Briefly describe the structure and function of fontanelles.
They are soft spots in the fetal and neonatal skull made of dense connective tissue. They ease childbirth and allow for post-natal skull growth (and brain growth).
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Question 2) A skull with five gracile features and one robust feature is most likely a _______
A. male
B. female
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Question 3) One of the ossicles is the incus.
Indicate whether this statement is true or false.
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Question 4) The hyoid bone is located between the
A. mandible and the larynx.
B. maxilla and the mandible.
C. pharynx and the nasal cavity.
D. cranium and the axilla.
E. larynx and the trachea.
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Question 5) Of the following list, which describe the functions of the paranasal sinuses?
a: Warm and moisten inhaled air
b: Strengthen the bone
c: Provide resonance to the voice
A. a, b, and c
B. None of the listed functions describe those of the sinuses.
C. a only
D. b only
E. a and c
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Question 6) The membranous sheets that connect developing cranial bones are called
A. sutures.
B. fontanelles.
C. intraosseous membranes.
D. craniochondral articulations.
E. ossicles.
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Question 7) Which is characteristic of a female skull, as compared to a male skull?
A. Chin pointed and triangular
B. Mandibular angle greater than 125 degrees
C. Little or no prominence to superciliary arches
D. External surface of occipital bone relatively smooth
E. All of the choices are characteristic of a female skull.
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Question 8) Which bone bears the greater and lesser cornua?
A. Maxilla
B. Stapes
C. Hyoid
D. Incus
E. Mandible
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Question 9) Developmentally, the most significant growth in the skull occurs
A. between the ages of 5 and 10.
B. between the ages of 10 and 15.
C. before age 5.
D. between the ages of 15 and 20.
E. between the ages of 20 and 25.
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Question 10) Which fontanel is the last to close?
A. Anterior
B. Sphenoidal
C. Mastoid
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