Question

1. the slash lines (/) in osteopor/o/sis indicate that the vowel o may be used as part of:

○ osteo- and -sis
○ osteo- and -por
○ poro- and osis
○ por- and -osis

1. mento- means ________ in the context of the musculoskeletal system.

○ chin
○ muscle
○ mandible
○ jaw

Explanation:

Question 79

In medical terminology, the slash (/) with a vowel (here, O) indicates a combining vowel. For "osteopor/o/sis", we analyze the word parts: "osteopor" can be broken as "osteo-" (bone) and "por-" (porous), and the combining vowel O can be used between "por-" and form "poro-" or between "por-" and "-osis" to form "porosis"? Wait, no, let's re - examine. The word is "osteoporosis", which is formed from "osteo-" (bone), "por-" (porous), and "-osis" (condition). The combining vowel O is used to connect "por-" and "-osis" (making "porosis" or as a combining vowel between "por-" and the next part) or between "osteo-" and "por-"? Wait, no, the correct breakdown: "osteopor/o/sis" means that the O can be used to connect "por-" (so "poro-") and also to connect with "-osis" (so " - osis" with O as part of "poro-" and " - osis"? Wait, no, let's look at the options. The options are about which parts the O can be part of. Let's analyze each option:

• Option 1: "osteo - " and " - sis": "osteo - " ends with O, and " - sis" starts with S, so O is not part of " - sis". Eliminate.
• Option 2: "osteo - " and " - por": "osteo - " ends with O, " - por" starts with P, O is not part of " - por". Eliminate.
• Option 3: "poro - " and "osis": "poro - " includes O (from por/o), and "osis" - but "osis" is "-osis", so O is not part of "osis" (it's " - osis"). Eliminate.
• Option 4: "por - " and " - osis": The combining vowel O can be used to connect "por - " (making "poro - ") and also to be part of " - osis" (as " - osis" with O, so O is part of " - osis" when combined with "por - " via the combining vowel. So the O can be part of "por - " (when combined as "poro - ") and " - osis" (as " - osis" with O). So this option is correct.

In the musculoskeletal system, the prefix "mento - " refers to the chin. Let's analyze the other options:

• "muscle" is related to prefixes like "myo - " or "musculo - ". Eliminate.
• "mandible" is related to "mandibulo - " or "mand - ". Eliminate.
• "jaw" is related to "gnatho - " or "maxillo - /mandibulo - " for different parts of the jaw. Eliminate.
• "chin" is the correct meaning of "mento - " in the musculoskeletal context (e.g., mentum is the chin in anatomical terms, so "mento - " refers to chin).

Answer:

D. por - and - osis

Question 80