powerpoint presentation on circulatory system

The Circulatory System

Interesting Facts

• The heartbeat is strong enough to squirt blood 30 feet
• The longer a boy’s ring finger is, the less likely they are to have a heart attack (according to one study)
• The human heart beats ~35 million times per year
• The heart pumps ~1,000,000 barrels of blood in a lifetime
• Most heart attacks occur between 8-9 a.m.
• The blue whale has the

largest heart –

it weighs ~ one ton

• The hummingbird has a

heart that beats

1,000 times per minute

• Your entire volume of blood goes through your whole body once every minute
• Humans have ~60,000 miles of blood vessels in their bodies (more than twice the circumference of the earth!)
• Your heart beats 100,000 times and pumps ~2,000 gallons of blood every day
• Pig and baboon hearts have been transplanted into humans

Exploration

This is a picture of the

bottom of the human tongue.

Take a look at the bottom of your lab partner’s tongue (if they will let you) and see if you can find…

◦The veins –thick blue lines

◦The arteries –thick pink lines

◦The capillaries –tiny thin lines

What provides the force to cause the blood to circulate through the body?

The heart is composed of cardiac muscle

which is part of the autonomic (automatic)

nervous system.

When it beats (flexes) blood is pushed through

the cardiovascular/circulatory system.

A collection of vessels and the muscles that

control the flow of blood through the body .

What is the Circulatory System?

◦The organ that pumps blood through the circulatory system.

• Size of a fist;
• Weighs less than a pound
• In thorax; flanked by lungs; rests on diaphragm
• Bottom: apex

Receive blood into heart

and pass it on to the ventricles

Collect blood from the heart

and pass it on to the lungs, aorta, and

push it out into the body

Larger than the atria as more muscle is needed to pump greater volumes of blood

• Why is the left ventricle bigger than the right ventricle?

Because the right ventricle only has to push blood out to the lungs which are not very far away in comparison to the left ventricle which must push out blood into the rest of the body.

Types of Blood Vessels

• Arteries are thick walled and muscular vessels
• Arteries move oxygen rich blood away from the heart (with the exception of the Pulmonary artery)
• How is the structure of an artery related to its function?
• Blood vessels that carry blood away from the heart.
• They have thick, elastic walls made of connective tissue and smooth muscle that can expand in size
• Most carry oxygenated blood ( red )
• Damaged arteries spurt in time to heartbeat
• Veins are thin walled vessels and have flexible walls. Veins also have one way valves.
• Veins bring deoxygenated blood back to the heart
• How does the structure of a veins relate to its function?
• Blood vessels that carry blood back to the heart.
• Carry blood at low pressure
• Have valves to prevent backflow of blood against gravity
• Most carry de-oxygenated blood ( purple )
• Damaged veins ooze blood

◦Smaller blood vessels that extend from arteries to capillaries.

Capillaries

◦The smallest vessels in the body. They are only one cell thick and allow oxygen and carbon dioxide to be exchanged from blood to body tissues.

◦Smaller blood vessels that extend from capillaries to veins.

• Capillaries are only one cell thick and have very flexible walls.
• Capillaries connect arteries (arterioles) to veins (venules) and allow for gas , nutrients , and waste exchange .
• Connect arteries and veins
• Walls are one cell thick
• Allow exchange of gases through thin walls
• Drop off oxygen delivered from heart by arteries
• Pick up CO 2 and send it to the heart thru veins

How Blood Travels thru Vessels

heart artery arteriole capillary venule vein heart

Blood Vessels

• Arteries: carry blood AWAY from the heart
• Veins: carry blood IN to the heart
• Capillaries: connect arteries to veins & exchange gases with tissues

The Circulatory System - PowerPoint

The Circulatory System is a fundamental topic covered in science education, and a PowerPoint presentation by Teacher of Primary offers an engaging resource to help students understand this vital bodily function. The circulatory system comprises the heart, blood vessels, and blood, each playing a crucial role in sustaining life. The heart, a muscle located centrally in the chest slightly towards the left and roughly the size of one's fist, is responsible for pumping blood throughout the body via blood vessels. This system's primary function is to circulate oxygen-rich blood and nutrients to various body parts while also removing waste products.

