When cancer cells enter the lymph or blood system, they can form secondary tumours elsewhere.
<span>Secondary tumours are actually metastasis, cancer that spreads to a different part of the body from where it started. This happens when cancer cells break away from the main tumour and travel via blood or lymphatic system to other certain parts of the body. It is more difficult to treat metastasis because it is not always the same type of an original tumour.</span>
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-The cerebral cortex, also known as the cerebrum, is the largest portion of the brain, located right under the forehead and it is divided into two parts, a right and a left hemisphere. They in turn have a total of four lobes – the frontal, parietal, temporal and occipital lobes. The cerebral cortex controls movement, speech, memory and intelligence.
-The amygdala is an almond-shaped mass of nuclei (mass of cells) located deep within the temporal lobes of the brain. There are two amygdalae, one situated in each brain hemisphere. The amygdala is a limbic system structure that is involved in many of our emotions and motivations, particularly those that are related to survival. It is involved in the processing of emotions such as fear, anger, and pleasure. The amygdala is also responsible for determining what memories are stored and where the memories are stored in the brain. It is thought that this determination is based on how huge an emotional response an event evokes.
-Hippocampus, region of the brain that is associated primarily with memory.
-The hypothalamus is a small region of the brain. It’s located at the base of the brain, near the pituitary gland.
Answer is D. the brain and critical structures.
Electrical stimulation of the brain (ESB) is process which is used in neurosurgical operations and experimental research. During neurosurgery of human brain, electrical stimulation process is used by physicians in mapping out brain and its critical structures because patient has to be awake during the process. Electrical brain stimulation also helps in mapping connections between different regions of the brain in animals.
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well you didnt give me a link to the story or text so i dont have any info to answer sry ;(
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