Question at position 1 Following a subarachnoid hemorrhage, a patient presents with severe headache. Blood is putting pressure on the innermost meningeal layer that closely adheres to the surface of the brain. Which meningeal layer lies directly adjacent to the brain tissue?Dura materPia materArachnoid mater

Question

Question at position 1 Following a subarachnoid hemorrhage, a patient presents with severe headache. Blood is putting pressure on the innermost meningeal layer that closely adheres to the surface of the brain. Which meningeal layer lies directly adjacent to the brain tissue?Dura materPia materArachnoid mater

BlackTom AI · Accepted Answer

The question asks which meningeal layer is directly adjacent to brain tissue, i.e., the layer that lies closest to the brain itself.
Option 1: Dura mater. The dura mater is the outermost, tough protective layer that lines the skull, not directly adherent to brain tissue. It sits outside the arachnoid mater and separates from the brain, so this option is incorrect for the layer directly contacting the brain.
Option 2: Pia mater. The pia mater is the delicate innermost layer that adheres intimately to the brain’s surface, following all the contours of the gyri and sulci. This is the layer that lies directly on the brain tissue, making it the correct choice for the described location.
Option 3: Arachnoid mater. The arachnoid mater is the middle, web-like layer between the dura and pia. It does not contact the brain tissue directly but sits between the pia and dura, separated from the brain by the subarachnoid space containing cerebrospinal fluid. Therefore, it is not the layer directly adjacent to brain tissue.
In summary, understanding the anatomical arrangement from outer to inner membranes is: skull, dura mater, arachnoid mater, and pia mater, with the pia mater directly contacting the brain. This confirms why the pia mater is the layer described in the question.

查看解析

登录即可查看完整答案

类似问题

__ and the are extensions of pia mater.

Question at position 44 Which of the following is true regarding the dura mater? It is the innermost layer of the meninges.It is tightly attached to the brain. It is the primary location of CSF circulation.It contains large veins within its folds.

The innermost meningeal layer is called the:

The brain and spinal cord are protected by the

Which of the following shows the correct order of meningeal layers of the brain (from closest to the outermost layer)

The most delicate of the meninges consists of elastic and collagen fibers and is known as the

During brain surgery, surgeons must cut through the scalp and a thick, leathery layer of the meninges in order to reach the brain. What is the name of this layer?

What meninge or cistern is number 1?

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单