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Answere the following name the major s...

Answere the following
name the major site where RBCs are formed
which part of heart is responsible fpr initating and maintaining its rhythmic activity ?

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### Step-by-Step Text Solution: **Step 1: Identify the major site of RBC formation.** - The major site where red blood cells (RBCs) are formed is the **bone marrow**. This is a spongy tissue found in the center of bones, particularly in the long bones, pelvis, and sternum. **Step 2: Determine the part of the heart responsible for rhythmic activity.** - The part of the heart responsible for initiating and maintaining its rhythmic activity is the **sinoatrial node (SA node)**. This node is located in the right atrium of the heart and acts as the natural pacemaker, generating electrical impulses that trigger heartbeats. ...
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