Answer:
Thousands of years back people were mostly hunters and gatherers. Thus, they used to eat raw meat and vegetable since they didn't know anything about cooking raw food in fire. After discovering about cooking raw meat and vegetables in fire is when new dishes and inventions came about.
I am a nurse by profession and the best sources are as follows:
Scribd - they provide you with detailed cases.
nurseslabs- if you want to know more about health issues and how they are being treated you can check it out here.
WebMD- is a popular site with health care professionals and with regular individuals. It is very informative.
MedicineNet, Drugs.com - if you want to learn more about your given medications.
The three types are:
1) Cardiac
2) Smooth
3) Skeletal/ Striated
A true because ekdhaksdksj flake so yeah