It bends or refracts light rays entering the eyes. C. It is the site of attachment for the extraocular muscles. D. It helps to maintain the shape of the eye. Answer Key: B Question 2 of 20 1.0 Points The border between the transparent edge of the cornea and the white of the fibrous sclera is the: A. pupil. B. anterior chamber.
"Amblyopia, ordinarily regarded as languid eye, is the eye condition noted by decreased vision not correctable by glasses or contact lenses and is not because of any eye sickness. The mind, for some reason, does not completely recognize the pictures seen by the amblyopic eye. This very nearly always affects stand out eye however may show with
If no molecules in a body could escape, would the body have any odor? • No, it is the minute molecules in the air that we detect in our nasal cavity and if there were no molecules given off then there would be no way to smell them. 8. Which of the following
They do not reside on any database. They are pieces of anecdotal evidence brought in by other nurses in the clinic. Appropriateness of Sources of Evidence AAP/AAFP, 2004 This article is appropriate because it directly addresses the issue of watchful waiting versus prescription of antibiotics for children with uncomplicated acute otitis media. Block, 1997 This article is not appropriate. It does not address watchful waiting as an alternative to antibiotics.
* Satellite oligodendrocytes are functionally distinct from most oligodendrocytes. They are not attached to neurons and, therefore, do not serve an insulating role. They remain apposed to neurons and regulate the extracellular
Lab Report Two Part One: Patient A is suffering from Clostridium botulinum because it prevents neurotransmitter release at the neuromuscular junction and causes flaccid paralysis. This is caused by no ACh in the cleft and no action potential in the muscle. There is no contraction of the muscles. Patient B is suffering from poison from the black widow. Calcium channels in the presynaptic terminal are opened so there will be ACh in the cleft, but it causes local paralysis so there will be no action potential in the muscles.
___ cells of the retina are inhibited by glutamate in the dark, but excited in the light when glutamate secretion stops. (a) Ganglion; (b) Rod; (c) Bipolar; (d) Amacrine; (e) Cone 13. In the ___, there are no rod cells, but small closely spaced cone cells with “private lines” to the brain. (a) fovea centralis; (b) optic disc; (c) ora serrata; (d) ciliary body; (e) fundus 14. As you focus on a nearby object while it moves closer to your face, all of the following processes occur except: (a) the pupil constricts; (b) the medial rectus muscles contract; (c) the lenses become thicker; (d) the ciliary muscle relaxes; (e) the eye shifts from the scotopic to photopic mode.
Explain why olfaction and gustastion are considered “chemical” special senses (think of how these two senses work). Explain the importance of hair cells with the sense of hearing and equilibrium. Lastly, compare and contrast rod and cone cells' location, function, and overall amount. Both olfaction
Correct The structure of the brain that regulates the endocrine system is the: Your Answer: Hypothalamus. 4. Correct Functions of the cerebellum include all of the following except: Your Answer: Initiating movement. 5. Correct Which of the following cranial nerves is not associated with the eyes?
| What are the three principles of operant conditioning and explain them? Shaping- An operant conditioning procedure in which reinforcers guide behavior toward closer and closer approximations of the desired behavior (Reinforcements =guide to desired behavior) Positive Reinforcements- Increasing behaviors by presenting positive stimuli. A positive reinforcer is any stimulus that, when presented after a response, strengthens the response. Negative Reinforcements- Increasing behaviors by stopping or reducing negative stimuli, such as shock. A negative reinforcer is any stimulus that, when removed after a response, strengthens the response ( negative reinforcements are not punishments) Punishment- an event that decreases the behavior that it follows.