SWS, 
SSs 
Fig. 38 Sagittal section through the ventral wall of the ear capsule and facial 
canal, showing the vestigial muscle (sh.) which has its origin on the fascia ventral 
to the quadrate (qu.) and its insertion on the ceratohyal cartilage (chy.). Its 
innervation by a branch of the palatinus caudalis (pc.) is shown. X30. 
Fig. 39 Sagittal section through the posterior border of the left ear capsule 
and the vagus ganglion. To show the ganglion of the supratemporal root of 
the vagus nerve. X50. 
303 
