Answer:
Antipsychotic drugs have been developed to target both the positive symptoms AND the negative symptoms of schizophrenia by targeting both dopamine and serotonin receptors in the brain.
Explanation:
Schizophrenia is a disorder that affects the ability of a person to feel things, think and behave accordingly. There are several symptoms of schizophrenia like hallucinations, social isolation, responding inappropriately to surroundings and stimulus, being emotionally vulnerable, in severe cases an individual may try to harm themselves and become extremely aggressive. Dopamine and serotonin both play vital roles in schizophrenia. It was detected that dopamine levels were low in patients suffering from schizophrenia. Thus, antipsychotic drugs were developed which affected the receptors of dopamine and serotonin, sequentially reducing symptoms and effects of schizophrenia.
Learn more about Schizophrenia here:
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True
Hormones released by the endocrine system travel in the blood until they find their specific target cell it is true.
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Answer:
a. substantia nigra
b. substantia nigra (it is repeated)
Explanation:
Parkinson's disease is a neurodegenerative disease that is caused by the death of neurons that release the neurotransmitter dopamine in the <u>substantia nigra</u>, or locus niger, -a region of the brain that regulates brain circuits that give the 'orders' to initiate voluntary movements- .
The lack of this neurotransmitter leads to the occurrence of the main symptoms suffered by patients: decreased movements, muscle stiffness, postural instability and tremor. These failures are generated by the abnormal way in which neurons work in the absence of dopamine through a mechanism that is not known in depth.
It is the second most frequent neurodegenerative disease, after Alzheimer's disease, with a prevalence of 2% in people over 65 years. The characteristic symptoms of stiffness, bradykinesia and tremor are associated with losses of neurons in the substantia nigra and dopamine depletion in the striatum. There are large cytoplasmic inclusions, called Lewy bodies, which are the pathological mark of the disease and appear predominantly in neurons that contain melanin of the nigra substance. Genetic studies in a subgroup of families with Parkinson's disease with autosomal dominant inheritance found a locus on chromosome 4q-21 23 and a mutation in the gene that encodes a synaptic protein, α-synuclein.
Because the oxygen produced in photosynthesis is used in respiration, and the carbon dioxide produced in respiration is used in photosynthesis.
