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WELCOME

JNV PHAPHRE BHAI KE, DISTT. MANSA

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PREPARED BY:-

PARNEET KAUR

GUIDED BY:-

BEANT SHARMA

FCSA

3Microsoft corporation

STRUCTURE OF HEART

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OBJECTIVES

Structure of heart What is our heart

Internal Structure

Blood flow in heart chamber

Blood vessels Arteries

Veins and valves

Capillaries

Structure of blood HEA

RT A

ND

IT’S

STR

UC

TU

RE

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Page Title1) Contents Page2) Header Page3) Where Your Heart Is4) What Your Heart Is5) Cardiac Muscles6) Heart Chambers7) Cardiac Cycle8) Atriums and Veins: How Blood gets into your

Heart9) Atriums to Ventricles10) Ventricles and Arteries: Pumping Blood from

your Heart11) Structure of Your Heart: Summary12) Blood Vessels: Arteries13) Blood Vessels: Veins and Valves14) Blood Vessels: Capillaries15) Blood16) Heart Problems17) ECG

Contents

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Where Your Heart Is

•Your Heart is in the centre of your body,behind the breastbone and between your

lungs.

•Your Heart and Lungs fill the chest cavity and are protected by the ribs.

Heart

Lung

Lung

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What Your Heart Is

•Your Heart is a pump

•Your Heart is a muscular organ

•Your Heart pumps blood all around your body

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InternalStructure of heart

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Heart Chambers

•Your Heart has 4 Chambers:

Right Auricle Left Auricle

Right Ventricle

Left Ventricle

The bottom chambers are called V_________.

The top chambers are called A_______.

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Atriums and Veins: How Blood gets into your Heart

•Blood enters the Heart through two V____.

Right Auricle Left Auricle

•The Body sends blood with no Oxygen in it through veins to the Heart.

Veins

•The Lungs send blood with Oxygen in it through veins to the Heart.

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Atriums to Ventricles

•Blood is pumped from the Auricles into

the Heart’s Ventricles.

Right Auricle Left Auricle

Right Ventricle

Left Ventricle

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Ventricles and Arteries: Pumping Blood from your Heart

•The Heart pumps blood through Arteries to the Lungs to collect Oxygen.

Left Ventricle

Right Ventricle

ArteryArtery

•Blood leaves the Heart through two A_______.

•The Heart pumps blood through Arteries to supply Oxygen to the Body.

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Structure of Your Heart: Summary

RightAuricl

e

LeftAuricl

e

RightVentric

le

LeftVentric

le

FromLungs

ToLungs

FromBody

ToBody

Blood from Veins into Heart

Blood to Arteries out of Heart

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Arteries

•Arteries are blood vessels thatcarry blood away from your heart.

•Arteries are just like tubes

•Blood is pumped through the arteries at high pressure because it needs to reach every part of your body.

•To stand the high pressure, arteries have thick walls.

•Arteries become narrow as they branch through the body to supply all tissues.

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Veins and Valves

•Veins are blood vessels that carry blood from body parts to heart

•Veins, like arteries,Are just like same.

•Valves in the Veins make sure blood flows in 0ne direction only.

•The blood pressure is much low in the veins than it is in the arteries so the veins have thin walls.

•Veins have thin walls and contain valves

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Capillaries•Capillaries receive blood from the smallest arteries

and carry it into the tissues.

•Capillaries are just wide enough to allow one blood cell to pass along.

•Once the blood is “used”, Capillaries then pass blood on from the tissues to the veins.

•Capillaries have thin walls to let gases, food, waste and

other substances pass between blood and tissues.

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Blood•Blood contains Red & White Cells,

Plasma and Platelets.

Platelets

Red Cells White Cells

Plasma

•Blood carries food, heat and oxygen around the body.

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END OF THE PRESENTATION