Five Major Structures of the Brain
There are many different structures of the brain. Each part of the brain works together in order to allow a person to function, feel, respond, think, and even process information. Each second of every single day, a person’s brain is obtaining information, including that information that we don’t even realize it is taking. It tells you when to blink, when to cough, when to sneeze, and when to breath in order to keep you alive. There are five major structures of the brain that I will be discussing in this though that fits along with psychology and how a person is studied for the likes of psychology.
The first structure that I will be speaking about is ...view middle of the document...
With damage to this particular part, people also experience difficulty in making decisions as well as the use of language correctly. This tells that the cerebellum is not limited to just sensorimotor control.
Mesencephalon is the third structure of the body that I will discuss. This also has two divisions, just like the metencephalon. These two divisions are called the tectum and the tegmentum. The tectum is the dorsal surface of the midbrain. When you look at mammals, the tectum is made up of two pairs of bumps. The posterior pair of bumps is called the inferior colliculi. These have an auditory function. The anterior pair is called the superior colliculi. The anterior pair has visual function. This is why the tectum is sometimes referred to as the optic tectum.
The tegmentum has three colorful structures that are particularly interesting to biopsychologists. These three structures are the periaqueductal gray, the substantia nigra, and the red nucleus. The periaqueductal gray is of special interest to biopsychologists because of the role it has in mediating the pain-reducing effects of opiate drugs. The substantia nigra holds of special interest because of the same reason as the red nucleus. This is because of their roles in and how they are important components of the sensorimotor system.
Deincephalon is the next structure that I will discuss. This is composed of two structures as well. The structures are the thalamus and the hypothalamus. The thalamus is a large, two lobed structure that sits at the top of the brain stem. One of the lobes sits on one side of the third ventricle, while the other sits on the opposite side of it. Both lobes are joined by the massa intermedia. This runs through the ventricle. White laminas are layers that are visible on the thalamus and are composed of myelinated axons.
Many different pairs of nuclei are comprised by the thalamus. Most of these nuclei projects to the cortex. Along with these nuclei are the ones that are most understood....