5 Written Questions
5 Matching Questions
- IP3, cGMP, and CO
- Action potential
- bipolar; cribriform plate; olfactory bulb; one; numerous
- General anosmia and hyposmia
- a What is the type of membrane potential change produced in olfactory sensory neurons that are stimulated by an odorant?
- b List three other second messengers (besides cAMP) that may play a role in signal transduction in the olfactory system.
- c ____ may be caused by respiratory infections (transient), head trauma, damage to the cribriform plate that heals over and severs olfactory axons, and Parkinsons.
- d Olfactory neurons are ____ nerve cells embedded in the epithelium of the nasal cavity's dorsal posterior recess. Axons travel through the ____ and into the ____. They have ____ dendrite terminating into ____ cilia at the mucous membrane surface.
- e Olfactory hallucinations of repugnant smells due to epileptic seizures.
5 Multiple Choice Questions
- What are the maximum numbers of odorants and tastants that human beings can distinguish?
- Name the two olfactory systems in animals that sense pheromones.
- Describe the hypothetical functions of the odorant binding proteins that are contained in the mucous of the olfactory mucosa.
- Describe one property of olfactory neurons that distinguishes them from other neuronal types.
- Compare the turnover of taste receptor cells and neurons.
5 True/False Questions
Influence estrus cycles, regulate the age of onset of puberty, prevent fertilized embryo implantation, and signal receptivity of females for mating. → Explain the basis for the ability of olfactory sensory neurons to detect a wide variety and large number of odorant molecules.
Action potentials → What are the kinds of membrane potential changes that are produced in taste cells of the taste buds by tastants?
Umami (monosodium glutamate) → What is a fifth possible taste quality that has been identified?
No → ____ taste occurs by the passage of H+ through amiloride-sensitive Na+ channels or blockade of K+ channels by H+.
Vision → Name another sensory modality whose receptors utilize a similar transduction mechanism to the olfactory one.