Vocabulary Quiz 9 Flashcards
A neurotransmitter liberated by many peripheral nervous system neurons and some central nervous system neurons. It is excitatory at neuromuscular junctions but inhibitory at some other synapses
Acetylcholine
A nerve fiber of the autonomic nervous system that releases the neurotransmitter norepinephrine and, in some areas, dopamine. Most postganglionicsympathetic nerve fibers are of this type
Adrenergic Fibers
A type of receptor for norepinephrine and prinephrine; present on visceral effectors innervated by sympathetic postganglionic neurons
Alpha Receptors
Visceral sensory and visceral motor neurons. Autonomic motor neurons, both sympathetic and parasympathetic, conduct nerve impulses from the central nervous system to smooth muscle, cardiac muscle, and glands. So named because this part of the nervous system was thought to be selfgoverning or spontaneous
Autonomic Nervous System
A type of adrenergic receptor for epinephrine and norepinephrine; found on visceral effectors innervated by sympathetic postganglionic neurons
Beta Receptors
A nerve fiber of the autonomic nervous system that releases the neurotransmitter acetylcholine. Includes all preganglionic fibers, allpostganglionic sympathetic fibers to sweat glands, and efferent fibers innervating skeletal muscle.
Cholinergic Fibers
The effects produced upon stimulation of the sympathetic division of the autonomic nervous system. First of three stages of the stress response
Fight or Flight Response
A metabolic pathway that results in the generation of glucose from non-carbohydrate carbon substrates such as pyruvate, lactate, glycerol, and glucogenic amino acids.
Gluconeogenesis
The formation of glycogen from sugar
Glycogenesis
The process by which the glycogen present in the liver is transformed into glucose, to be released into the blood
Glycogenolysis
The metabolic formation of fat
Lipogenesis
The breakdown of fats and other lipids by hydrolysis to release fatty acids
Lipolysis
Receptor for the neurotransmitter acetylcholine found on all effectors innervated by parasympathetic postganglionic axonsand on sweat glands innervated by cholinergic sympathetic postganglionic axons; so named because muscarine activates these receptors but does not activate nicotinic receptors for acetylcholine
Muscarinic Receptors
Receptor for the neurotransmitter acetylcholine found on both sympathetic and parasympathetic postganglionic neurons and on skeletal muscle in the motor end plare; so named because nicotine activates these receptors but does not activate muscarinic receptors for acetylcholine
Nicotinic Receptors
A hormone secreted by the adrenal medulla that produces actions similar to those that result from sympathetic stimulation. Also called noradrenaline
Norepinephrine