The weakest current strength that can excite a tissue is called

Options

A. Chronaxia
B. Rheobase
C. Saltatory
D. Reflex arch

Explanation

To answer the question "The weakest current strength that can excite a tissue is called," we will go through the following steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question is asking for a specific term that refers to the weakest current strength capable of exciting a tissue. This is a concept in neurophysiology related to the stimulation of muscles or neurons.

2. **Identifying Key Terms**: The options provided are:
- Chronexia
- ReoBase
- Sultry
- Reflex
- Agh

3. **Defining the Options**:
- **Chronexia**: This term refers to the minimum time required for a current of a specific strength to excite a tissue.
- **ReoBase**: This term refers to the lowest intensity of current that can stimulate a tissue.
- **Sultry**: This is not a relevant term in this context.
- **Reflex**: This refers to an automatic response to a stimulus, not a measure of current strength.
- **Agh**: This does not correspond to any known term in this context.

4. **Analyzing ReoBase**: The term "ReoBase" is specifically defined as the weakest current strength that can excite a tissue. It is the minimum current necessary to cause a response in muscle or nerve tissue.

5. **Conclusion**: Based on the definitions and analysis, the correct answer to the question is **ReoBase**.

### Final Answer:
The weakest current strength that can excite a tissue is called **ReoBase**.

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