What Happens During a Heart Attack? The heart muscle requires a constant supply of oxygen-rich blood to nourish it. The coronary arteries provide the heart with this critical blood supply. If you have coronary artery disease, those arteries become narrow and blood cannot flow as well as they should. Fatty matter, calcium, proteins, and inflammatory cells build up within the arteries to form plaques of different sizes. The plaque deposits are hard on the outside and soft and mushy on the inside. When the plaque is hard, the outer shell cracks (plaque rupture), platelets (disc-shaped particles in the blood that aid clotting) come to the area, and blood clots form around the plaque. If a blood clot totally blocks the artery, the heart muscle becomes “starved” for oxygen. Within a short time, death of heart muscle cells occurs, causing permanent damage. This is a heart attack. While it is unusual, a heart attack can also be caused by a spasm of a coronary artery. During a coronary spasm, the coronary arteries restrict or spasm on and off, reducing blood supply to the heart muscle (ischemia). It may occur at rest, and can even occur in people without significant coronary artery disease. Each coronary artery supplies blood to a region of heart muscle. The amount of damage to the heart muscle depends on the size of the area supplied by the blocked artery and the time between injury and treatment. Healing of the heart muscle begins soon after a heart attack and takes about eight weeks. Just like a skin wound, the heart’s wound heals and a scar will form in the damaged area. But, the new scar tissue does not contract. So, the heart’s pumping ability is lessened after a heart attack. The amount of lost pumping ability depends on the size and location of the scar.

Watch Heart Attack in 3D
- Post author:
- Post published:May 23, 2021
- Post category:Uncategorized
- Post comments:0 Comments
You Might Also Like

Is pregnancy possible with delayed periods with negative pregnancy tests? – Dr. Teena S Thomas

How to test for Protein

Erector Spinae Back Extension-22

Biceps: One Arm Preacher Curl Low Pulley Cable

Thyroid Cure Permanently With in Week – Thyroid Free for Raw Onion

Fat Loss Weight Loss Video – 4

FOODS THAT LOWER BLOOD PRESSURE CAN CURE HIGH BLOOD PRESSURE

Shoulder Workout

Leg Extension-2

Routes of administration

10 Signs Of Diabetes ?

Neurodevelopmental Disorder Video – 4

How to Do One-Arm Dumbbell Row — Form, Muscles Worked, Benefits

Spa Mineral Video – 1

Sugar Free, Low Sugar Video – 18

Rinifol Capsules Uses & Doses Full Review

Sleep Video – 3

Andrology Video – 6

BEST Tricep Exercise for MASS – Close Grip Tricep Press

(CC) How to Pronounce atenolol with chlorthalidone (Tenoretic) Backbuilding Pharmacology

What is Basal Metabolic Rate (BMR)? How to Calculate it? – Tehzeeb Lalani – Tell Me Doctor

Eve Nutrition Video – 2

How to Take Measurements & Determine Your Body Type | Different Types of Body Shapes | Glamrs

ON Glutamine Powder Review | Body Spartan Recommendations

Milk Nutrition & Processing Video – 2

How to Choose a Gynecomastia Surgeon

OneTouch SelectSimple Demo

Close Grip Triceps Extension-7

RI MMA Q & A – (Pre-workout Preparation Essentials)

Ketogenic Diet Xenical

Soccer/ Football Video – 1

Build bigger biceps – faster (how to do Dumbbell Concentration Curl)

What Are The Symptoms Of Chronic Kidney Disease? – Manipal Hospital

Definition of Sport

Human Body, Body Building Muscle Building Anatomy Physiology Video – 30

Know Everything About Anal Fistula – Formtion | Cure | Kshar sutra Treatment

Achieve PT PE | Exercise of the Week: Swiss Ball Reverse Hyperextension

Weight Gain Nutrition Video – 2

What Losing Weight Does To Your Body And Brain | The Human Body

Tricep Bar Hammer Preacher Curls

Placements of Chest leads In ECG
