(NEW) Chapter 15 – Flashcards

Which of the following comparisons of the autonomic nervous system (ANS) and the somatic nervous system (SNS) is not true? a) the SNS carries information from the special senses b) the ANS has sensory receptors called interoceptors c) tissues of the ANS can function even if their nerve supply is damaged d) the SNS contains motor neurons which are only excitatory e) angina pectoris is an example of input from the ANS

Which of the following does not describe the autonomic nervous system? a) the effectors are primarily skeletal muscles b) the sympathetic division generally stimulates an organ c) preganglionic axons release acetylcholine d) it is under involuntary control e) the parasympathetic division decreases heart rate

The sympathetic division of the ANS is called the thoracolumbar division because: a) the axons of the preganglionic neurons control thoracolumbar inflow b) sensory stimulation is received via all thoracic and lumber nerve roots c) it controls only organs and muscles in the thoracic and lumbar areas of the body d) its preganglionic neurons' cell bodies are located in the gray matter of the thoracic and lumbar segments of the spinal cord

Which organ is matched incorrectly with either its sympathetic or parasympathetic ganglion? a) eye - ciliary ganglion b) urinary bladder - superior mesenteric ganglion c) ear - otic ganglion d) stomach - celiac ganglion e) heart - inferior cervical ganglion

Which statement is false in reference to the autonomic ganglia? a) the prevertebral ganglia lie close to the abdominal arteries b) the terminal ganglia lie near the bellies of skeletal muscles c) the sympathetic chain ganglia lie close to the vertebrae on each side d) the sympathetic preganglionic fibers of the sympathetic chain are very short e) the terminal ganglia are parasympathetic ganglia

The primary reason that the sympathetic division of the ANS produces immediate responses within the body is based on the concept of divergence. a) True b) False

Cholinergic neurons are named after the neurotransmitters that they release, the catecholamines. a) True b) False

Which of the following neurotransmitters does not bind to adrenergic receptors? a) noradrenaline b) acetylcholine c) epinephrine d) norepinephrine e) adrenaline

An agonist is: a) a substance that binds with a neurotransmitter to enhance its effects b) a substance that blocks a hormone from applying its effect c) a substance that activates a receptor producing the same effect as a neurotransmitter d) a substance that prevents a receptor from receiving a hormone

The definition of autonomic tone is: a) the communication between the autonomic nervous system and the somatic nervous system b) the balance between sympathetic and parasympathetic activity c) the constant slight contraction seen in skeletal muscles d) the canceling out effect of adrenergic and cholinergic responses to a stimulus

The Sympathetic division is associated with excitement or embarrassment. a) True b) False

Which of the following effects does not occur during the fight-or-flight response? a) the pupils constrict b) the airways increase in diameter c) blood vessels to skeletal muscles dilate d) heart rate speeds up e) blood pressure increases

During periods of rest and recovery, the sympathetic activity to glands and smooth muscles predominates over parasympathetic activity. a) True b) False

Which of the following sympathetic responses is mismatched with its body part? a) iris of eye - dilation of pupil b) liver - increased glycogen synthesis c) stomach - decreased motility d) hair follicles - contraction of arrector pili muscles e) adipose tissue - increased lipolysis

Which would be an example of a condition in the body not controlled by autonomic reflexes? a) breathing rate and depth b) rate of urine formation c) tracking a bird flying by d) digestion of your evening meal e) blood pressure change during exercise

The primary difference between an autonomic reflex arc and a somatic reflex arc is that the former has two motor neurons connecting the CNS to an effector. a) True b) False