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Brain
The center of our nervous system and daily thoughts, the brain is a complex, magnificent organ. Ask questions about parts of the brain and their functions here.
2,537 Questions
The activity of the hypothalamus most directly influences?
The hypothalamus directly influences the nervous system and the endocrine system. The hypothalamus uses the pituitary gland to link those 2 systems together.
nerves in your body transmit the info to your brain but many other systems are involved in the process. But that's the main one.
A person whose brain suffers from a dysregulation of the serotonin system might suffer from?
epilepsy
Yes.
Yes they do have a brain everything that is living has a brain.
mi_ch_ae_la_7 says:
Actually that's not completely true... Trees for instance do not have brains, yet they are living. I think the question is relevant to an actual brain in the anatomy, not a metaphorical brain of a living thing. Another living thing that does not have a brain is fungi, it's still living, yet has no brain. An amoeba? Also does not have brain. Cells do not have brains. I think I've proven my point. Thank you.
The removal of a bone flap near the skull in order to access the brain.
Lol. Technically, sure if you're in a fire, or too close to the Sun. Otherwise, no. However, you can lose connections between cells within the brain that "zap" info to other parts of your brain that make you respond. This happens with age. It is believed that long term marijuana smoking does this. Science has shown that you can improve the connections with different brain exercises, such as improving memorization skills (numbers, letters, and object placements), concentration kinds of games, and other knowledge builders.
Is the hypothalamus in the forebrain?
Good question, in order to solve this question lets look at the functions of the hypothalamus:
- The Hypothalamus controls your body's internal organs and ANS (autonomic nervous system)
- It also regulates the pituitary glands ( which are responsible for things like water concentration in your body and thyroid)
- The Hypothalamus also controls and maintains body temperature, blood pressure, and water levels ( done through the pituitary glands)
-it also controls thirst,hunger, and sex drive and produces hormones like aDH.
I guess when you look at all the functions of the hypothalamus without it you'd be dead in no time, therefore, I'd say you could classify it as the brain of the brain in conjugation with the medulla oblongata (which is a part of the brain responsible for breathing and heart rate)
What is foci of T2 hyperintensity in the subcortical and periventricular white matter?
This phrase is a statement that would be used by a radiologist when reviewing the results from a MRI. Breaking down the phrase by individual parts:
T2 - An indication of the type of scan that was done. In a T2-weighted scan, areas that are fluid-filled appear bright, while areas that are fatty appear dark. A T1 scan would show the opposite results.
Hyperintensity - An indication of a bright region on the scan.
Foci of T2 Hyperintensity, therefore, means "focal points, or concise areas, of very bright spots."
Subcortical and periventricular white matter - These are locations within the brain. Regions of the brain are categorized by color (white matter or grey matter) and location (cortical, or related to the cortex, subcortical, or below the cortex, etc).
The statement, therefore, means "white spots on a MRI scan at certain locations within the brain."
This statement alone does not indicate any particular disease is present. It is a piece of information that a neurologist would use to help determine whether or not someone had a certain disease or condition. There are many conditions or diseases which can cause white spots on the brain; only a neurologist can sort through the possibilities and determine what caused these white spots.
Which part of the brain controls mental processes?
The medulla oblongata is located at the base of the brain and controls breathing, heartbeat etc.
What are some methods for studying the brain?
Living brains are studied by means of an MRI (Magnetic Resonance Imaging) and dead brains are studied by means of autopsy. Countless different experiments are in progress to explore different aspects of neurphysiology, neurochemistry, and neuropsychology.
How long can a brain dead person live?
Sadly while their body can continue to go on with the help of machines, their mind, their personality, and all other parts of them mentally are already gone. Once a doctor has pronounced a person brain dead he is sure of his findings and this is something that cannot be reversed. There is no blood flow in their brain and their brain does not react in any way to stimulation. A quick way to see if someone may be brain dead is shining light into their eyes; a person who is truly brain dead does not have a pupil response. Eventually this person who is brain dead is let off of machines which keep their body alive and their body dies as well. Hopefully, if the person is able to give organ donations they do so, because they could be saving other's lives.
