dermal papillae
percussion
Gyri
The cortex
The mid-ocean ridge is a volcanic feature caused by the spreading apart of oceanic plates as part of plate tectonics, and is initially formed as a result of changes in the convection currents which seek the least resistant point to the surface. The sea floor at the ridges are uplifted by rising magma. The rising magma is part of a process of heat transfer from the interior of the Earth to the surface known as a convection current. As the rising magma cools, it forms new crust which becomes part of the ridge.
Lugs
The frontal bone contains what is commonly known as eyebrow ridges. This bone is part of the skull.
It is part ridges.
friction ridges
The technique is called percussion.
how do earquakes originate. they are caused by tectonic plates shifting beneath the surface of the earth. the movement causes part of the surface to shake which we call earthquakes.
Papillary Layer
The fingers.