Question

1: What type of receptor is on the sympathetic postganglionic neuron?

a) alpha/beta receptors

b) nicotinic receptors

c) muscarinic receptors

2: Match the receptor with the mechanism it uses to effect the body

nicotinic receptor

      [ Choose ]            activates G proteins            deactivates adenylate cyclase            opens ligand-gated sodium channel            activates adenyate cyclase            activates 2nd messengers to cause calcium release            increases levels of cAMP in the blood            reduces levels of cAMP in the blood      

alpha 1 receptor

      [ Choose ]            activates G proteins            deactivates adenylate cyclase            opens ligand-gated sodium channel            activates adenyate cyclase            activates 2nd messengers to cause calcium release            increases levels of cAMP in the blood            reduces levels of cAMP in the blood      

alpha 2 receptors

      [ Choose ]            activates G proteins            deactivates adenylate cyclase            opens ligand-gated sodium channel            activates adenyate cyclase            activates 2nd messengers to cause calcium release            increases levels of cAMP in the blood            reduces levels of cAMP in the blood      

beta 1 receptors

      [ Choose ]            activates G proteins            deactivates adenylate cyclase            opens ligand-gated sodium channel            activates adenyate cyclase            activates 2nd messengers to cause calcium release            increases levels of cAMP in the blood            reduces levels of cAMP in the blood      

muscarinic receptors

Choose ]            activates G proteins            deactivates adenylate cyclase            opens ligand-gated sodium channel            activates adenyate cyclase            activates 2nd messengers to cause calcium release            increases levels of cAMP in the blood            reduces levels of cAMP in the blood      

Answer 1

1. (C) Muscarinic receptors The postganglionic neurons of the sweat glands release acetylcholine for muscarinic receptor activation in the sympathetic nervous system.

2. Receptors with the mechanism it uses to affect the body:

Nicotinic Receptor: opens ligand-gated sodium channel, activate adenylate cyclase.

Alpha 1 receptor: activate G proteins

Alpha 2 receptor: Reduce levels of cAMP in the blood

Beta 1 receptors: Increases levels of cAMP in the blood.        

Muscarinic receptors: activates G proteins.