Department of Neurobiology, the Weizmann Institute of Science, Rehovot, Israel.
Anat Rec (Hoboken). 2013 Dec;296(12):1821-32. doi: 10.1002/ar.22822. Epub 2013 Oct 29.
The rhinarium is the rostral-most area of the snout that surrounds the nostrils, and is hairless in most mammals. In rodents, it participates in coordinated behaviors, active tactile sensing, and active olfactory sensing. In rats, the rhinarium is firmly connected to the nasal cartilages, and its motility is determined by movements of the rostral end of the nasal cartilaginous skeleton (NCS). Here, we demonstrate the nature of different cartilaginous regions that form the rhinarium and the nasofacial muscles that deform these regions during movements of the NCS. These muscles, together with the dorsal nasal cartilage that is described here, function as a rhinarial motor plant.
鼻前嵴是鼻口周围最前端的区域，大多数哺乳动物的鼻前嵴无毛。在啮齿动物中，它参与协调行为、主动触觉感知和主动嗅觉感知。在大鼠中，鼻前嵴与鼻软骨牢固相连，其运动由鼻软骨骨架（NCS）的前端运动决定。在这里，我们展示了形成鼻前嵴的不同软骨区域的性质，以及在 NCS 运动过程中使这些区域变形的鼻面肌。这些肌肉与本文所述的背侧鼻软骨一起作为鼻前嵴运动装置发挥作用。
