From here, infections can spread via the nasopharynx to the middle ear or bronchi. Note locations of laryngitis, pharyngitis, sinusitis, and tonsillitis.

The pink dots at the end of each DNA strand in these duplicated chromosomes are telomere sequences.

Number of neurons and non-neuronal cells in the whole human brain and by brain area B billion non-neur non-neuronal cells or glia Whole brain Waml cnmx B B cells E ...

The several types of epithelial tissue are distinguished by their appearance Epithelial tissue is used to construct body coverings and the protective sheets that line and cover hollow tubes and ...