What has been the one body system that you have struggled with this term, and why? What has made it difficult?

What has been the one body system that you have struggled with this term, and why? What has made it difficult? Explain. In your chosen profession, will it be critical to understand this particular body system? Why or why not?

Module 1: blood, lymphatic system, and immunity

Module 2: cardiovascular system

Module 3: digestive system

module 4: respiratory system

module 5: urinary system

module 6: reproductive system

I will be a Rn. Thank you for your help!