EXTRA CREDIT 🙂 3. Which type of photoreceptor would produce the following type of current?  How do you know?  It says inward current – what type of ions might be responsible for this current? Why? (2 pts)   

When viewed with an ophthalmoscope, there are several different structures that can be observed on the surface of the retina, including the optic disk and macula lutea.  How would you identify these two structures on an image of the retina and what functions and characteristics would you use to describe these regions? 

Compare the cutaneous mechanosensory and discriminative pain pathways from the lower body with respect to anatomy and sensory modality. For each pathway, where are the cell bodies and axon terminals of the first-, second-, and third-order neurons? Where does each pathway decussate?  Be as detailed as possible! (8 pts) 

The touch sensitivity of a given area can be measured by the two-point discrimination protocol.  Larger receptive field areas will have a innervation density and would produce a  two-point discrimination.

Match the function with the appropriate structure of the eye (each will only be used once):

Females are twice as likely to be colorblind, because the genes for cones are located on the X-chromosomes and females have two X chromosomes  

Even though the retina is in the periphery, it is considered part of the central nervous system because it forms from an out-pocketing of the diencephalon called the optic vesicle.  

Because there are several different color types of cones, they are sensitive to dimmer illumination levels compared to rods.

. During auscultation of a patient’s heart, what 4 structures will you listen to?

For each muscle, name the joint/limb that it moves/acts on   Iliopsaos- Fibularis longus- Trapezius- Adductor Longus- Gastronemius-