The heart operates as a dual-sided pump, with the left side receiving oxygenated blood from the lungs and sending it out to the body, while the right side collects deoxygenated blood from the body and pumps it back to the lungs for re-oxygenation. Structurally, the heart is divided into four chambers: the right and left atria at the top, which receive returning blood, and the right and left ventricles at the bottom, which are tasked with pumping blood out. Blood flow through the heart is meticulously controlled by the contraction of these chambers and the function of valves that prevent backflow, creating the familiar heartbeat sound. Blood vessels, including arteries, veins, and capillaries, facilitate the circulation of blood, and the pulse rate, typically between 70-100 beats per minute at rest, can be felt where arteries run close to the skin. The blood itself is a mixture of red blood cells, platelets, and white blood cells suspended in plasma, each with specific functions such as oxygen transport, clotting, and immune defense. The presentation also includes a quiz to test students' understanding of the circulatory system and its components.

Home PowerPoint Templates Template Backgrounds Circulatory System PowerPoint Template

Circulatory System PowerPoint Template

The Circulatory System PowerPoint Template is a health literacy presentation deck. It offers a collection of diagrams featuring functions of the cardiovascular system. These diagrams include the anatomy of blood vessels in the human body, their structure, arteries of heart, and cells. There are additional three slides of myocardial infarction, stroke, and varicose veins for heart conditions including structural problems and blood clots.

The circulatory system known as cardiovascular or vascular is an organ system of blood circulation in the body. It is made up of a network of blood vessels that transport blood to and from the heart. The blood vessels that carry blood away from the heart are called arteries and veins take the blood back to the heart. This system of transporting blood carries oxygen, nutrients, and hormones to cells.

The PowerPoint templates of Circulatory system diagrams are educational presentations. These templates can help communicate hearth health concepts to medical students or create presentations on specific topics such as a myocardial infarction PPT. The label diagrams of blood vessels and hearth display the components in a clear manner. The health professionals benefit from presentations of the cardiovascular system and related topics to discuss new medical developments. Users can copy these diagrams propose a convincing case for treatments or medical devices to venture capitalists and investors.

The Circulatory System PowerPoint Template is designed with vector images to illustrate the anatomy of the human heart. The vector-based graphics let users customize PowerPoint shapes by changing colors, sizes, and shape effects. Users benefit from editable graphics to recreate more high-quality diagrams by combining graphics from multiple slides. The slides of cell types are reusable in many medical presentations about healthy blood cells or diseases.

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Circulatory System PPT: Definition, Functions, Parts and Conditions

Circulatory System PPT: Definition, Functions, Parts and Conditions Free Download: The circulatory system’s blood arteries direct blood away from and toward the heart. Blood is transported from the heart via the arteries and returned by the veins.The circulatory system transports nutrients like oxygen and hormones to cells and removes wastes like carbon dioxide. These roads only go in one direction, to keep things going in the right direction.

From the heart, two routes emerge:

A brief loop runs from the heart to the lungs and back again, making up the pulmonary circulation.

Blood is circulated throughout the entire body via the systemic circulation, from the heart to every other organ and back again.

Table of Content

• Introduction
• Functions of Circulatory System
• How Circulatory System Work?
• Parts of Circulatory System
• Circuits of Circulatory System
• Types of Blood Vessels
• Conditions affect the circulatory System
• Prevention of  circulatory System Diseases

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HUMAN CIRCULATORY SYSTEM

Aug 25, 2014

780 likes | 1.13k Views

HUMAN CIRCULATORY SYSTEM. Circulatory Systems. Open system vs. closed system Both have a pump Open system has no blood vessels to hold blood Closed system has blood contained within vessels. Circulatory systems. The simplest of organisms do not have a circulatory system

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• arterial blood flow
• red blood cells
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• blood vessels

