The passage of lymph for example takes much longer than that of blood.[2] Blood is a fluid consisting of plasma, red blood cells, white blood cells, and platelets that is circulated by the heart through the vertebrate vascular system, carrying oxygen and nutrients to and waste materials away from all body tissues. Lymph is essentially recycled excess blood plasma after it has been filtered from the interstitial fluid (between cells) and returned to the lymphatic system. The cardiovascular (from Latin words meaning "heart" and "vessel") system comprises the blood, heart, and blood vessels.[3] The lymph, lymph nodes, and lymph vessels form the lymphatic system, which returns filtered blood plasma from the interstitial fluid (between cells) as lymph.
Cardiovascular system (blood pressure, hypertension) Pharmacy Universe
The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.
The circulatory system includes the lymphatic system, which circulates lymph.[1] The passage of lymph for example takes much longer than that of blood.[2] Blood is a fluid consisting of plasma, red blood cells, white blood cells, and platelets that is circulated by the heart through the vertebrate vascular system, carrying oxygen and nutrients to and waste materials away from all body tissues. Lymph is essentially recycled excess blood plasma after it has been filtered from the interstitial fluid (between cells) and returned to the lymphatic system. The cardiovascular (from Latin words meaning "heart" and "vessel") system comprises the blood, heart, and blood vessels.[3] The lymph, lymph nodes, and lymph vessels form the lymphatic system, which returns filtered blood plasma from the interstitial fluid (between cells) as lymph.
This presentation provides a clear understanding of the physiology of the circulatory system. It focus lies on the division and component of the circulatory system, the three major function of the circulatory system, blood composition, structure of the heart, blood circulation; pulmonary and systemic circuit, valves of the heart, the pathway of blood flow through the heart, the cardiac cycle, pressure changes during the cardiac cycle; systole and diastole, cardiac output, heart sounds among others.
This presentation was designed by Fasama H. Kollie and presented by Benetta N. Kekulah, Cordelia Capehart and Abraham Peters.
In this course you will learn the cardiovascular system is Responsible for transporting oxygen, nutrients, hormones, and cellular waste products throughout the body, the cardiovascular system is powered by the body's hardest-working organ — the heart, which is only about the size of a closed fist.
CVS physiology, all details with explanation easy to recall physiology of cardiovascular system. based on Ganong's Review of Medical Physiology. all the high-yield facts are there.
FULL WEB Interactive version
http://www.scribd.com/doc/182401977/Physiologic-and-Pathophysiologic-Function-of-the-Heart-Cardiac-Cycle-Graphs-Curves-Loops-and-CO-Calculations
This presentation provides a clear understanding of the physiology of the circulatory system. It focus lies on the division and component of the circulatory system, the three major function of the circulatory system, blood composition, structure of the heart, blood circulation; pulmonary and systemic circuit, valves of the heart, the pathway of blood flow through the heart, the cardiac cycle, pressure changes during the cardiac cycle; systole and diastole, cardiac output, heart sounds among others.
This presentation was designed by Fasama H. Kollie and presented by Benetta N. Kekulah, Cordelia Capehart and Abraham Peters.
In this course you will learn the cardiovascular system is Responsible for transporting oxygen, nutrients, hormones, and cellular waste products throughout the body, the cardiovascular system is powered by the body's hardest-working organ — the heart, which is only about the size of a closed fist.
CVS physiology, all details with explanation easy to recall physiology of cardiovascular system. based on Ganong's Review of Medical Physiology. all the high-yield facts are there.
FULL WEB Interactive version
http://www.scribd.com/doc/182401977/Physiologic-and-Pathophysiologic-Function-of-the-Heart-Cardiac-Cycle-Graphs-Curves-Loops-and-CO-Calculations
Anatomy & Physiology of Cardiovascular system,pulmonary and Systemic circuits, Heart Anatomy, blood,Layers of the heart wall, Coronary Circulation, The cardiac cycle, Electrophysiology and Contraction, Electrophysiology of Cardiac Cells, Action potentials and impulse conduction, Circulation, Differences between arteries and veins, Actin-myosin interaction, Hemodynamics, Cardiac Output
Physiological changes During Aerobic ExerciseAnand Vaghasiya
Exercise induces more activity in the whole body almost every system of the body affected by exercise.
Increasing muscular activity demands the more Oxygen and red blood cell supply to the muscular tissue.
So what is Physiological changes During Aerobic Exercise? explained in detail.
Changes in Cardio-Vascular System
Changes in Respiration
Changes in Blood System
Endocrine functions
The Fick principle
Oxygen delivery or oxygen consumption ( VO2 )
Arterial venous oxygen difference (a-v O2 difference )
overview of heart and its disease
The heart is a powerful muscle that pumps
blood throughout the body by means of a
coordinated contraction.
The contraction is generated by an
electrical activation, which is spread by a
wave of bioelectricity that propagates in a
coordinated manner throughout the
heart.
