Lowers
Increase

Heart

Anatomy

Atrium

Ventricles

Vavles

Veins

Arteries

Coronary arteries

Pacemaker cells

Cardiac muscle

Pulmonary loop

Heart rate

Functions

Blood Circulation

Nutrients

Blood pressure

Oxygen Transportation

Waste removal

Hormone regulation

Blood

Oxygenated Blood

De-Oxygenated Blood

Main topic

Respiratory system

Oxygenation

Carbon dioxide removal

Capillaries

Lungs

muscular System

Muscle Cells

Disease

Coronary Heart Disease

Nervous system

sympathetic nervous system

Flight or fight

parasympathetic nervous system

Digestive system

gut microbiome

Vagus Nerve

Brain