Cell Journal, Spike Walker
Chilly weather could impede the immune reactions that most effectively contain viruses like the common cold.
A light micrograph of a human egg, which is surrounded by a matrix of glycoproteins, called the zona pellucida (brown rim), and a layer of follicle cells, called the corona radiata (yellow).
| November 12, 2012
Cell Journal, Spike Walker
You
November 12, 2012
Simple question: Are the small, dark-headed, long thin-tailed cells (I count three of them) in or approaching the corona spermatozoa?