人类的眼行为是由orbicularis oculi的细分神经控制驱动的
Jinyoung Kim1, Ashley Shirriff2, Jordan N Cornwell2
1Department of Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA 90095.
概括
眼是眼皮的部分.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 生物力学 生物力学
背景情况:
- 眼的保护功能依赖于眼肌 (OO) 肌肉,这是一个独特的圆形骨肌肉,具有扩散的内化.
- 目前对眼运动学的理解是有限的,主要以一个维度 (开放-关闭) 建模,忽视了潜在的细分激活.
- 序列神经激活模式与OO的差异性肌肉收缩之间的关系尚不清楚.
研究的目的:
- 为了研究不同行为的眼运动的二维动力学.
- 为了确定orbicularis oculi (OO) 肌肉的细分激活模式是否在行为上有所不同.
- 阐明细分肌肉激活如何产生行为特异性的眼运动.
主要方法:
- 使用分布式肌内电肌图来记录肌肉激活.
- 分析了双维的眼动力学.
- 与观察到的眼运动相关的细分OO激活模式.
主要成果:
- 眼运动表现出显著的二维特征,这些特征因不同的行为而有所不同.
- 眼圈 (OO) 肌肉的激活是分段差异化的.
- 分段性OO激活的特定模式动态产生不同的,行为依赖的眼动力学.
结论:
- 眼 (OO) 肌肉的细分激活在产生复杂的眼运动中起着至关重要的作用.
- 精确的神经控制为自然的眼行为编排这些细分激活模式.
- 这些发现为眼功能机制模型提供了基础,并对治疗眼麻有意义.
相关概念视频
Muscles of the Eye
1.9K
The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and...
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and...
1.9K
Accessory Structures of the Eye
1.9K
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
1.9K
Muscles for Facial Expressions
2.7K
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
2.7K
Mechanism of Ciliary Motion
3.9K
The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...
3.9K
Fascicle Arrangement in Skeletal Muscles
2.4K
Fascicles are bundles of muscle fibers in a skeletal muscle. Muscle fascicle arrangement is directly associated with the power and range of motion of various muscles. The configuration of these fascicles can vary, leading to different functional outcomes.
The four primary types of muscle based on fascicle arrangement are:
The four primary types of muscle based on fascicle arrangement are:
2.4K
Cranial Nerves: Types Part I
3.1K
Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves, with the first six being essential in sensory perception, motor control, and autonomic functions related to the head and neck.
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
3.1K