Presentation Transcript

Circulatory Systems • Open system vs. closed system • Both have a pump • Open system has no blood vessels to hold blood • Closed system has blood contained within vessels

Circulatory systems • The simplest of organisms do not have a circulatory system • Rely on diffusion/osmosis for regulation

Circulatory systems • Other simple organisms rely on the flow of water to exchange nutrients and wastes

Open vs. Closed Circulatory systems

Closed circulatory systems • Vary in complexity

Human Heart

Cardiac muscle

Structure of the heart wall

Artery and Veinstructural comparison

Artery • Walls are thick • Muscular • Elastic, so they can stretch when heart contracts • Must withstand higher pressure than veins

Atherosclerosis

Vein • Thin-walled (less muscle, less elastic tissue) • Contain VALVES to prevent back-flow

Capillaries • Blood vessels with the smallest diameter and thinnest walls

Capillary Beds • Exchange of carbon dioxide, oxygen, and nutrients occurs in the capillary beds

BLOOD PRESSURE • Measurement of both the pressure under which the heart contracts (systole), as well as the pressure under which the heart fills (diastole)

BLOOD PRESSURE • Blood pressure is checked in your arm, using a sphygmomanometer

Blood Pressure • The pressure generated by your heart can be measured in your arm because the pressure is transmitted through the muscular, elastic arteries

Blood Pressure • Measured in mm Hg • Reported as two numbers: systolic pressure diastolic pressure

Systolic blood pressure • Pressure transmitted when the left ventricle contracts • It is the pressure under which the blood is being forced out of the left ventricle into the aorta

Diastolic blood pressure • Is the filling pressure of the heart

Sounds of Korotkoff

Sounds of Korotkoff • Sounds of Korotkoff (are caused by turbulence in arterial blood flow. • A well-trained examiner can hear 5 different Korotkoff sounds, which vary slightly in quality • The first and fifth Korotkoff sounds are used to define blood pressure

Pulse Points

Blood Pressure • Generally measured over the brachial artery

Why is blood pressure important? • Blood pressure must remain in a normal range so that tissues can receive adequate blood flow in order to exchange gases, nutrients, and wastes efficiently

HYPERTENSION • Elevation in blood pressure • Fairly common: about 30% • almost 1 in 3 adults! • HTN more common in • African Americans • Obese people

Hypertension • High blood pressure can damage the heart and blood vessels • Increases the chances of having a stroke • Cause is multi-factorial • Can be treated with medication; sometimes with diet and exercise alone

Regulation of blood pressure

Conduction System of the Heart

Electrocardiogram • Useful tool for studying the conduction of impulses through the heart

Electrocardiogram • P wave represents depolarization of the atrium • QRS complex represents depolarization of the ventricles • T wave represents repolarization (“recharging” for the next beat

Normal Electrocardiogram

ECG abnormalities • After a myocardial infarction (heart attack, “MI”), the damaged areas of the heart no longer have normal conduction of impulses • Results in a change in the normal waveforms

ECG abnormalities

ECG abnormalities • Atrial fibrillation

ECG abnormalities • Acute myocardial infarction (heart attack)

COMPOSITION OF BLOOD • Blood is made up of a fluid portion and a cellular portion

PLASMA • Made up of water, proteins, ions, amino acids, sugars • Carries carbon dioxide (released from tissues) • Carries nutrients from the digestive system, hormones

Cells in the Blood • Erythrocytes: Red Blood Cells, RBC’s

Erythrocytes • Contain hemoglobin • A protein • Transports Oxygen

Erythrocytes • Hemoglobin structure

Erythrocytes • Live about 120 days • Produced in the bone marrow • Productions is regulated by a hormone from the kidneys- • erythropoetin

Blood Cells • Leukocytes = White Blood Cells • Function in the immune system • Form a second line of defense against bacteria and viruses • Larger than RBC’s

Leukocytes • Granulocytes • Neutrophils • Basophils • Eosinophils • Lymphocytes • Macrophages

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