BIO 264 10.2

Question 19 (1 point) Question 19 Unsaved (10_02) The sympathetic nervous system stimulates the lungs through the actions of the: Question 19 options: 1) Beta 2 receptor 2) Alpha 2 receptor 3) Muscarinic 1 receptor 4) Muscarinic 2 receptor

1) Beta 2 receptor

Question 10 (1 point) Question 10 Unsaved (10_02) Name the two main subtypes of adrenergic receptors. Question 10 options: 1) alpha and beta. 2) collateral and terminal. 3) muscarinic and nicotinic. 4) nicotinic and cholinergic. 5) muscarinic and cholinergic.

1) alpha and beta.

Question 17 (1 point) Question 17 Unsaved (10_02_02) Postganglionic neurons of the parasympathetic division are __________ and secrete the neurotransmitter ______________. Question 17 options: 1) cholinergic;acetylcholine 2) cholinergic;norepinephrine 3) nicotinic;acetylcholine 4) nicotinic;norepinephrine Question

1) cholinergic;acetylcholine

Question 3 (1 point) Question 3 Unsaved (10_02_01) Which of the following substances is a catecholamine? Question 3 options: 1) norepinephrine 2) acetylcholine 3) nitric oxide 4) All of the choices are correct.

1) norepinephrine

Question 7 (1 point) Question 7 Unsaved (10_02) A _____________ neuron synapses in the adrenal medulla and releases _____________ as a neurotransmitter. Question 7 options: 1) preganglionic; acetylcholine 2) postganglionic; norepinephrine 3) preganglionic; norepinephrine 4) postganglionic; acetylcholine 5) somatic; norepinephrine

1) preganglionic; acetylcholine

Question 2 (1 point) Question 2 Unsaved (10_02_01) ____________ postganglionic neurons release acetylcholine as a neurotransmitter. Question 2 options: 1) Sympathetic 2) Parasympathetic 3) Somatic 4) Sensory

2) Parasympathetic

Question 9 (1 point) Question 9 Unsaved (10_02_02) What type of response occurs when acetylcholine binds with a nicotinic receptor? Question 9 options: 1) an inhibitory response 2) an excitatory response 3) either an excitatory or inhibitory response 4) both an excitatory and inhibitory response 5) neither an excitatory nor inhibitory response

2) an excitatory response

Question 14 (1 point) Question 14 Unsaved (10_02_02) Nicotinic receptors are located Question 14 options: 1) at every possible site where acetylcholine is released 2) at the membranes of skeletal muscles 3) at all the parasympathetic effector organs 4) at only the pre-ganglionic synapse site of the sympathetic division, but not the parasympathetic division

2) at the membranes of skeletal muscles

Question 13 (1 point) Question 13 Unsaved (10_02) What is unique about sympathetic innervation to the adrenal gland? Question 13 options: 1) the innervation releases a hormone at the pre-ganglionic synapse instead of a neurotransmitter 2) it only consists of pre-ganglionic neurons 3) it synapses right on the surface of the adrenal gland 4) none of the above. There is nothing unique about sympathetic innervation to the adrenal gland

2) it only consists of pre-ganglionic neurons

Question 18 (1 point) Question 18 Unsaved (10_02) Autonomic preganglionic fibers are _____________ and release _____________. Question 18 options: 1) myelinated; norepinephrine 2) myelinated; acetylcholine 3) myelinated; acetylcholine and norepinephrine 4) unmyelinated; acetylcholine 5) unmyelinated; norepinephrine

2) myelinated; acetylcholine

Question 5 (1 point) Question 5 Unsaved (10_02_02) A cell containing only 1 adrenergic receptors is MOST sensitive to _________. Question 5 options: 1) acetylcholine 2) norepinephrine 3) dopamine 4) muscarine 5) nicotine.

