During spinal surgery it is possible to tear the , which is the outer protective layer. The is the middle protective layer. The closely covers the spinal cord. During childbirth, anesthesia is injected into the . When taking a sample of cerebrospinal fluid, a needle is inserted into the . The provides lateral support for the spinal cord. The supports the spinal cord inferiorly.

The question is incomplete. The complete question is as following:

Fill in the blanks with correct option:

During spinal surgery it is possible to tear the , which is the outer protective layer.

The is the middle protective layer.

The closely covers the spinal cord.

During childbirth, anesthesia is injected into the .

When taking a sample of cerebrospinal fluid, a needle is inserted into the .

The provides lateral support for the spinal cord.

The supports the spinal cord inferiorly.

Filum terminale

Dura mater

Arachnoid mater

subarachnoid space

pia mater

Denticulate ligament

Epidural space

Dura mater, Arachnoid mater, pia mater, Epidural space, subarachnoid space, Denticulate ligament, Filum terminale

Explanation:

The spinal cord is a long, thin, tubular structure composed of nervous tissue, stretching from the medulla oblongata in the brainstem to the vertebral lumbar region. It encloses the spinal cord's central canal, which contains cerebrospinal fluid.  

Dura mater is the rigid outermost membrane that envelops both the brain and the spinal cord and which tear during spinal injury. Arachnoid mater is the second meningeal layer and the middle protective layer of spinal cord. Pia mater is a thin meningeal layer located just above the backbone and all the bood vessels in spinal cord are place by pia mater. Epidural space consist of adipose tissue to pad the spinal cord and anesthesia is injected into it during childhood. The space between the underlying pia mater and the arachnoid is called the subarachnoid space which includes cerebrospinal fluid to protect the spinal cord and to cushion it. Denticulate ligament provides lateral support for the spinal cord. Filum terminale extension of the pia mater that supports the spinal cord inferiorly.

Hence, the correct order for the blanks is Dura mater, Arachnoid mater, pia mater, Epidural space, subarachnoid space, Denticulate ligament, Filum terminale.