Question

name the clear membrane that goes across the front of the eye.
○ sclera
○ lens
○ ciliary body
○ cornea
56 multiple choice 1 point
which of the following is not a function of the sympathetic nervous system?
○ increasing metabolism
○ releasing glucose into the blood
○ production of saliva
○ vasomotor function
57 multiple choice 1 point
which of the following contains csf in the spinal cord?
○ epidural space
○ subarachnoid space
○ dural space
○ pia mater

Explanation:

Question 55 (Top Question)

To identify the clear membrane at the front of the eye:

• Sclera: The white, tough outer layer (not clear, not front - facing for this role).
• Lens: Transparent but behind the iris, not the front - most clear membrane.
• Ciliary body: Involved in lens shape adjustment, not a front - facing membrane.
• Cornea: The clear, dome - shaped membrane covering the front of the eye (allows light entry).

Sympathetic nervous system (SNS) functions:

• Increases metabolism (prepares body for action).
• Releases glucose (provides energy for “fight - or - flight”).
• Vasomotor function (regulates blood vessel diameter).
• Saliva production: The parasympathetic nervous system (rest - and - digest) stimulates saliva; SNS typically reduces it, so “production of saliva” is not an SNS function.

CSF (cerebrospinal fluid) in the spinal cord:

• Epidural space: Contains fat/blood vessels, not CSF.
• Subarachnoid space: Between arachnoid and pia mater, filled with CSF in the spinal cord and brain.
• Dural space: Not a standard space with CSF (dura is a meningeal layer).
• Pia mater: Innermost meningeal layer, adheres to the spinal cord, not a CSF - containing space.

Answer:

D. cornea

Question 56