Ch. 7 Anatomy 2
Terms
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- Oval, processes w/ convex surfaces on either side of the foramen magnum?
- occipital condyles
- Forms the atlanto-occipital joint?
- OCCIPITAL CONDYLES articulate with depressions on ATLAS (C1).
- The formation of the atlanto-occipital joint allows you to rotate your head side to side? T/F
-
FALSE
-allows head to say "yes"- - A prominent line projection on the posterior surface of the occipital bone just above the foramen magnum?
-
external occipital protuberance
-bump on back of head, just above the nape of neck- - A large, fibrous elastic ligament that extends from the external occipital protuberance to C7, to help support the head?
-
ligamentum nuchae
-(nucha= nape of neck)- - Considered the KEYSTONE of the cranial floor b/c it articulates w/ all other cranial bones, holding them together?
- Sphenoid bone
-
Where would you find the sella turcica?
A.mandible
B.a farm
C.vomer
D.sphenoid bone - D. sphenoid bone
- The greater and lesser wings of the sphenoid bone form part of the floor of the cranium and the posterior part of the orbit of the eye? T/F
- TRUE
-
Where would you find the pterygoid processes?
A.Axis
B.4th rib
C.sphenoid bone
D.in the brain stem -
C. sphenoid bone
-project inferiorly fromthe points where the body and greater wings unite- - Located on the midline in the anterior part of the cranial floor medial to the orbits, anterior to the sphenoid and posterior to the nasal bones?
- ethmoid bone
- The ethmoid bone involves everything nasal in the area? T/F
- TRUE
- Where would you find the cribiform plate?
- ethmoid bone
- The cribiform plate contains the olfactory foramen, through which the jugular vein passes? T/F
-
FALSE
-the Olfactory nerve passes- - Superior from the cribiform plate a process called_______ serves as a point of attachment for the membranes that cover the brain?
- crista galli
- Projecting inferiorly from the cribiform plate is the _______, which forms the superior portion of nasal septum?
- perpendicular plate
- Scroll-shaped projections lateral to the nasal septum, aids in sense of smell, warms, moistens and filters inhaled air before it passes into lungs?
- superior nasal concha (or turbinate) and the middle nasal concha.
- Forms the bridge of the nose?
- nasal bones
- Considered the keystone facial bones b/c they articulate w/ every bone of the face EXCEPT the mandible?
- maxillae
- Each maxillae contains alveolar processes that contain the alveoli for the upper teeth? T/F
- TRUE
- A horizontal projection of the maxilla that forms the anterior three-quarters of the hard palate?
- palatine process