It is located in thoracic cavity,
posterior to the sternum ,superior
to the diaphragm between the
lungs.
A human heart beats an average of
100,000 times per day. During that
time, it pumps more than 4,300
gallons of blood throughout
the entire body.
EPICARDIUM:
It is the outer layer of the wall of the heart which is composed of
connective tissue covered by epithelium. It is also known as
visceral pericardium.
2) MYOCARDIUM:
It is the muscular middle layer of the wall of the heart. It is
composed of spontaneously contracting cardiac muscle fibers
which allow the heart to contract. It stimulates heart contraction
to pump blood from the ventricles and relaxes the heart to allow
the arteries to receive blood.
ENDOCARDIUM:
It is the inner layer of the heart which consist of epithelial
tissue and connective tissue.
CVS in exercise - SPORTS PHYSIOLOGY
Cardiovascular system and the influence of exercises on it The effects of exercise on cardiovascular system can be determined it by :-
1. The effect on heart size,
2. The effect on plasma volume ,
3. The effect on stroke volume,
4. The effect on heart rate ,
5. The effect on cardiac output ,
6. The effect on oxygen extraction ,
7. The effect on blood flow and distribution
8. The effect on blood pressure
Wax therapy, which uses a bath of molten paraffin wax, is one of the most effective ways of applying heat to improve mobility by warming the connective tissues. Wax therapy is mainly used on your hands along with an exercise program.
HELIOTHERAPY Helio-means sun and therapy means treatment. The use of natural sunlight for therapeutic purposes is better known as heliotherapy.
Heliotherapy is defined as the treatment of disease by exposing the body to sunlight It is the treatment by means of Sun’s electromagnetic waves
The use of sunlight is prevalent since the times of ancient Greeks and Romans. In modern days, persons can be seen taking sunbaths at the beaches in the coastal regions. Heliotherapy is effective in the treatment of psoriasis and other skin conditions as the sunrays emit ultraviolet radiations.
Social stratification is a kind of social differentiation whereby a society groups people into socioeconomic strata, based upon their occupation and income, wealth and social status, or derived power (social and political).
describes the ways that people come to understand societal norms and expectations, to accept society’s
beliefs, and to be aware of societal values. Socialization is not the same as socializing (interacting with
others, like family, friends, and coworkers); to be precise, it is a sociological process that occurs
through socializing. As Danielle’s story illustrates, even the most basic of human activities are learned.
You may be surprised to know that even physical tasks like sitting, standing, and walking had not
automatically developed for Danielle as she grew. And without socialization, Danielle hadn’t learned
about the material culture of her society (the tangible objects a culture uses): for example, she couldn’t
hold a spoon, bounce a ball, or use a chair for sitting. She also hadn’t learned its nonmaterial culture,
such as its beliefs, values, and norms. She had no understanding of the concept of “family,” didn’t know
cultural expectations for using a bathroom for elimination, and had no sense of modesty. Most
importantly, she hadn’t learned to use the symbols that make up language—through which we learn
about who we are, how we fit with other people, and the natural and social worlds in which we live.
In sociology, a few theories provide broad perspectives that help explain many different aspects of
social life, and these are called paradigms. Paradigms are philosophical and theoretical frameworks
used within a discipline to formulate theories, generalizations, and the experiments performed in
support of them. Three paradigms have come to dominate sociological thinking, because they provide
useful explanations: structural functionalism, conflict theory, and symbolic interaction.
In sociology, a few theories provide broad perspectives that help explain many different aspects of
social life, and these are called paradigms. Paradigms are philosophical and theoretical frameworks
used within a discipline to formulate theories, generalizations, and the experiments performed in
support of them. Three paradigms have come to dominate sociological thinking, because they provide
useful explanations: structural functionalism, conflict theory, and symbolic interaction.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
2. Circulatory responses to exercises
Challenges to homeostasis by exercise
Increased muscular demand for oxygen
During heavy exercise the demand may be 15-25
times greater than at rest
“Cardiopulmonary system“ works to maintain
oxygen and carbon dioxide homeostasis in body
tissues.
3. Circulatory responses to exercises
In cardiopulmonary system :
Respiratory system adds oxygen and removes
carbon dioxide from the blood
Circulatory system is responsible for the delivery of
oxygenated blood and nutrients to tissues in
according to their needs.
4. Circulatory responses to exercises
To meet the inc. oxygen demands of muscle during
exercise, two major adjustments of blood flow
must be made
(I) an increased cardiac output (i.e,increased
amount of blood pumped per minute by the heart)
(2) a redistribution of blood flow from inactive
organs to the active skeletal muscles.
5.
6. Organization of Circulatory system
Heart creates the “pressure head” to move blood
through system.
Blood travels away from the heart in arteries by
veins.
Arteries convert into branches from arterioles and
arterioles develop much smaller vessels called
capillaries.
