Heart (S04E16)
S04E16
Your heart tirelessly circulates blood throughout your body, every moment of every day, ensuring your survival. Roughly the size of your fist, it’s composed of unique muscle known as cardiac muscle. This specialized tissue enables your heart to maintain its rhythm and adjust its pace based on your body's requirements. Functioning as an automatic pump, your heart contracts to push blood through its four chambers and then relaxes. Valves, acting as one-way gates, ensure that blood flows smoothly in a single direction: from the heart to the lungs, back, and then out to the body.
Show
Beast Tamer
Episode
S04E16
Air Date
Feb 14, 1996
Season 4 Episodes
S04E01
Rivers & Streams
S04E02
Nutrition
S04E03
Marine Mammals
S04E04
Earthquakes
S04E05
NTV Top 11 Video Countdown
S04E06
Spiders
S04E07
Pollution Solutions
S04E08
Probability
S04E09
Pseudoscience
S04E10
Flowers
S04E11
Archaeology
S04E12
Deserts
S04E13
Amphibians
S04E14
Volcanoes
S04E15
Invertebrates
S04E16
Heart
S04E17
Inventions
S04E18
Computers
S04E19
Fossils
S04E20
Time