The herb seems to have a calming effect on the central nervous system.
The human body contains approximately 640 muscles.
- The muscles represent one of the four types of tissues (the remining include connective tissue, nerve tissue and epithelial tissue) found in the human body.
- A muscle is a group of cells that contract together as a unit in order to produce a force.
- Muscles can be divided into skeletal (voluntary) muscles, smooth (involuntary) muscles, and cardiac (involuntary) muscles.
In conclusion, the human body contains approximately 640 muscles.
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Answer:
B
Explanation:
The umbilical vein carries oxygenated, nutrient-rich blood from the placenta to the fetus, and the umbilical arteries carry deoxygenated, nutrient-depleted blood from the fetus to the placenta