Receptors and affect on body Flashcards
What receptor on heart
B1, M2
What receptor on blood vessels (organ and skin)
a1, M3 (endothelial cells)
What receptor affects eye
a1, a2, B1, B2
What receptor in GI tract
a2, B2, M3
What does a1 cause to blood vessels
vasoconstriction
What does B2 cause to blood vessels
vasodilation
What receptor on blood vessels (skeletal muscle)
B2
What receptors affect aqueous humour production and how
a - decrease
B- increase
M3- increase drainage
What receptors affect GI tract motility and how
a2 - decrease motility
B2 - derease motility
–> relax smooth muscle
M3- increase motility
–> contract smooth muscle
How does a2 receptors affect blood pressure
lower NE –> lower SNS –> lower BP
What receptor affects bronchi and how
B2 - bronchodilation (relax smooth muscle)
M3- bronchoconstriction (contract smooth muscle)
What receptor affects sweat glands and how
M3- increase secretion
What receptor lowers heart rate
M3
What receptor increases heart rate
B1
What receptor dilates pupils
a1
