Helper T cells: help the body fight infections by producing antibodies and other chemicals.
- Killer T cells: destroy cells that are infected with a virus or pathogen and tumor cells.
- Suppressor T cells: stop or "suppress" the other T cells when the battle is over
- Memory T cells: remain in the blood on alert in case the invader attacks
Answer:
The first one should be the Correct answer
The given statement is True. In Parkinson's disease, dopamine-producing neurons are deficient in the brain.
<h3>
What is parkinson's disease?</h3>
Parkinson's disease is a progressive disorder that is caused by the degeneration of nerve cells. In this disease, the substance called nigra starts degrading which controls the movement in the body.
This cell stops producing an important chemical called dopamine. Dopamine helps in coordination with nerve cells and muscle cells. Dopamine deficiency leads to:
- Rigidity
- Slowness of movement
- Impaired balance and coordination.
The main cause of Parkinson's disease is genetic factors and environmental factors. The most common medicine given is levodopa. This is the standard medicine given to the patient.
Therefore, The given statement is True. In Parkinson's disease, dopamine-producing neurons are deficient in the brain.
To learn more about parkinson's disease, refer to the link:
brainly.com/question/26431892
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