glands secrete chemical messengers called leucocytes?
Hormone.
Hormones
Histamine
Hormones are chemical messengers that travel throughout the body and control the functions of the body. Small amounts of hormones can trigger large responses in the body.
glands secrete chemical messengers called leucocytes?
"hormones"
Neurotransmitter.
Hormones
Paracrines
Lund
Cyclic AMP and calcium may be second messengers
chemical messengers
They act as an active "bridge".
Hormone.
Hormones. Fool.
synaptic gap