Heart

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Vagus Nerve

Brain

Heart

Digestive system

gut microbiome

Nervous system

parasympathetic nervous system

sympathetic nervous system

Flight or fight

Disease

Coronary Heart Disease

muscular System

Muscle Cells

Respiratory system

Lungs

Capillaries

Carbon dioxide removal

Oxygenation

Main topic

Functions

Blood

De-Oxygenated Blood

Oxygenated Blood

Hormone regulation

Waste removal

Oxygen Transportation

Blood Circulation

Blood pressure

Nutrients

Anatomy

Heart rate

Pulmonary loop

Cardiac muscle

Pacemaker cells

Arteries

Coronary arteries

Veins

Vavles

Ventricles

Atrium