Table 6.

Forces and attachment point for each force on the ith vibrissa

Force	Description	To (A^i,j)	From (B^i,j)
F_i¹	Extrinsic retractor muscles	(x_i^skin, y_i^skin)	(x₀^skin, y₀^skin)
F_i²	Posterior skin spring	(x_i^skin, y_i^skin)	(x_{i − 1}^skin, y_{i − 1}^skin)
F_i³	Posterior skin damper	(x_i^skin, y_i^skin)	(x_{i − 1}^skin, y_{i − 1}^skin)
F_i⁴	Anterior skin damper	(x_i^skin, y_i^skin)	(x_{i + 1}^skin, y_{i + 1}^skin)
F_i⁵	Anterior skin spring	(x_i^skin, y_i^skin)	(x_{i + 1}^skin, y_{i + 1}^skin)
F_i⁶	Superficial intrinsic muscle	(x_i^skin, y_i^skin)^a	(x_{i + 1}^int, y_{i + 1}^int)
F_i⁷	M. nasalis	(x_i^C, y_i^C)	(x_{i + 1}^C, y_{i + 1}^C)
F_i⁸	Deep intrinsic muscle	(x_i^int, y_i^int)	(x_{i − 1}^skin, y_{i − 1}^skin)
F_i⁹	Posterior plate spring	(x_i^plate, y_i^plate)	(x_{i − 1}^plate, y_{i − 1}^plate)
F_i¹⁰	Posterior plate damper	(x_i^plate, y_i^plate)	(x_{i − 1}^plate, y_{i − 1}^plate)
F_i¹¹	Anterior plate damper	(x_i^plate, y_i^plate)	(x_{i + 1}^plate, y_{i + 1}^plate)
F_i¹²	Anterior plate spring	(x_i^plate, y_i^plate)	(x_{i + 1}^plate, y_{i + 1}^plate)