or log in
Humans have 4 types of teeth: incisors, canines, premolars and molars.
The reproductive system consists of organs which work together for the purpose of...
Synovial joints can be categorised by the direction of movement they allow.
This animation introduces the most important systems of the human body.
Bones of the lower limbs are connected to the trunk by the pelvis.
The reflex triggered by the stretching of the extensor muscle is the patellar reflex.
The limbic system plays an important role in forming emotions and in learning.
Our body´s internal support structure to which skeletal muscles are attached.