Question

note on the
human brain​

Answer 1

Answer:

The brain is one of the largest and most complex organs in thehuman body.

•It is made up of more than 100 billion nerves that communicate in trillions of connections called synapses.

• The brain is made up of many specialized areas that work together:

•The cortex is the outermost layer ofbrain cells.

!!!!!!!!!!Please mark as Brainlist!!!!!!!!!!!!

❤❤❤❤❤❤❤❤❤❤❤❤❤❤

Answer 2

Answer:

The human brain controls nearly every aspect of the human body ranging from physiological functions to cognitive abilities. It functions by receiving and sending signals via neurons to different parts of the body. The human brain, just like most other mammals, has the same basic structure, but it is better developed than any other mammalian brain.

Explanation:

The human brain

• On average, an adult brain weighs between 1.0 kg – 1.5 kg. It is mainly composed of neurons – the fundamental unit of the brain and nervous system.
• Recent estimates have suggested that the brain contains anywhere between 86 billion to 100 billion neurons.

• The brain, along with the spinal cord, constitutes the central nervous system. It is responsible for thoughts, interpretation and origin of control for body

Where is the Human Brain located?

• Where is the Brain located?
• The brain is enclosed within the skull, which provides frontal, lateral and dorsal protection. The skull consists of 22 bones, 14 of which form the facial bones and the remaining 8 form the cranial bones. Anatomically, the brain is contained within the cranium and is surrounded by the cerebrospinal fluid.
• The Cerebrospinal Fluid (CSF) is a fluid that circulates within the skull and spinal cord, filling up hollow spaces on the surface of the brain. Every day, the specialised ependymal cells produce around 500mL of cerebrospinal fluid.
• The primary function of the CSF is to act as a buffer for the brain, cushioning mechanical shocks and dampening minor jolts. It also provides basic immunological protection to the brain.
• Furthermore, CSF provides buoyancy for the brain. i.e., the brain is suspended in a layer of CSF, wherein, the weight of the brain is nearly negated. If the brain is not suspended in CSF, it would be impeded by its weight, consequently cutting off the blood supply in the lower half of the brain. It would lead to the death of neurons in the affected area.

Parts of Human Brain

• Following are the major parts of the human brain:

• Forebrain – Largest part of the brain

It is the anterior part of the brain. The forebrain parts include:

Cerebrum

Hypothalamus

Thalamus

Forebrain Function: Controls the reproductive functions, body temperature, emotions, hunger and sleep.

Fact: The largest among the forebrain parts is the cerebrum. It is also the largest part of all vertebrate brains.

• Midbrain: Smallest and central part of the brain
• The midbrain consists of:
• Tectum
• Tegmentum

• Hindbrain: The lower part of the brain

The hindbrain is composed of:

• Cerebellum

Medulla

Pons

• Hindbrain functions: The three regions of the hindbrain coordinates all processes necessary for survival. These induce breathing, heartbeat, sleep, wakefulness and motor learning

HOPE THIS HELPS YOU :))

(click to see attached diagram)