chapter 7 Flashcards
(42 cards)
The bones in the skull have many different names but what are the boundaries of each bone? Where do they start and stop?
Bones of the skull are separated by immobile joints called sutures.
Which of the following can be considered a function of the paranasal sinuses?
Sinuses take away a minimal amount of strength from bones while reducing the weight of bones.
Which of the bones of the skull would you most associate with hearing and balance?
the temporal bone
Which of the following would be most associated with housing the special sense organs?
the facial bones
Which of the following would be most associated with process of warming and humidifying inhaled air?
the paranasal sinuses
Which is the best description for the function of the cranial bones?
protection of the brain
The sphenoid bone is sometimes referred to as a “key stone” of the skull. This is due to the fact that ________.
he sphenoid is in the center of the skull and it articulates (joins) with all of the other bones of the skull (excluding the mandible)
The sella turcica is part of the ________ bone and houses the ________ gland.
sphenoid; pituitary
The hypothalamus is a region of the brain controlling many aspects of the endocrine system. It works closely with the pituitary gland. The hypothalamus is directly superior to the pituitary and is therefore ________.
superior to the sella turcica
Curvatures of the spine serve the body by ________.
giving additional springiness and flexibility to the spine which absorbs shock
When looking at the range of motion of the various sections of the vertebral column the ________ has the most flexibility
cervical spine
The range of motion as well as the direction of motion for the various regions of the spine differs. For example the lumbar spine is capable of flexion and extension but little rotational movement. While the thoracic spine rotates with little flexion or extension. This is due to variation in ________.
the orientation of the superior and inferior articular facets
The anatomy of the thoracic cage provides ridged support and protection but at the same time is also flexible and mobile. Of the list below, which feature does not aid in the flexibility and movement of the thoracic cage?
the jugular notch
The glenohumeral joint that articulates the humerus to the pectoral girdle is a highly mobile joint. This mobility comes at a cost because ________.
the joint is relatively unstable and can easily dislocate
Of the list below select the one that gives the least explanation for the relatively high mobility of the arms.
The subscapular notch is a passage way for nerves.
The proximal end of the ulna illustrates the relationship of form and function. The rounded trochlear notch articulates with the hourglass shape of the trochlea. This forms a joint that allows for ________.
the hinge like motion of the forearm
The proximal end of the radius illustrates the relationship of form and function. The cup-like surface of the radial head articulates with the rounded shape of the capitulum. This forms a joint that allows for ________.
the rotational motion of the forearm
The axial skeleton includes ________.
the skull, vertebral column, and rib cage
Which vertebra does not have a body?
atlas
The suture that connects the two parietal bones together is the ________.
sagittal
The hyoid bone is unique because it ________.
is the only bone of the body that does not articulate with any other bone
Along with support, the anterior longitudinal ligament of the vertebral column also acts to ________.
prevent hyperextension of the spine
What are the major functions of the intervertebral discs?
o absorb shock and provide flexibility to the spine
Paranasal sinuses are found in which of these facial bones?
maxillae
