Name the causative organism of lock jaw. Write its two symptioms.

Explanation

### Step-by-Step Solution:

1. **Identify the Disease**: The question asks for the causative organism of "lockjaw." Lockjaw is commonly known as tetanus.

2. **Determine the Causative Organism**: The causative organism of tetanus (lockjaw) is a bacterium. Specifically, it is caused by the bacterium **Clostridium tetani**.

3. **List the Symptoms**: The question also requires two symptoms associated with lockjaw (tetanus).
- The first symptom is **painful muscle spasms**. This refers to involuntary contractions of muscles that can be quite painful.
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