Earthworm model

What are Segments?

#2 → lines that separate the worm into little rings

What is the brain?

#3 → controls the entire organism

What is the nerve cord?

#4 → Carries nerve impulses from brain to nerve ganglia

What are nerve ganglia?

#5 → Receive impulses from the nerve cord and deliver it to segments

What is the Buccal cavity?

#8 → mouth of the worm

What is the pharynx?

#9 → suction pump to pull dirt into digestive system

What is the crop?

#10 → stores the dirt sucked in by pharynx until ready to pass on to gizzard

What is the gizzard?

#11 → very muscular organ, grinds dirt into fine particles allowing nutrients to be filtered

What is the anus?

#13 → in charge of release of waste from body → waste known as cast

What is the dorsal blood vessel?

#14 → carries blood from body to the head

What are the aortic arches?

#15 → arches that pump blood throughout the body

What are seminal vesicles?

#16 → makes sperm

What are Seminal receptacles?

#17 → receives sperm from other worm

What is the clitellum?

#20 → makes the eggs