inferior sagittal sinus n.
An unpaired dural sinus in the lower margin of the falx cerebri.
- Inferior salivary nucleus
inferior salivary nucleus n. A group of preganglionic parasympathetic motor neurons located in the medulla oblongata dorsal to the ambiguous nucleus; its axons govern secretion from the parotid gland by way of the otic ganglion.
- Inferior tarsal muscle
inferior tarsal muscle n. A poorly developed smooth muscle in the lower eyelid that acts to widen the palpebral fissure.
- Inferior temporal line
inferior temporal line n. The lower of two curved lines on the parietal bone, marking the limit of attachment of the temporal muscle.
- Inferior temporal sulcus
inferior temporal sulcus n. The sulcus on the basal aspect of the temporal lobe, separating the fusiform gyrus from the inferior temporal gyrus on its lateral side.