A&P Chapter 16

secretes acetylcholine

A cholinergic neuron

both a and c

A sudden increase in blood pressure 1. initiates a sympathetic reflex that decreases heart rate 2. initiates a local reflex that decreases heart rate 3. initiates a parasympathetic reflex that decreases heart rate 4. both a and b 5. both a and c

1,2,3,4

Given these phrases 1. neuron cell bodies in the nuclei of cranial nerves 2. neuron cell bodies in the lateral gray matter of the spinal cord (S2-S4) 3. two synapses between the cns and effector organs 4. regulates smooth muscle which of the phrases are true for the autonomic nervous system

3,2,4,1

Given these structures 1. collateral ganglion 2. sympathetic chain ganglion 3. white ramus communicans 4. splanchnic nerve list the structures in the order an action potential travels through them on the way from a spinal nerve to an effector organ

2,3,1

Given these structures 1. Gray ramus communicans 2. white ramus communicans 3. sympathetic chain ganglion list the structures in the order an action potential passes through them from a spinal nerve to an effector organ

postganglionic neurons of the parasympathetic division

Nicotinic receptors are located in 1. postganglionic neurons of the parasympathetic division 2. postganglionic neurons of the sympathetic division 3. membranes of the skeletal muscle cells 4. both a and b 5. all of the above

have preganglionic neurons that synapse in the collateral ganglion

Splanchic nerves 1. are part of the parasympathetic division 2. have preganglionic neurons that synapse in the collateral ganglion 3. exit from the cervical region 4. travel from the spinal cord to the sympathetic chain ganglion 5. all of the above

pelvic splanchic nerves

Sympathetic axons reach organs through all of the following except 1. abdominopelvic nerve plexuses 2. head and neck nerve plexuses 3. thoracic nerve plexuses 4. pelvic splenchic nerves 5. spinal nerves

can be caused by norepinephrine

The activation of alpha and beta receptors

sympathetic chain ganglion and collateral ganglion

The cell bodies of the postganglionic neurons of the sympathetic division are located in the

all of the above

The parasympathetic division 1. is also called the craniosacral division 2. has preganglionic axons in cranial nerves 3. has preganglionic axons in pelvic splanchic nerves 4. has ganglia near or in the wall of effector organs 5. all of the above

is usually under conscious control

The sympathetic division

preganglionic sympathetic fibers

The white ramus communicans contains

Na channels open

When acetylcholine binds to nicotinic and norepinephrine

somatic neurons

Which is not a part of the enteric nervous system 1. ans motor neurons 2. neurons located only in the digestive tract 3. sensory neurons 4. somatic neurons

all parasympathetic preganglionic neurons secrete acetylcholine

Which of the following statements concerning the preganglionic neurons of the ans is true 1. all parasympathetic preganglionic neurons secrete acetylcholine 2. only parasympathetic preganglionic neurons secrete acetylcholine 3. all sympathetic preganglionic neurons secrete norepinephrine 4. only sympathetic preganglionic neurons secrete norepinephrine

the sympathetic division stimulates the adrenal gland to release epinephrine

Which of the following statements regarding the adrenal gland is true 1. the parasympathetic division stimulates the adrenal gland to release acetylcholine 2. the parasympathetic division stimulates the adrenal gland to release epinephrine 3. the sympathetic division stimulates the adrenal gland to release acetylcholine 4. the sympathetic division stimulates the adrenal gland to release epinephrine

trigeminal V

Which of these cranial nerves does not contain parasympathetic fibers 1. oculomotor III 2. facial VII 3. glossopharyngeal IX 4. trigeminal V 5. vagus X

air passageways dilate

Which of these is expected if the sympathetic division is activated? 1. secretion of watery saliva 2. tear production increases 3. air passageways dilate 4. glucose release from the liver decreases 5. all of the above

urinary bladder

Which of these structures is innervated almost exclusively by the sympathetic division 1. gastrointestinal tract 2. heart 3. urinary bladder 4. reproductive tract 5. blood vessels