All O₂,CO₂ and nutrients between tissues and
circulatory system occurs across capillaries.
7. Blood passes from capillaries beds to small venous
called ‘venioles’.
As the venioles move back towards the heart, they
increase in size and become veins.
Mixture of venous blood from both upper and
lower body accumulates in the Right side of heart
called
“Mixed Venous Blood”
8. Heart is divided into four chambers:
Right atrium and right ventricle forms the Right
Pump.
Left atrium and left ventricle forms the Left Pump.
Right side of the heart and left side of the heart
separates by a muscular wall called “Inter
ventricular septum”. Septum prevents the mixing
of oxygenated and deoxygenated blood.
9.
10. Pulmonary and systemic circuit
Right side of the heart pumps blood which contain
elevated CO₂ contents
Blood delivered from right heart into lungs, this is
“pulmonary circuit”
At the lungs O₂ is loaded in the blood and CO₂is
released.
This oxygenated blood travels through the left side
of heart and is pumped out throughout the body.
11.
12.
13.
14. Cardiac cycle
Cardiac cycle is the repeating pattern of contraction
and relaxation of heart.
Heart has two steps of pumping:
Contraction phase of ventricles called “Systole”
Relaxation phase of ventricles called “Diastole”
15. Atria also contract and relax called “Atrial Systole
and Diastole”
Atrial (systole) contraction occurs when ventricles
are relaxed (diastole)
Atrial (diastole) during ventricular (systole)
Right and left atria contract together and empty
atrial blood into ventricles
16.
17. If an average heart rate of 75 beats/minute, the total
cardiac cycle lasts 0.8 second
0.5 second spend in diastole and the remaining 0.3
second dedicated to systole.
If heart rate increases at 75 bpm to 180 bpm (heavy
exercise) cardiac cycle= 0.33 second
Rising heart rate results in a greater times reduction
in the diastole while systole is less effected
Pacemaker of heart is SA node
18. Average BP during a cardiac cycle is called “Mean
Blood Pressure”
Blood pressure can be increased by one or all of the
following:
increase in blood volume
increase in heart rate
increase in blood viscosity
Increase in stroke volume.
19. Cardiac output
Cardiac output is the product of heart rate (HR) and
stroke volume (SV)
Q=HR×SV beat/minute (bpm)
During exercise, the quantity of blood pumped by the
heart change according to the requirement of skeletal
elevated O2 demand
Stroke volume
Amount of blood pumped per heart beat
EDV(End diastolic volume)
amount of blood in the ventricles just before systole.
20. Adaptations during Xs:
Left ventricle size increases as a result of endurance
training with little change in ventricular wall
thickness.
While isometric exercise can increase in wall
thickness with little or no change in ventricular
volume.
Plasma volume increases with endurance training
200-300 ml increases 4% in VO₂ Max.
21.
22. EJECTION FRACTION
EF serves as a general measure of a person's cardiac
function.
Ejection fraction is commonly measured by ECG,
In which the volumes of the heart's chambers are
measured during the cardiac cycle
24. In a healthy 70-kilogram (150 lb) man,
SV is approximately 70 mL
left ventricular EDV is 120 mL,
giving an ejection fraction of 70⁄120,
or 0.58 (58%).
Healthy older adults with ventricles become less
compliant are proven to have an EF from 55–85% with
the help of good genetics and a healthy lifestyle.
25.
26. Haemodynamic
Blood flow through circulatory system results from
pressure difference between the two ends of system.
Physical regulation of blood flow to tissue consist of
inter relationship between pressure, flow and
resistance.
These factors and the physical principles of blood
flow called “hemodynamic”
Blood is composed to two principle components
(plasma and cells).
27. Blood Flow= ∆ Pressure
Resistance
Most important factors determining resistance to the
blood flow is the radius of blood vessels. Greater
vascular resistance to blood flow is offered in
arterioles
Resistance = length × viscosity
Radius⁴
28. Changes inO2 delivery to muscles during Xs
As compare to resting value O₂ needs in skeletal
muscle during exercise is by several times to meet
this rise in O₂ demand blood flow to muscles must
be increase.
Increased O₂ delivery to exercising muscle is
provided by two mechanisms:
I. Increased cardiac output.
II. Redistribution of blood flow.
29. Increased Cardiac Output:
Cardiac output increased during exercise is directly
proportional to metabolic rate to perform required
task.
Increased cardiac output during exercise is achieved
by an increased in both stroke volume and heart rate.
Stroke volume does not increased beyond a work
load of approximate 40% VO₂ max
Max HR=220 age
30. Redistribution of Blood Flow
It is necessary to increase blood flow to the muscle at
the same time reducing blood flow to the less active
organs such as kidneys, GIT and liver
Approximate 15-20% of the total cardiac output is
directed towards skeletal muscles and during
exercise 80-85% total cardiac output goes to the
contracting skeletal muscle.