HW #10

Match the division of the vertebral column with its description.

Cervical vertebrae: Seven vertebrae Thoracic vertebrae: Each one connects to a rib pair Sacrum: Five fused vertebrae Coccyx: Also called the "tailbone"

Which suture is the articulation between the frontal and parietal bones?

Coronal

Match the muscle of the anterior neck with its function.

Digastric: Depresses mandible; elevates hyoid bone Geniohyoid: Elevates the hyoid bone Sternohyoid: Depresses the hyoid bone Omohyoid: Depresses and fixes hyoid during opening of mouth

An important role of the vertebral column is protection of the brain, spinal cord, and spinal nerves.

False

Match the description of the vertebrae with their associated region.

Lumbar vertebrae: Largest vertebrae Cervical vertebrae: Contain transverse foramina Thoracic vertebrae: Contain costal facets

Which of the following is not a cranial bone?

Mandible

Which muscle is the most powerful of the masticatory muscles, and functions to elevate and protract the mandible?

Masseter

Check all of the following that are facial bones.

Maxilla Nasal Zygomatic Lacrimal Vomer

Which muscle encircles the opening of the mouth?

Orbicularis oris

Which of the following fibrous joints allows for slight movement with articulating bones that are joined by long strands of dense regular connective tissue?

Syndesmosis

Most fibrous joints are immobile or only slightly mobile.

True

The "soft spots" on an infant's head are caused by which of the following?

fontanelles

Check all of the following that are a function of the paranasal sinuses.

warm and humidify inhaled air Make some skull bones lighter Provide resonance to the voice