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- Neurons, also known as nerve cells, send and receive signals from the brain.
- A neuron has 3 parts: the dendrites, the cell body (also called the "soma"), the axon.'
- Dendrites - It takes information to the cell body.
- Cell body (soma) - the part of the cell that contains the nucleus.
- Axon - It takes information away from the cell body.
- The functional unit of the Kidney is the nephron.
- Red blood cells also called erythrocytes.
- Red blood cells help in carrying oxygen throughout the body.
- Hemoglobin is a pigment in the red blood cells which gives the cells their red color.
- White blood cells (WBCs) are also called leukocytes.
- These help in protecting the body against foreign invaders.
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