Examlex
Extinct jawless fish include the:
Inhibin
A hormone secreted by the gonads that inhibits the production of follicle-stimulating hormone (FSH) by the pituitary gland.
Progesterone
A steroid hormone released by the corpus luteum that prepares the endometrium for the potential of pregnancy after ovulation.
Signaling Molecule
A chemical that is involved in transmitting information between or within cells, often triggering physiological changes.
Erection
The physiological process by which certain tissues in the body, such as the penis or clitoris, become enlarged and firm, typically as a result of sexual arousal or stimulation.
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