1.1.8 - Blood Clotting

Question 1

What Does Blood Clotting Do To Help The Body?
(3 Points)

Answer 1

~ Prevent excess loss of blood.

~ Prevents the entry of pathogens.

~ Provides a barrier / scab.

Question 2

Blood Clots Reduce Blood Flow Which Restricts The Movement Of Oxygen In The Blood, How Does This Affect The Body?

Answer 2

It reduces respiration in surrounding cells, tissues, and organs, leading to potential cell death and organ failure.

Question 3

The Blood Clot That Forms Can Completely Block The Artery, What Is The Consequence?

Answer 3

Prevents blood from reaching vital areas, potentially causing heart attacks or strokes.

Question 4

The Blood Clots Can Dislodge And Travel To Different Blood Vessels In The Body, Why Is This Dangerous?

Answer 4

The clots can block smaller vessels elsewhere, potentially leading to other harmful conditions.

Question 5

What Triggers Thrombosis?

Answer 5

When the atheroma ruptures, damaging the artery wall.

Question 6

Describe The Steps That Occur In Thrombosis
(5 Points)

Answer 6

~ Thromboplastin is released from the damaged blood vessel.

~ Thromboplastin and calcium ions from the plasma, trigger the conversion of soluble prothrombin protein into the enzyme thrombin.

~ Thrombin then catalyses the conversion of the soluble protein fibrinogen to the insoluble protein fibrin.

~ The fibrin fibres then form a mesh and tangle together, causing platelets and RBCs get trapped in.

~ Blood clot is then formed.

Question 7

What Is A Stroke?

Answer 7

A rapid loss of brain function, due to the disruption in the blood supply to the brain.

Question 8

What Is A Stroke Caused By?

Answer 8

Caused by a blood clot in an artery leading to the brain, reducing the amount of blood and oxygen that can reach the brain.

Question 9

How Can Blood Clots Cause Heart Attacks?
(2 Points)

Answer 9

~ The coronary arteries become blocked, meaning that an area of the heart muscle will not recieve oxygen.

~ Causing a myocardial infarction.

Question 10

What Is Another Word For A Heart Attack?

Answer 10

Myocardial infarction.

Question 11

What Is Coronary Heart Disease Caused By?

Answer 11

Formations of atheroma’s and blood clots in the coronary arteries.

Question 12

What Are Symptoms Of A Heart Attack?
(3 Points)

Answer 12

~ Chest pain.

~ Shortness of breath.

~ Sweating.

Question 13

When Does Complete Heart Failure Occur?

Answer 13

When large areas of the heart are affected by blood clots.

Question 14

What Is Deep Vein Thrombosis?
(3 Points)

Answer 14

~ Occurs when a blood clot forms deep inside the body.

~ Common in veins in the legs.

~ Caused by prolonged inactivity, old age and some medications.