The sphenoidal sinus near F opens into the upper meatus.    From Wordnik.com.  [Surgical Anatomy] Reference

I went to the doctor and he ran an 8-inch trocar, like a giant hypodermic needle, up my nose, through the bone and into my sphenoidal sinus.    From Wordnik.com.  [When a Pack of Cigarettes Costs $222 - Freakonomics Blog - NYTimes.com] Reference

Skull at birth, showing sphenoidal and mastoid fonticuli.    From Wordnik.com.  [Illustrations. Fig. 198] Reference

According to Cleland, each sphenoidal concha is ossified from four centers.    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

The sphenoidal Conchæ (conchæ sphenoidales; sphenoidal turbinated processes).    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

Sometimes the sphenoidal concha forms a small part of this wall (see page 152).    From Wordnik.com.  [II. Osteology. 5c. The Exterior of the Skull] Reference

They communicate with the frontal, ethmoidal, sphenoidal, and maxillary sinuses.    From Wordnik.com.  [II. Osteology. 5d. The Interior of the Skull] Reference

The point where the great wing of the sphenoid joins the sphenoidal angle of the parietal.    From Wordnik.com.  [II. Osteology. 5d. The Interior of the Skull] Reference

—The zygomatic articulates with four bones: the frontal, sphenoidal, temporal, and maxilla.    From Wordnik.com.  [II. Osteology. 5b. 4. The Zygomatic Bone] Reference

The superior border supports the orbital process in front and the sphenoidal process behind.    From Wordnik.com.  [II. Osteology. 5b. 5. The Palatine Bone] Reference

The orbital and sphenoidal processes are separated from one another by the sphenopalatine notch.    From Wordnik.com.  [II. Osteology. 5b. 5. The Palatine Bone] Reference

On either side of the crest is an irregular opening leading into the corresponding sphenoidal air sinus.    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

It rests upon the clivus of the sphenoidal bone, and is limited above and below by well-defined borders.    From Wordnik.com.  [IX. Neurology. 4a. The Hind-brain or Rhombencephalon] Reference

This border is continuous above with the sphenoidal process; below it expands into the pyramidal process.    From Wordnik.com.  [II. Osteology. 5b. 5. The Palatine Bone] Reference

Above the superior concha is a narrow recess, the sphenoethmoidal recess, into which the sphenoidal sinus opens.    From Wordnik.com.  [X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell] Reference

—The sphenoidal process is a thin, compressed plate, much smaller than the orbital, and directed upward and medialward.    From Wordnik.com.  [II. Osteology. 5b. 5. The Palatine Bone] Reference

—The sphenoidal conchæ are two thin, curved plates, situated at the anterior and lower part of the body of the sphenoid.    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

One, the pterion ossicle, sometimes exists between the sphenoidal angle of the parietal and the great wing of the sphenoid.    From Wordnik.com.  [II. Osteology. 5a. 6. Ethmoid bone] Reference

The sphenoidal sinus opens into a recess, the sphenoethmoidal recess, which is placed above and behind the superior concha.    From Wordnik.com.  [II. Osteology. 5d. The Interior of the Skull] Reference

The sphenoidal angle, thin and acute, is received into the interval between the frontal bone and the great wing of the sphenoid.    From Wordnik.com.  [II. Osteology. 5a. 2. The Parietal Bone] Reference

An aperture of variable size exists in the anterior wall of each, and through this the sphenoidal sinus opens into the nasal cavity.    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

The sphenoidal sinuses are present as minute cavities at the time of birth (Onodi), but do not attain their full size until after puberty.    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

A slender filament (sphenoidal) ascends from it to the nerve of the Pterygoid canal, and a small branch connects it with the chorda tympani.    From Wordnik.com.  [IX. Neurology. 5e. The Trigeminal Nerve] Reference

The lateral fontanelles (Fig. 198) are small, irregular in shape, and correspond respectively with the sphenoidal and mastoid angles of the parietal bones.    From Wordnik.com.  [II. Osteology. 5d. The Interior of the Skull] Reference

—The body, more or less cubical in shape, is hollowed out in its interior to form two large cavities, the sphenoidal air sinuses, which are separated from each other by a septum.    From Wordnik.com.  [II. Osteology. 5a. 5. The Sphenoid Bone] Reference

198– Skull at birth, showing sphenoidal and mastoid fonticuli.    From Wordnik.com.  [II. Osteology. 5d. The Interior of the Skull] Reference

A, sphenoidal sinus.    From Wordnik.com.  [A Practical Physiology] Reference