Heart Rate Regulation and Blood Clotting

Platelets

• form sticky plug

• cause vasoconstriction

• produce fibrin strands

• release clotting factors

The function of fibrin strands is to...

• activate clotting factors

• trap blood cells at the site of damage

• activate the enzyme plasmin

• activate the enzyme thrombin

Thrombosis is...

• formation of blood clot in blood vessel

• partial or total blockage of blood vessel

• deposition of cholesterol in blood vessels

• dislodged blood clot that can cause stroke or heart attack

Atherosclerosis is...

• formation of blood clot in blood vessel

• partial or total blockage of blood vessel

• deposition of cholesterol in blood vessels

• dislodged blood clot that can cause stroke or heart attack

Embolism is...

• formation of blood clot in blood vessel

• partial or total blockage of blood vessel

• deposition of cholesterol in blood vessels

• dislodged blood clot that can cause stroke or heart attack

Occlusion is...

• formation of blood clot in blood vessel

• partial or total blockage of blood vessel

• deposition of cholesterol in blood vessels

• dislodged blood clot that can cause stroke or heart attack

Coronary atherosclerosis can lead to...

• occlusion

• thrombosis

• heart tissue damage

• obesity

Sympathetic nerve...

• releases acetylcholine

• releases noradrenaline/norepinephrine

• increases heart rate

• decreases heart rate

Parasympathetic nerve...

• releases acetylcholine

• releases noradrenaline/norepinephrine

• increases heart rate

• decreases heart rate

Parasympathetic nerve is also called...

• vena cava

• vegas nerve

• veneral nerve

• las vegas