2) norepinephrine

Question 8 (1 point) Question 8 Unsaved (10_02) When the postganglionic cells of the adrenal medulla are stimulated, they release _____________. Question 8 options: 1) acetylcholine and epinephrine. 2) norepinephrine and acetylcholine. 3) epinephrine and norepinephrine. 4) cortisol. 5) aldosterone.

3) epinephrine and norepinephrine.

Question 1 (1 point) Question 1 Unsaved (10_02_01) A majority of postganglionic sympathetic neurons release _____________ as a neurotransmitter. Question 1 options: 1) acetylcholine 2) epinephrine 3) norepinephrine 4) dopamine

3) norepinephrine

Question 15 (1 point) Question 15 Unsaved (10_02_02) How do nicotinic receptors compare to muscarinic receptors? Question 15 options: 1) Nicotinic and muscarinic receptors are always excitatory. 2) Nicotinic and muscarinic receptors are always inhibitory. 3) Nicotinic and muscarinic receptors can be both excitatory and inhibitory. 4) Nicotinic receptors are always excitatory and muscarinic receptors can be excitatory and inhibitory. 5) Nicotinic receptors can be excitatory or inhibitory and muscarinic receptors are always excitatory. 6) Nicotinic receptors are always inhibitory and muscarinic receptors can be excitatory and inhibitory. 7) Nicotinic receptors can be excitatory or inhibitory and muscarinic receptors are always inhibitory.

4) Nicotinic receptors are always excitatory and muscarinic receptors can be excitatory and inhibitory.

Question 12 (1 point) Question 12 Unsaved (10_02_02) The preganglionic neurons of the parasympathetic division secrete the neurotransmitter, ________________, and the postganglionic neurons of the parasympathetic division secrete the neurotransmitter, _________________. Question 12 options: 1) epinephrine, epinephrine 2) epinephrine, acetylcholine 3) acetylcholine, epinephrine 4) acetylcholine, acetylcholine

4) acetylcholine, acetylcholine

Question 11 (1 point) Question 11 Unsaved (10_02) Where would you expect to find nicotinic receptors? Question 11 options: 1) postganglionic neurons of the parasympathetic division 2) postganglionic neurons of the sympathetic division 3) adrenal medulla 4) all the above 5) a and b

4) all the above

Question 20 (1 point) Question 20 Unsaved (10_02) The celiac, superior mesenteric, and inferior mesenteric ganglia are ganglia that are part of the sympathetic division and located close to effector organs. What is another name for these ganglia? Question 20 options: 1) chain ganglia 2) dorsal ganglia 3) somatic motor ganglia 4) terminal ganglia 5) collateral ganglia

5) collateral ganglia

Question 4 (1 point) Question 4 Unsaved (10_02_01) The adrenal medulla secretes 80% _____________ and 20% _____________. Question 4 options: 1) norepinephrine; dopamine 2) dopamine; epinephrine 3) epinephrine; acetylcholine 4) acetylcholine; norepinephrine 5) epinephrine; norepinephrine 6) acetylcholine; dopamine

5) epinephrine; norepinephrine

Question 16 (1 point) Question 16 Unsaved (10_02_01) It is said that the sympathetic nervous system (SNS) is dominant in "fight or flight" while the parasympathetic nervous system (PNS) is dominant in "rest and digest". What is also TRUE? Question 16 options: 1) SNS activation only causes smooth muscle contraction while PNS activation only causes smooth muscle relaxation 2) SNS activation causes skeletal muscle contraction while PNS activation causes smooth muscle contraction 3) SNS activation will release norepinephrine onto muscarinic receptors 4) a and b are true 5) All of the above are true 6) None of the above are true

6) None of the above are true

Question 6 (1 point) Question 6 Unsaved (10_02_02) _____________ binds to muscarinic receptors. Question 6 options: 1) Epinephrine 2) Muscarine 3) Norepinephrine 4) Acetylcholinesterase 5) Acetylcholine 6) b and e 7) b and d

6) b and e