The Miracle of the Human Brain
Introduction:
The important part of the human body that contains the center of all
nerves and coordination commands and hormones came from the brain. The brain is
part of the central nervous system with the spinal cord that creates and moves
the impulses and the hormones coordination for human life and wellbeing. The
brain consists of parts; each part is responsible for a certain task in the
body. Even there were parts of the brain responsible for hormonal production
and management of other hormones in humans. Moreover, the research studies on the
human brain and identifies the difference between genders thinking and the brain
development of each gender that affect behavior, understanding, and attitudes.
As the brain consists of 60% of fat and 40% of water, carbohydrates,
proteins, and salts.
https://youtu.be/zHLGLeN7NgM
Parts of the human brain and functions:
There were many parts of the brain and each part is responsible for a
certain function to be done.
The frontal lobe, parietal lobe, temporal, occipital lobe (cerebrum):
This brain part is the largest part that contains frontal lobe, parietal
lobe, temporal lobe, and occipital lobe. The function of the cerebrum is
movement coordination with temperature regulation, speech, critical thinking
and judgment with problem-solving, learning with short-term memory, and senses
of vision, hearing, and touch.
Brainstem:
The brainstem part of the brain located in the middle of the brain connects
the cerebrum with the spinal cord and contains three parts:
1-
The midbrain’s complex structure and
function involve hearing, movements, and coordination.
2-
The pons involves twelve cranial nerves
that are responsible for chewing, focusing, vision, balance, hearing, and
facial expressions.
3-
The medulla is located at the bottom of the
brain stem and meets with the spinal cord. The function of the medulla is the
regulation of body activities like heart beats and rhythms, breathing, oxygen
and CO2 levels in the blood, coughing, sneezing, and swallowing.
Cerebellum:
The cerebellum is located in the back side of the brain and the function
of the cerebellum is muscle movements with coordination and posture
maintenance, equilibrium with balance, thoughts, emotions, and behaviors. Also,
the occipital lobes are responsible for vision.
The nervous system in the brain:
The brain consists of many nerves and neurons that are composed of white
matter and gray matter that send and receive messages from the body when
feeling pain or anxiety.
Cranial nerves of the brain:
The brain consists of twelve cranial nerves that each nerve is
responsible for sending and receiving messages into or out of the body that
are:
1-
The
olfactory nerve is the cranial nerve 1 that is responsible for the sense of
smell.
2-
The
optic nerve that responsible for eyesight and its 2nd cranial nerve.
3-
The
oculomotor nerve is the 3rd cranial nerve responsible for pupil
control and eye motions.
4-
The
trochlear nerve is the 4th cranial nerve responsible for muscle
control of the eyes.
5-
The
trigeminal nerve is the largest cranial nerve and is the 5th cranial
nerve responsible for the sensation of the scalp, jaw, teeth, mouth, and face.
6-
The
abducens nerve is the 6th cranial nerve responsible for eye muscles.
7-
The facial nerve is responsible for the
movement of the face, taste, and glandular and it’s the 7th cranial
nerve.
8-
The
vestibulocochlear nerve is the 8th cranial nerve is responsible for
hearing and balance.
9-
The
glossopharyngeal nerve is the 9th cranial nerve and is responsible
for movements of the throat, and taste.
10-
The
vagus nerve is responsible for the sensation of the digestive system and motor
activity control of the heart, and throat, with the digestive system and its 10th
cranial nerve
11-
The
accessory nerve is the 11th cranial nerve that is responsible for
the movements of the head, neck, and shoulder muscles.
12-
The hypoglossal nerve is responsible for
tongue motor activity and it’s the 12th cranial nerve.