The CNS is protected by:
Correct answer: A. Three layers of meninges
- A. Three layers of meninges
- B. One layer of moninx
- C. 4 layers of meninges
- D. 2 layers of meninges
Explanation
The CNS is covered with three layers of protective coverings called meninges. The outermost layer is the dura mater having its primary function being the protection of the brain and the spinal cord. The dura mater also contains vein-like structures that carry blood from the brain back to the heart. The middle layer is the web-like arachnoid mater. The last layer is the pia mater, which directly contacts and covers the brain and spinal cord like plastic wrap. The space between the arachnoid and pia mater is filled with cerebrospinal fluid
Last updated
About Brain
The brain includes the cerebrum, cerebellum, brainstem, hypothalamus and medulla, each with distinct roles in sensation, movement and homeostasis. Questions connect major brain regions with their functions, reflex control and coordination, while distinguishing involuntary responses from hormonal regulation.
Practise Coordination and Control
1,687 free Coordination and Control MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Biology questions like this
Biology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A 50-year-old patient showing, symptoms of tremor, loss of motor movement, and muscle rigidity, is diagnosed with the death of neurons in the midbrain that normally releases dopamine.
A discharge by the brain that causes chaotic activity in motor and sensory areas is:
A neurological disorder characterized by a decline in brain function is _. Its symptoms are similar to those of diseases that cause dementia.
A sea slug normally responds to being poked by curling up. After being poked repeatedly the slug no longer curls up. This is an example of:
A slowly progressive disease of the brain that is characterized by the impairment of memory and eventually by disturbance in reasoning, planning, language and perception is one of the following?