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

High Risk Pregnancy: Ultrasound Services

Understanding Triglycerides | Nucleus Health

Difference Between Adverse Effect and Side Effect
Multivitamin Supplement

Top 10 Rich Protein Foods For Vegetarians | Info TV

Pranayama Video – 2

Overview of oxidative fuel metabolism

Common Causes of Heart Failure | Nucleus Health

Preventive Medicine Video – 1

BCS: Straightbar Bicep Preacher Cable Curl Exercise (Advanced Biceps Exercise)

Nutritional Deficiency Symptoms From Eyes | Dr.Berg

Rosuvastatin versus atorvastatin in a high-risk population with hypercholesterolemia

Alcoholic Liver Disease – For Medical Students

Brown Flax vs Golden Flax Omega 3 & 6 Fatty Acids, Antioxidants

Garlic Nutrition Video – 1

How To Get A Body Like A Boxer

Gynecomastia Treatment Dallas – Overcome Gynaecomastia Promptly

Excretory System Parts and Functions Animation video for kids

What Is The Best Type Of Drinking Water? – Dr. Doug Graham

Cycling Video – 4

Incline Barbell Bench Press – Chest Exercises For Upper Pecs

Benefits of Omega 3 Fish Oil Supplements ft. Naturyz Triple Strength Omega 3 Fish Oil Supplement

Calisthenics Workout Routines – FULL BODY GUIDE (incl. Warm up/Alternatives/Progression)

ReShape Side Effects

Diazepam Meaning

HGH, Growth Hormones & Plant Hormones Video – 24

Defining Training Intensity

10 Foods to Avoid During Breastfeeding

Massage Video – 1

How to Do a Torso Twist | Gym Workout

Nutrition Physiology Video – 1

Meaning of BCAA (Medical Abbreviation)

Powerlifting to Win Novice Program week 2

The Best Way to Lose 5 LBS of Body Fat (AND FASTEST!)

How to Do Chest Fly Exercises on a Machine

Angioplasty Procedure Animation Video.

Water Polo Video – 4

Effective support for losing weight: Orlistat HEXAL® 60 mg

Exercise #224 – Preacher Curl on Stability Ball One Arm (dumbbell)

Gynecology Video – 3

TOP 3 Natural GLUTAMINE Food for Muscle Building & Recovery | Info by Guru Mann
