posterior fontanelle


Also found in: Wikipedia.

pos·te·ri·or fon·ta·nelle

[TA]
a triangular interval at the union of the lambdoid and sagittal sutures where occipital angles of the parietal bones meet the occipital.
References in periodicals archive ?
To remove the skull cap, after the dead foetuses are placed in a tray in a supine position, a circular skin incision is given with a scissors, 1cm above the eyebrows in the frontal area, running laterally and posteriorly above the ears and ending at the posterior fontanelle.
Instrument placement was considered optimal when the vacuum cup included the flexion point (3 cm anterior to the posterior fontanelle) and the posterior fontanelle, with central placement.
Most of the dermoid cysts with extensions were on the posterior fontanelle or occipital scalp, "where we would have done preoperative imaging" to look for intracranial connections, Dr.
Next, the clinician exerts pressure with the tips of the fingers to rotate the posterior fontanelle upward and toward the symphysis pubis.
1) It is located in the lateral wall of the middle meatus, usually in the anterior or posterior fontanelle where the medial wall of the maxillary sinus is membranous.
There was macrocephaly (hydrocephalus with head circumference of 42 cm), anterior and posterior fontanelle were wide open with sutural separation (Fig.
The maxillary sinus ostium was opened, and the posterior fontanelle mucosa was removed to create a large antrostomy opening.
The posterior fontanelle was opened with a sickle knife, and the backward-cutting forceps were reintroduced to enlarge the antrostomy to join the natural ostium.
The posterior fontanelle is the unossified area of the skull at the junction of the sagittal and lambdoidal sutures.
2] The boundaries of the posterior fontanelle include the posterior end of the uncinate process anteriorly and the palatine bone posteriorly.
Initially, this was thought to represent an accessory ostium of the maxillary sinus in its posterior fontanelle, but probing during surgery confirmed that it arose from the ethmoid bulla.

Medical browser ?
Full browser ?