Module 13 Part 2-Worm Parts and Functions Flashcards
Helps the worm grab the dirt as it burrows the the dirt
Setae
Lines that separate the sections of the worm
Segments
Responsible for controlling the organs and functions of the worm
Brain
The ventral surface of the body cavity
Coelom
Carries nerve impulses to the nerve ganglia
Nerve cord
Delivers nerve impulses to the individual segments and organ systems
Nerve ganglia
A small, nose-like protrusion on the head side of the worm that help the worm dig through the dirt and push dirt into its mouth
Prostomium
The worm’s mouth
Buccal Cavity
Acts as a suction pump to help pull the dirt into the digestive system
Pharynx
A holding sac for the dirt
Crop
Grinds dirt into fine particles, allowing nutrients to be filtered from the dirt
Gizzard
Absorbs nutrients into the bloodstream
Intestines
Releases waste from the body
Anus
Carries blood to the head
Dorsal blood vessel
Pumps blood throughout the body
Aortic arches