RIO SALADO BIO 201 EXAM 2 QUESTIONS WITH DETAILED ANSWERS AND SOLUTIONS 2026

RIO SALADO BIO 201 EXAM 2 QUESTIONS
WITH DETAILED ANSWERS AND SOLUTIONS
2026

◉ Why is the ____ the only freely moving bone in the skull? Answer:
Mandible;
connected to the rest of the skull by a freely moving joint


◉ why are the first two cervical vertebrae assigned unique names?
Answer: have NO intervertebral disc between them
highly modified


◉ what are the first two cervical vertebrae named, C1 and C2 ?
Answer: C1= atlas
C2=axis


◉ C1 has no ___ and no ___ ____ Answer: no body
no spinous process


◉ Axis has a body, spine, and other typical vertebral process, its only
unusual feature is what? Answer: knoblike dens, or odontoid
process.

, ◉ Atlas (C1) allows you to do what with your head? Answer: "carry"
the skull
Allows you to nod "yes"


◉ Axis allows you to do what with your head? Answer: rotate it side
to side saying "no"


◉ What is the only bone that does not articulate with another bone?
Answer: hyoid bone


◉ hyoid bone is anchored by the narrow ____ _____ to the styloid
processes Answer: stylohyoid ligaments


◉ frontal: forms ____
-contains ____ Answer: sinuses


◉ parietal: forms most of the ___ and ___ aspects of the skull Answer:
superior
lateral


◉ occipital: forms ____ aspect and most of the ___ of the skull Answer:
posterior