Key Difference – Brainstem vs Spinal Cord
Brainstem and spinal cord are two closely situated parts of thenervous systemthough there exists a difference between them based on physiology and functions. The nervous system is the network of nerve cells and nerve fibers that control many activities of the body through nerve signals. Thekey differencebetween brainstem and spinal cord is that thebrainstem helps to control the motor and sensory functions头部和某些复杂功能脊髓carries nerves to and from the brain throughthe brainstem and to the rest of the body. This article aims to discuss the difference between the brainstem and spinal cord.
What is the Brainstem?
Brainstem links spinal cord with thebrainthrough nerve fibers and is crucial for many nerve functions. It is subdivided into the medulla, oblongata, pons, and midbrain. Mostcranial nerves, which transmitsensory and motor与核群的信息相连,并附在脑干上,并有助于控制头部的运动和感觉功能。脑干controls certain complex functions such as respiration, cardiovascular regulation, consciousness, and sleep。
What is the Spinal Cord?
The spinal cord is a long tubular bundle of nerves that arises from the brainstem and extends down through the vertebral column until it reaches the space between first and secondlumbar vertebrae。它是central nervous system(the other part is brain). Themain role of the spinal cord is carrying nerve impulses to and from the brain through the brainstem to the rest of the body。脊髓封闭在vertebral column (backbone),可保护免受振动和其他伤害。另外,它还受到称为脑膜的三个组织层的保护。神经来自脊髓spinal nerves。Based on the regions where spinal nerves arise through vertebral column, there are three types of spinal nerves; (a)cervical nervesthat control respiration and carry nerve impulses to arms, neck and upper trunk, (b)thoracic nervesthat carry nerve impulse to trunk and abdomen, and (c)lumbar nerveswhich carry nerve impulses to bladder, bowel and sexual organs.
What is the difference between Brainstem and Spinal Cord?
防守柔和of Brainstem and Spinal Cord
Brainstem:它是大脑的茎状部分,包括髓质长圆形,中脑和pons varolii。
Spinal Cord:It is the cord of nerve tissue extending through the spinal canal of the spinal column.
Features of Brainstem and Spinal Cord
地点
Brainstem:脑干is the part in between the spinal cord and brain.
Spinal cord:The spinal cord is connected to the brain via brainstem and runs down through the vertebral column.
Function
Brainstem:It helps to control the motor and sensory functions of the head, certain complex functions such as respiration, cardiovascular regulation, consciousness, and sleep.
Spinal cord:它通过脑干和身体的其余部分带来神经向外的神经。
脊髓是中枢神经系统的主要部分,而脑干是大脑的一个子部分,这是中枢神经系统的另一部分。
Structure
Brainstem:Brainstem consists of medulla, oblongata, pons, and midbrain
Spinal cord:There are 31 pairs of spinal nerves in the spinal cord. The centre of the cord containsgrey matterwhich contains the cell bodies of neurons, and the outer part of it contains white matter, which contains nerve fibers arising from the neurons.
Image Courtesy: Blausen.com工作人员的“ Blausen 0114 Brainstemanatomy”。自己的工作。(CC BY 3.0)viaCommons “Diagram of the spinal cord CRUK 046” by Cancer Research UK – Original email from CRUK.(CC BY-SA 4.0)viaCommons
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