Unit VI (Senses) Flashcards
this neurotransmitter enables muscle action, learning, and memory
Acetylcholine
Acetylcholine malfunctions
Alzheimer’s disease - ACh-producing neurons deteriorate
neurotransmitter that influences movement, learning, attention, and emotion
Dopamine
Dopamine malfunctions
oversupply linked to schizophrenia, undersupply linked to tremors and decreased mobility in Parkinson’s disease
this neurotransmitter affects mood, hunger, sleep, and arousal
Serotonin
Serotonin malfunctions
undersupply linked to depression, some antidepressant drugs linked raise serotonin levels
this neurotransmitter helps control alertness and arousal
Norepinephrine
Serotonin malfunctions
undersupply can depress mood
a major inhibitory neurotransmitter
GABA (gamma-aminobutyric acid)
GABA Malfunctions
undersupply linked to seizures, tremors, and insomnia
a major excitatory neurotransmitter, involved in memory
Glutamate
Glutamate Malfunctions
oversupply can overstimulate the brain, producing migraines or seizures (which is why some people avoid MSG, monosodium glutamate, in food)
these function to activate receptors on the postsynaptic membrane and enhance the effects of the action potential
Excitatory neurotransmitters
these reduce excitability.
Inhibitory neurotransmitters
___ is used to treat and enhance quality of life in individuals who suffer severe illness
Neuromodulation
The Excitatory Neurotransmitters
Glutamate
Aspartate
Nitric oxide
The Inhibitory Neurotransmitters
Glycine
GABA
Serotonin
Dopamine
Neurotransmitters that inhibit and excite
Acetylcholine
Norepinephrine
Air-filled cavities located in the bones around the nasal cavity: ethmoid, sphenoid, frontal bones, and maxillae
Lined by respiratory mucosa which is the continuous with the mucose of the nasal cavity
Drain into the nasal cavity through relatively small apertures
Drainage of the sinuses mainly depends on the movement of the cilia, which propel the mucus toward their openings in the nasal cavity
Paranasal Sinuses
___ is a hollow space behind the nose that air flows through
Nasal cavity
___ is a thin “wall” made of cartilage and bone. It divides the inside of the nose into two chambers
Septum
___ is thin tissue that lines the nose, sinuses, and throat. It warms and moistens the air you breathe in. It also makes the sticky mucus that helps clean the air of dust and other small particles.
Mucous Membrane
___are found on each side of the nose. They are curved, bony ridges lined with mucous membranes. They warm and moisten the air you breathe in.
Turbinates