Portage Learning A&P 1 Lab 4

Portage Learning: A&P 1 Lab 4
1. The Lambdoidal suture marks the division of which cranial bones?: Occipital bone and
Parietal bones
2. Which endocrine gland is situated in the cranial bone pictured above (high-
lighted in blue)?: The pituitary gland




3. Which facial bone is pictured above (highlighted in blue)?: The left nasal bone




4. Which facial bone is pictured above (highlighted in blue)?: The right maxilla bone.




5. Identify the atypical vertebra pictured above. Explain how you know which specific
vertebra it is.: C1 Atlas vertebra has a large vertebral foramen and lacks a vertebral body.

6. Based upon appearance, state which division of the vertebral column the vertebra
pictured above belongs to, and explain your answer.: This is a typical cervical vertebra.
It has a small vertebral body and transverse foramen which allow for passage of the
vertebral arteries.
7. Identify the bony landmark the lab instructor is specifying with her fingers,
and describe the function of this landmark.: Inferior articular facets join this vertebra to
the vertebra inferior to it.
8. Identify the region of the sternum specified by the lab instructor, and state
which ribs articulate to this region.: This is the region of the gladiolus or the body of the
sternum.
Ribs 2-10 attach directly or indirectly to the body of the sternum.

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