Afferent impulses in the oculomotor nerve, from the extrinsic eye muscles

Working Model of the Extrinsic Eye Muscles.

IT is not easy for beginners to understand the actions of the extrinsic ocular muscles by simple reference to the geometry of their arrangement and attachments. A working model has been designed which has been found useful for demonstrating these actions, both singly and in groups. The requirements of a satisfactory model are that it should be large enough for movements to be easily seen and th...

Muscle spindles in human extrinsic eye muscles.

The oculomotor system of decapod cephalopods: eye muscles, eye muscle nerves, and the oculomotor neurons in the central nervous system.

Fourteen extraocular eye muscles are described in the decapods Loligo and Sepioteuthis, and thirteen in Sepia; they are supplied by four eye muscle nerves. The main action of most of the muscles is a linear movement of the eyeball, only three muscles produce strong rotations. The arrangement, innervation and action of the decapod eye muscles are compared with those of the seven eye muscles and ...

Abnormalities of the oculomotor nerve in congenital fibrosis of the extraocular muscles and congenital oculomotor palsy.

PURPOSE High-resolution magnetic resonance imaging (MRI) can now directly demonstrate innervation to extraocular muscles and quantify optic nerve size. A quantitative MRI technique was developed to study the oculomotor nerve (CN3) and applied to congenital fibrosis of extraocular muscles (CFEOM) and congenital oculomotor palsy. METHODS The subarachnoid portions of the CN3s were imaged with a ...

[Neural mechanisms of jaw and tongue movements induced by afferent impulses from masticatory muscles].

われわれヒトを含めて哺乳類の身体は,皮 膚 に よって外部環境から隔てられた 個体 を形成 してお り,皮 膚にある外受容器 と眼,耳,鼻 にある遠隔 受容器によって外部環境の変化 を刺激 として受容 し,そ れに対する反応 として行動 を起す。この行 動は骨格筋の収縮によって実現 されるもので,外 部環境に対する個体 としての反応は,身 体内部の 筋,腱,迷 路にある固有受容器に対する刺激 とな り,こ れ らの受容器から身体の運動 と位置に関す る情報が中枢に送 られる(Sherrington1947)91)。 筋紡錘および腱紡錘は筋 と腱に存在する代表的な 固有受容器であり,こ れ らからの情報によって, 運動の円滑な遂行が反射性に制御 されていること が,多 数の研究者によって 明らかに されて いる (Matthews196463),Granit197027),Matthe...