Mediastrium between the lungs
A flea does not have a heart. They have 9 parts, just not a heart. head, eyes, mouth parts, legs, claws, thorax, antenna, abdomen, genitalia.
The middle thorax in humans refers to the central region of the chest, situated between the upper thorax (which includes the area above the clavicles) and the lower thorax (below the ribcage). It generally encompasses the area around the sternum and the ribs, housing vital organs such as the heart and lungs. The middle thorax is bordered laterally by the ribcage and posteriorly by the thoracic spine.
The thymus gland is in the upper thorax anterior to the heart.
a shrimp's heart is in the thorax, which is right under the head, but normal people would consider the thorax part of the head.
heart and lungs
Heart and lungs
Yes. The thorax is a body division. In humans the thorax lies between the neck and the abdomen. It houses the heart and lungs.
The heart of a cricket is located in the thorax between the lungs.
Heart sounds are created by the relationship between the valves of the heart and the surface of the thorax.
Abdomen.
Thymus
in the left part of the thorax