The human brain is the most complex of all living structures, for processing sensory information while coordinating and maintains vital body functions. Up to a billion nerve cells (neurons) are working together through electrical impulses to coordinate physical activities and mental processes that distinguish the human being from other species. So to make it easy to learn, here it is the Brain Diagram Labeled to study.
It is a gelatinous mass that weighs about 1.4 kg, depending on body weight and sex of each person (however, there is no connection between the weight of an individual ‘s brain and intelligence).
Together with the spinal cord, the human brain is the central nervous system (CNS).
Skull and 3 membranes called meninges with cerebrospinal fluid, allow the brain to stay protected from blows to its 4 lobes:
- Frontal Lobe: located behind the forehead, is responsible for much of the complex thought (imagination, planning and behavior).
- Parietal lobe: located at the top rear of the frontal lobe. Houses the sensory cortex (processes related to touch, taste and temperature messages) and the motor cortex (controls movement).
- Temporal lobe: located behind each temple; home to the auditory cortex and is responsible for language comprehension also involved in memory and emotions.
- Occipital lobe is at the back of the head; controls the visual cortex that processes what we see.
- Cortex: fabric layer that forms the outer covering of the brain, whose thickness ranges from 2 to 6 mm. In larger mammals like humans, this bark looks with bumps and grooves that provide additional space to store all important information about the body.
- The two brain hemispheres (left and right) are connected by the corpus callosum located within the cerebral cortex.
- Cerebellum: structure the size of a walnut at the base of the skull, under the occipital lobe. Coordinates functions like balance, movement, coordination and language acquisition.
- Thalamus: receives information from the body and the various sensory organs, which filters before sending it to bark to avoid brain overload. Conversely, the cortex sends information to the thalamus for transmission to other areas of the brain and spinal cord. It is also known as “door of consciousness” or “gate of the cerebral cortex.”
- Hypothalamus gland that controls vital body functions such as sleep cycle, thirst, body temperature and pain sensations. Along with the pituitary gland, it is a link between the hormonal and nervous system.
- Hippocampus: area located inside the temporal lobe is important for memory and learning.
- Brainstem is located at the base of the human brain and connects to the spinal cord. It consists of 3 areas: mesenscefalo, pons and medulla oblongata, which allow the brain to communicate with the rest of the central and peripheral nervous system.
- The medulla controls reflex actions (functions that the body does automatically), such as breathing, heart rate, blood pressure, swallowing, digestion and flicker.
- Pituitary (gland) is responsible for releasing hormones or hormone precursors. Along with the hypothalamus, connects the organs related to hormones or endocrine organs (mammary glands, ovaries, adrenal, thyroid and testes).
- Spinal cord: part of central nervous system begins in the lower area of the brain and extends along the spine. Connects the brain to the nerves that reach the rest of the body. Their nervous tissues are about 45 cm long and just under 2 cm thick, forming the peripheral nervous system.
Now that you know the structures and functions of the brain, you know why they call it “the perfect machine.”
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