The Circulatory System

Function of System:

Circulates blood, nutrients, hormones, oxygen, and other substances throughout the body.

How it aids in homeostasis:

Helps to fight diseases, maintains internal body temperature, and maintains proper pH.

Image of system:

Major Organs:

Heart - Pumps the blood throughout the body.
Arteries - Carry blood away from the heart.
Veins - Carries blood toward the heart.
Blood - Contains hemoglobin which aids in oxygen transport.

Human Heart: Four chambers

Comparative Anatomy:

Human hearts have four chambers. Frogs have three chambers. The fish heart only has an atrium and a ventricle. Blood is transported from the heart to the Arteries through Arterioles and then to the capillaries, it comes back to the heart through venules and then to veins. All three organisms have closed circulatory systems.

Fish: Two chamber heart

Frog: Three chamber heart

Reference sources (APA):

Esi.stanford.edu. N.p., n.d. Web. 12 Apr. 2017. " Ribbiting Facts on the Human and Frog Circulatory and Respiratory Systems." Emaze Presentations. N.p., n.d. Web. 12 Apr. 2017.

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