Earthworm dissection

Clitellum

Produces mucus during reproduction and forms cocoon for eggs

Integument

Outer protective covering used in protection and gas exchange

Mouth

Ingests soil and organic matter

Anus

Expels undigested waste

Setae

Small bristles that help with movement and anchoring in soil

Pharynx

Muscular structure that sucks in food

Esophagus

Transports food to crop

Crop

Stores food temporarily

Gizzard

Grinds food using ingested particles

Intestine

Site of chemical digestion and nutrient absorption

Hearts

Pump blood through circulatory system

Dorsal blood vessel

Main vessel that carries blood towards the anterior end

Body wall

Provides protection and structure; includes cuticle and epidermis

Coelom

Fluid-filled cavity that allows organ movement and acts as a hydrostatic skeleton

Intestine

Digestive tube for absorption of nutrients

Typhlosole

Fold in intestine that increases surface area for absorption

Ventral nerve cord

Main nerve pathway controlling movement and responses

Seminal vesicles

Produce and store sperm

Seminal receptacle

Store sperm received from another worm

What structure is this pointing to?

Clitellum

What structure is this pointing to?

Pharynx

What structure is this pointing to?

Crop

What structure is this pointing to?

Gizzard

What structure is this pointing to?

intestine

What structure is this pointing to?

Seminal vesicles

What structure is this pointing to?

Seminal Recepticle

What structure is this pointing to?

Heart

What structure is this pointing to?

Dorsal blood vessel

What structure is this pointing to?

Subraphyenal Ganglia

What structure is this pointing to?

Ventral Nerve Cord

What structures is the top arrow pointing to?

Dorsal blood vessel

What structure is the 2nd arrow from the top pointing to?

Typhlosole

What is the 3rd arrow from the bottom pointing to?

Intestinal Lumen

What is the 2nd arrow from the bottom pointing to?

Ventral blood vessel

What is the bottom arrow pointing to?

Ventral nerve cordsd