What is the role of the thalamus in hearing vision taste and smell?
It is the part of the brain whose function includes relaying sensation, special sense and motor signals to the cerebral cortex, along with the regulation of consciousness, sleep and alertness.
It acts as a kind of railway signal box. As information comes in through the senses, it goes directly to the thalamus and it sends the signals off to different parts of the railway yard (brain). It will send the signal to the cortex, or rational part of the brain and to the limbic or emotional brain at the same time. Although the limbic system will react to the stimulus a lightning split second quicker than the cortex, often sending people into flight or fight when it's not really appropriate in the present circumstances.
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1. Thalamus acts as a relay station for both afferent and efferent fibres of the cerebral cortex. ]
2. Along with the hypothalamus, it helps in sleep and wakefullness.
3. Along with the cerebellum & basal ganglia, it helps in maintaining body posture.
The thalamus is a by-station from the sensory organs to the cerebral cortex sensory regions. It has a somatosensory mapping of the body and has known integrative functions.
There is also a part of the brain called the hypothalamus. It is the "leader" of the endocrine system. It controls what and where the hormones do and go and when they go at a certain time
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One of the functions of the thalamus is to relay sensory information by transmitting axons to other regions of the cerebral cortex. Such as: the sense of touch is relayed to the parietal lobe, the sense the sight is relayed to the occiptal lobe, the sense of hearing is relayed to the temporal lobe, and the sense of balance is relayed to the cerebellum. The thalamus does NOT relay the sense of smell to the temporal lobes though.
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The thalamus is the gateway to the brain that is responsible or receiving almost all incoming sensory information before the information reaches the cortex. Axons from every sensory system, except for olfaction, synapse in the thalamus as a last pit stop before the information reaches the cerebral cortex.
The functions of the thalamus include relaying sensory and motor signals to and from the cerebral cortex, regulating consciousness, sleep, and alertness.
The thalamus is a by-station from the sensory organs to the cerebral cortex sensory regions. It has a somatosensory mapping of the body and has known integrative functions.
There is also a part of the brain called the hypothalamus. It is the "leader" of the endocrine system. It controls what and where the hormones do and go and when they go at a certain time http://www.answers.com/thalamus receives messages from all of the sensory receptors throughout the body and then relays the info to the proper region of the cerebrum for further processing.
A small glandular organ that is situated behind the top of the breastbone, consisting mainly of lymphatic tissue and serving as the site of T cell differentiation. The thymus increases gradually in size and activity until puberty, becoming vestigial thereafter.
It relays information from different parts of the brain.
it is part of your brain. it is the relay for sensory impulses. it shows what is pleasant and unpleasant.
The thalamus is a major relay center. All incoming sensory information except smell goes through the thalamus, before reaching the cerebral cortex. (And even smell has a pathway connecting to the thalamus.) The actual processing of the sensory information starts here, this is especially true about vision. It also participates in the regulation of sleep, arousal and wakefulness, and plays a role in motor functions as well.
Can permanent brain damage be caused from minor meth use?
No sh!t! If this is your question, it may be a sign. Stop using meth stupid.
What kind of answer is that? How ignorant that response is. Signs of brain damage by the same as someone who has experienced a stroke, slight, to severe depending on length of use, and amount used and other variables. Facial ticks, involuntary movement of the fingers, hands and feet.
What is the function of the human brain?
Your brain retains (does not control) everything about you. Your interests, personality, skills, thoughts, memories, emotions, breathing, heart beats, and just about everything your body does! The brain processes everything that you tell it, consciously or subconsciously, to process. An ultimate, unreplicable computer. Without the influences of a spirit it can do nothing at all.
What happens when one side of the brain is dead?
The brain is like software for a computer. once everything is working OK then there's no problem. The brain however, is much more sophisticated, in that different sides of the brain controls different aspects of the human body: mentally, physically and psychologically. However, if the left side of the brain is dead, it does not mean partial loss of 'functions', but total incapacity of the entire human body
