Ström D, Holm S, Clemensson E, Haraldson T, Carlsson G E
Department of Stomatognathic Physiology, Faculty of Odontology, University of Göteborg, Sweden.
Arch Oral Biol. 1988;33(8):597-604. doi: 10.1016/0003-9969(88)90135-5.
The craniomandibular joint (CMJ) and masticatory muscles in 15 dogs (Canis familiaris) were dissected. The major structures were fossa, disc and condyle surrounded by a thin fibrous capsule. The horizontally orientated temporal fossa had a pronounced tubercle anteriorly. Posteriorly, a retroarticular process curved backwards. This fossa and process closely surrounded the condyle. The disc was thin. The cylindrically-shaped condyle was elongated in the medio-lateral direction, situated at right angles to the sagittal plane. The lateral pterygoid muscle was poorly developed; the temporalis was by far the largest masticatory muscle. These findings support the assumption that the movements of the canine mandible are mainly hinge-like. Furthermore, the canine CMJ differs in many respects from the corresponding anatomical structures in the domestic pig, as well as in man.
对15只犬（家犬）的颅下颌关节（CMJ）和咀嚼肌进行了解剖。主要结构包括窝、盘和髁突，周围有一层薄的纤维囊。水平方向的颞窝前部有一个明显的结节。后部，一个关节后突向后弯曲。这个窝和突紧密围绕着髁突。盘很薄。圆柱形的髁突在内外侧方向上拉长，与矢状面成直角。翼外肌发育不良；颞肌是迄今为止最大的咀嚼肌。这些发现支持了犬下颌运动主要类似铰链运动的假设。此外，犬的颅下颌关节在许多方面与家猪以及人类相应的解剖结构不同。
