Question

Outermost covering of brain is
A. Piamater
B. Duramater
C. Choroid
D. Arachnoid mater

Answer 1

Hint: The brain is one of the largest and most complex organs of the human body. The thick protective layer, tough in nature. It protects the brain from being scraped and hurt by the skull.

Complete answer:
The human brain is the central organ of the human nervous system and the spinal cord makes up the central nervous system. It is made up of more than a 100billion nerves that communicate in trillions of connections called the synapse. The cortex is the outermost layer of brain cells. Thinking and voluntary movements begin in the cortex. The brain consists of the cerebrum, the brainstem, and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs and makes decisions to the instructions sent to the rest of the body.
The brain is also divided into several lobes:
The frontal lobe is responsible for problem solving and judgment and motor function.
The parietal lobes manage sensation, handwriting, and body position.
The temporal lobes are involved with memory and healing.
The occipital lobes contain the brain’s visual processing system.

The brain (cerebrum, cerebellum, and brainstem) is surrounded by a layer of tissue called the meninges. Meninges do many important things for the central nervous system, and can easily cause bleeding or infections. The membranes are
The tough Dura mater:
It is the outermost layer, tough, white fibrous connective tissue. The dura mater protects the brain from being scraped and hurt by the skull, which is rough. Dura mater has the largest blood vessels of all three layers of meninges. The arteries present here split into capillaries in the pia mater.
The middle Arachnoid mater:
A thin layer resembling a cobweb with numerous threadlike strands attaching it to the innermost layer. It is attached to the dura mater. The important job of the arachnoid mater is the blood barrier system and the other is it acts as a cushion to the brain. Without the cushion, every time a person moves their head, their brain would hit inside of the skull and would get hurt.
And the most delicate inner Pia mater:
It is the innermost layer, a thin delicate membrane is tightly bound to the surface of the brain and spinal cord and cannot be dissected away without damaging the surface. The smallest types of blood vessels are present here. It stays close to both the brain and spinal cord. Pia mater also allows glucose, water, and white blood cells which are important for the survival of the brain. It helps to block things like bacteria and some poisons from getting into the brain.
Between the arachnoid mater and pia mater is the subarachnoid space, which contains cerebrospinal fluid and blood vessels.
Functions of the brain :
> Motor control
> Sensory
> Regulation
> Language
> Lateralisation
> Emotion
> Cognition

The answer is dura mater.

Note:
Brain, the mass of nerve tissue in the anterior end of an organism. The brain is made up of many specialized areas that work together. The skull helps protect the brain from injury. Pia mater is medieval Latin meaning tender mother.