Examlex
Which of the following muscles belongs to the flexors of the knee muscle group?
Spermatozoa
Male gametes or reproductive cells that carry a man's DNA to the female ovum in sexual reproduction.
Seminiferous Tubules
Coiled structures in the testes where sperm production occurs.
Islets of Langerhans
Clusters of cells in the pancreas that secrete insulin, glucagon, and somatostatin, crucial for blood sugar regulation.
G Cells
These are specialized cells in the stomach lining that secrete gastrin, a hormone that stimulates the secretion of gastric acid.
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