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Kim Ferguson

Physiology Week 9

QuestionAnswer
A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP? 2. Adenylyl cyclase will not be activated.
Which hormone is released by the pituitary to stimulate the thyroid gland? thyrotropin
Which hormone produced by the adrenal glands is responsible for mobilization of energy stores? Cortisol
What should you avoid doing in the middle of your sleep cycle that would lower melatonin? turning on the lights
What goes wrong in the function of insulin in type 2 diabetes? the cells don't respond to insulin like they should
Which ear structures are responsible for the amplification and transfer of sound from the external ear to the inner ear? The ossicles
Based on the animation, where do frequencies—from high to low pitches—cause activity in the hair cells within the cochlear duct? the apex of the cochlea between the base and the apex of the cochlea
Specialized cells in the retina called ganglion cells convert the light rays into ________________. electrical signals
Which eye is visualizing leftward stimulus? right eye
When the right cornea senses a tactile stimulus, what happens to the left eye? blinks
Visceroceptors are located in which of the following? Internal organs
The receptors responsible for sensing crude and persistent touch are the: Ruffini corpuscles.
The sequence of auditory ossicles in the middle ear starting at the tympanic membrane and ending at the oval window is: malleus, incus, and stapes.
The immediate effect of a steroid hormone on a cell is the: transcription of RNA.
Which of the following is true about pain receptors? Alpha fibers are associated with sharp, localized pain.
Accommodation for near vision necessitates an increase in the curvature of the lens. constriction of the pupils. convergence of the two eyes. all of the above.
Which of the following statements is not true of the pineal gland? Melatonin is stimulated by the presence of sunlight.
The somatic senses enable us to detect sensations, including: touch. temperature. pain. all of the above.
The clear and potassium-rich fluid that fills the labyrinth is endolymph.
Which of the following is not a characteristic of the endocrine system? Chemical messenger travels a short distance.
If you slammed your finger in a car door, it would stimulate _____ pain fibers. acute
The type of cells that secrete ACTH are: corticotrophs.
Dynamic equilibrium depends on the functioning of the crista ampullaris.
All of the following are true statements except: aspirin produces some of its effects by increasing PGE synthesis.
The olfactory tract carries impulses associated with: smell.
Which of the following is not true of a receptor potential? It follows the all-or-none law.
Movement of hair cells in the organ of Corti against the _____ membrane can stimulate nerve impulse condition. tectorial
When you are looking at a large green field, which cones would be sending the green wavelength to the brain? M
The two-point discrimination test can be used to measure: the sensitivity of the skin in various parts of the body.
The last step in the nonsteroid hormone mechanism of action is: protein kinases activate other enzymes.
The production of thyroid hormone is stimulated by another hormone from the: anterior pituitary.
When a small amount of one hormone allows a second hormone to have its full effect, the phenomenon is called: permissiveness.
Which is not true of the hormone somatostatin? It stimulates the secretion of insulin.
The major hormone produced by the corpus luteum is: progesterone.
Sensory impulses ending in what part of the CNS trigger imprecise or “crude” sensation awareness? Thalamus
All of the following are nonsteroid hormones except: cortisol.
In comparison with the nervous system, the regulatory effects of the endocrine system are: slow to appear but long-lasting.
Clearness or sharpness of visual perception is known as: visual acuity
One of the few hormones that functions on a positive-feedback loop is: oxytocin.
Which of the following is a function of glucagon? Tends to increase blood glucose concentrations
Created by: Kferguson76
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