Question

1. what does the combining form phren/o- mean?

speech
one
four
mind

1. the retina has the, which is the sensory portion associated with sight.

ora serrata
pars ciliaris
pars erratica
pars optica

Explanation:

• For question 21: The combining form "phren/o -" is related to the mind. In medical terminology, it is used in words like "phrenology" (the study of the mind in a historical sense).
• For question 22: The retina has the pars optica. The pars optica contains the photoreceptor cells (rods and cones) which are responsible for the sensory aspect of sight. The ora serrata is the锯齿 - like junction between the pars optica and the non - sensory parts of the retina. Pars ciliaris is related to the ciliary region and not the main sensory part for sight. Pars erratica is not a standard term related to the sensory portion of the retina for sight.

Answer:

1. mind
2. pars optica