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Chapter 14
The Autonomic Nervous System
| Question | Answer |
|---|---|
| the ANS regulates: | functions of internal organs |
| the system that innervate smooth and cardiac muscles & glands | ANS |
| the ANS operates is known as the ___ system | involuntary |
| this system makes adjustments to ensure support for body activities | ANS |
| the ANS is also called the _____ | general visceral motor system |
| the somatic & autonomic nervous system differs in: | their effectors, efferent pathways & ganglia, & target organ response to neurontransmitters |
| somatic nervous system stimulates: | skeletal muscle |
| the somatic system is a ___ motor neuron chain that forms pathways from CNS to its effector | single |
| the peripheal is broken up into 2 divisions. what are they? | sensory & motor |
| what are the 2 motor divisions? | somatic & autonomic |
| what are the 2 divisions of the autonomic system? | sympathetic & parasympathetic |
| ANS has dual innervation, which means: | |
| is somatic voluntary or involuntary? | voluntary |
| somatic system neurotransmitter | ACh |
| somatic only has a ___ effect | stimulatory |
| the autonomic system can have an __ or __ effect | stimulatory or inhibitory |
| what is the autonomic system neurotransmitter? | ACh or norepinephrine |
| the type of effect depends on the: | neurotransmitter |
| sympathetic system is known as the: | fight or flight system |
| all preganglionic fibers release: | ACh |
| how many neuron chains does the autonomic system have? | 2 |
| this autonomic system mobilizes body during activity | sympathetic |
| exercise, excitement, emergency or embarrassment are apart of which system? | sympathetic |
| ___ and ___ stimulates the somatic nervous system | norepinephrine & epinephrine |
| which system has short preganglionic and long postganglionic fibers? | sympathetic |
| in the sympathetic system, the heart rate and blood pressure___, | raises |
| deep breathing, dry mouth, cold sweaty skin & dilated pupils are from the: | sympathetic system |
| this is known as the "rest & digest" system. | parasympathetic |
| parasympathetic ganglia is found near: | effector organs |
| parasympathetic is not in: | blood vessels |
| this system slows heart rate down, increases stomach & consists of constructed pupils. | parasympathetic |
| craniosacral nerves is numbered __ which is nerves: | S2-S4 : 3,7, 9. 10 |
| when axons branch, they are called: | collateral |
| the parasympathetic system has short __ and long ___ | postganglionic - preganglionic |
| thoracolumbar are numbered: | T1 - L2 |
| 4 cranial nerves involved in parasympathetic system | oculomotor(III), facial(VII), glossopharygneal(IX) & vagus(X) |
| the dorsal root ganglion cell body contains: | cell bodies of afferent neurons |
| autonomic root ganglion contains: | cell bodies of efferent neurons |
| the 2 type of ACh receptors are: | nicotinic & muscarinic |
| nicotinic is found in __ muscles | skeletal |
| muscarinic is found in __ muscles | cardiac |
| nicotinic is ___ | |
| muscarinic is | |
| with nicotinic , blood pressure ___ | rises |
| the parasympathetic & sympathetic system differs in: | sites of origin & length of fibers |
| parasympathetic originates in the __ and ___, making it ___ | brain & spinal cord - craniosacral |
| sympathetic originates in the ___ and ___ region, making it ___ | thoracic & lumbar - thoracolumbnar |
| neurotransmitters are what: | neurons use to communicate with its effector organs |
| receptors receive: | neurotransmitters |
| fibers are: | axons that release neurotransmitters |
| what is a synapse? | a space btw 2 nerves |
| preganglionic | before the ganglion |
| postganglionic | after ganglionic |
| preganglionic fibers release: | ACh |
| postganglionic fibers release: | NE |
| the reflexes for urination, ejaculation and discharge of feces are found here. | spinal cord |
| hypothalamus | overall integration of ANS - the "boss" |
| what is cortical control? | |
| what exerts the most influence on the ANS? | brain stem |
| the brain stem regulates: | pupil size, airflow, blood pressure and heart |
Created by:
Mariahj25
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