TRANSPORTATION
IN MAMMALS
Grade 10
Compiled by the All Things Biology team. Copyright ©.
, TRANSPORTATION IN MAMMALS
In humans, the circulatory system serves as the primary internal support network.
It delivers essential oxygen and nutrients to tissues while systematically removing
metabolic waste products like carbon dioxide.
COMPONENTS OF THE CIRCULATORY SYSTEM
Blood
Heart
vessels
Blood
Figure 1: The circulatory system in humans has three components (heart, blood
vessels and blood).
1. HEART
• The heart has four chambers to prevent
oxygenated & deoxygenated blood from
mixing (separated by a septum).
• Atria (left and right): Left atrium receives
oxygenated blood from lungs via Pulmonary
veins. Right atrium receives deoxygenated
blood from the body via Superior Vena Vaca.
• Ventricle (left and right): Left ventricle (thick
muscular wall) has enough force to pump
blood into the entire body via Aorta. Right
ventricle pumps deoxygenated blood to lungs
via Pulmonary artery.
Compiled by the All Things Biology team. Copyright ©.
IN MAMMALS
Grade 10
Compiled by the All Things Biology team. Copyright ©.
, TRANSPORTATION IN MAMMALS
In humans, the circulatory system serves as the primary internal support network.
It delivers essential oxygen and nutrients to tissues while systematically removing
metabolic waste products like carbon dioxide.
COMPONENTS OF THE CIRCULATORY SYSTEM
Blood
Heart
vessels
Blood
Figure 1: The circulatory system in humans has three components (heart, blood
vessels and blood).
1. HEART
• The heart has four chambers to prevent
oxygenated & deoxygenated blood from
mixing (separated by a septum).
• Atria (left and right): Left atrium receives
oxygenated blood from lungs via Pulmonary
veins. Right atrium receives deoxygenated
blood from the body via Superior Vena Vaca.
• Ventricle (left and right): Left ventricle (thick
muscular wall) has enough force to pump
blood into the entire body via Aorta. Right
ventricle pumps deoxygenated blood to lungs
via Pulmonary artery.
Compiled by the All Things Biology team. Copyright ©.