Do a spider have a heart?

The trachea holes and the book lungs are the inlets for oxygen. These holes are situated at the underside of the abdomen. The number of trachea and book lungs and their position varies from family to family.

At the front dorsal side of the abdomen is the heart spotlocated. Below this spot is the Spiders heart. Big spiders have a heart beat around 30 - 70 beats a minute whereas in smaller spiders the heart beat can rise up to 200 beats per minute.

The internal anatomy of a female