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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
What is the path of blood from the left ventricle to the brain?
Blood vessels that supply the brain are the two carotid arteries and the two vertebral arteries.
- From the left ventricle, blood flows into the aorta and the common carotid arteries supply the frontal portion of the brain through the inner carotid arteries, which lead to blood vessels such as the three pairs of cerebral arteries (anterior, middle, posterior).
- From the left ventricle, blood flows from the arch of the aorta into the paired subclavian arteries, and then to the vertebral arteries, which supply the rear and lower parts of the brain through the basilar artery (which ends at the posterior cerebral arteries).
* Within the brain, cross-connections between these arteries (called the Circle of Willis) provide some redundancy should any of the arteries become severed or blocked.
What part of the brain includes the thalamus hypothalamus and epithalamus?
The diencephalon consists of thalamus, hypothalamus, and epithalamus.
How long does syphilis take to affect the brain?
The tertiary syphilis affects the nervous system. It takes almost ten to fifteen years to develop the third stage of the disease. With advent of modern chemotherapy the disease is rare now a days. Patient gets some or other antibiotic for unrelated conditions and the disease is cured probably.
Which part of the brain does nutrition effect?
Nutrition affects all parts of the body including the main organs. It affects the brain, the heart, and the vascular system.
The mass of an adult human brain is approximately 1300 to 1400 grams (2.87 to 3.1 pounds).
A newborn human brain is about 350 to 400 grams (0.77 to 0.88 pounds).
The average Male's brain weighs 1360 grams (3 pounds)
The average Female's brain weighs 1250 grams (2.8 pounds)
The brain weights of some well known people:
The brain of Albert Einstein weighed 1230 grams (2.71 pounds)
The brain of the German mathematician Carl Friedrich Gauss weighed 1492 grams (3.29 pounds)
The brain of the leading poet of Russian Revolution Vladimir Vladimirovich Mayakovsky weighed 1700 grams (3.75 pounds)
Do boogers come from your brain?
No actually they are made from mucus and dust that is gathered in your nose by your nose hairs.
Are men right or left brained?
Yes, in a manner of speaking. The brain is divided into two hemispheres, right and left. People tend to have a dominant hemisphere which is what also drives their being right or left handed. People who have a dominant right hand (e.g., it is the one they write with and eat with), have a dominant left hemisphere of their brain and vice versa, those who write with their left hands are said to have a dominant right hemisphere of the brain. So, sometimes those with dominant right hands are called "left-brained" people.
It is because the right side of the brain controls muscles on the left side of the body and the left side of the brain controls muscles on the right side of the body.
Certain traits and abilities are also associated with the different brain hemispheres, for example:
The right hemisphere is associated with:
- Spatial abilities
- Face recognition
- Visual imagery
- Music
The left Hemisphere is associated with:
- Language
- Math
- Logic
My nephew, who is left-handed, likes the pun: "Only left handed people are in their right minds."
For more interesting information about the hemispheres of the brain and some experiments you can do to learn more about them, see the related link below.
Having high blood pressure can greatly increase the possibility of suffering from a stroke or heart attack. An increase of white matter on an MRI scan may help measure both risks. Ischemic changes in white matter, relative to chronic periventricular, are commonly found by examining MRI scans. Ischemic change in white matter can be attributed to diabetes, a high content of fat in the blood and high blood pressure, which all can be attributed to raising the risk of having a stroke.
If a person is brain dead and the heart rate is low will they live?
Yes, he can be revived with CPR, intubation, IV ,emergency drugs like epinephrine and atropine and dopamine to increase heart rate and perfusion.
How do you know if you have the symptom of stomach bleeding?
According to wedmd.com, bloody, black or tarry stool or bloody vomit. Stool may look like coffee grounds. Also, fatigue, weakness, shortness of breath, abdominal pain, paleness. For more information, visit: http://www.webmd.com/digestive-disorders/gastrointestinal-bleeding
Is the brain made of cholesterol?
Yes, because they consist of many membranes which are rich in cholesterol.
The brain consists of gray matter (40%) and white matter (60%) contained within the skull. Brain cells include neurons and glial cells.
The brain has three main parts: the cerebrum, the cerebellum, and the brain stem (medulla).
What does the fornix function as in the brain?
the fornix connects the mamillary body to the hippocampus.
reticular formation
What happens if the motor cortex is damaged?
The forebrain is the CEO of the person and helps them make wise decisions and not reckless ones. Damage to this area would remove the CEO and allow the person to make harmful decisions.
How much time it takes to completely recover from benign brain tumor?
This would depend on the location and size of the tumor. For information on the most important things to look for in Brain Injury rehabilitation hospitals or for other brain injury related questions see
http://www.brainandspinalcord.org/brain-injury-treatment-centers/index.html
What do you call the furrows of the brain?
The "furrows" are called sulci
sulcus-(singular) /sul·cus/ (sul´kus) pl. sul´ci[L.] a groove, trench, or furrow; in anatomy, a general term for such a depression, especially one on the brain surface, separating the gyri.
Functions of cerebellum in nervous system?
The most important function of the cerebellum (if your a student the most you will probably be tested on in a gen bio class) is the control of balance and fine motor function, like walking.
Glomerulus is capillary tuft inside the bowman's capsule (cup-like structure of nephron).
The blood pressure of glomerulus forces the minerals and water to be filtered out of the blood into the spaces made by bowman's capsule.
