Anatomy of the Skull : Norma Frontalis
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Anatomy of the Skull: Norma Frontalis
Norma Frontalis -When viewed from the front the skull exhibits a somewhat oval outline, limited above by the frontal bone, below by the body of the mandible, and laterally by the zygomatic bones and the mandibular rami. The upper part, formed by the frontal squama, is smooth and convex. The lower part, made up of the bones of the face, is irregular; it is excavated laterally by the orbital cavities and presents in the middle line the anterior nasal aperture leading to the nasal cavities, and below this the transverse slit between the upper and lower dental arcades. Above, the frontal eminences stand out more or less prominently, and beneath these are the superciliary arches, joined to one another in the middle by the glabella. On and above the glabella a trace of the frontal suture sometimes persists; beneath it is the frontonasal suture, the mid-point of which is termed the nasion. Behind and below the frontonasal suture the frontal articulates with the frontal process of the maxilla and with the lacrimal. Arching transversely below the superciliary arches is the upper part of the margin of the orbit, thin and prominent in its lateral two-thirds, rounded in its medial third, and presenting, at the junction of these two portions, the supraorbital notch or foramen for the supraorbital nerve and vessels. The supraorbital margin ends laterally in the zygomatic process which articulates with the zygomatic bone, and from it, the temporal line extends upward and backward. Below the frontonasal suture is the bridge of the nose, convex from side to side, concavo-convex from above downward, and formed by the two nasal bones supported in the middle line by the perpendicular plate of the ethmoid, and laterally by the frontal processes of the maxillæ which are prolonged upward between the nasal and lacrimal bones and form the lower and medial part of the circumference of each orbit. Below the nasal bones and between the maxillæ is the anterior aperture of the nose, pyriform in shape, with the narrow end directed upward. Laterally this opening is bounded by sharp margins, to which the lateral and alar cartilages of the nose are attached; below, the margins are thicker and curve medialward and forward to end in the anterior nasal spine. On looking into the nasal cavity, the bony septum which separates the nasal cavities presents, in front, a large triangular deficiency; this, in the fresh state, is filled up by the cartilage of the nasal septum; on the lateral wall of each nasal cavity, the anterior part of the inferior nasal concha is visible. Below and lateral to the anterior nasal aperture are the anterior surfaces of the maxillæ, each perforated, near the lower margin of the orbit, by the infraorbital foramen for the passage of the infraorbital nerve and vessels. Below and medial to this foramen is the canine eminence separating the incisive from the canine fossa. Beneath these fossæ are the alveolar processes of the maxillæ containing the upper teeth, which overlap the teeth of the mandible in front. The zygomatic bone on either side forms the prominence of the cheek, the lower and lateral portion of the orbital cavity, and the anterior part of the zygomatic arch. It articulates medially with the maxilla, behind with the zygomatic process of the temporal, and above with the great wing of the sphenoid and the zygomatic process of the frontal; it is perforated by the zygomaticofacial foramen for the passage of the zygomaticofacial nerve. On the body of the mandible is a median ridge, indicating the position of the symphysis; this ridge divides below to enclose the mental protuberance, the lateral angles of which constitute the mental tubercles. Below the incisor teeth is the incisive fossa and beneath the second premolar tooth the mental foramen which transmits the mental nerve and vessels. The oblique line runs upward from the mental tubercle and is continuous behind with the anterior border of the ramus. The posterior border of the ramus runs downward and forward from the condyle to the angle, which is frequently more or less everted.
#normafrontalis #skullanatomy #normafrontalisskull #skullanatomy #skullnormafrontalis #normafrontalisanatomy
Пікірлер: 110
I think the mental foramen in present below the 2nd pre molar but not 2nd molar.... Please do consider😅
@doctorbhanuprakash
Жыл бұрын
thank you for correction
@shruthi1829
Жыл бұрын
@@doctorbhanuprakash 🤗ur vdos are amazing sir.... Wish u a very good luck ❤️
@doctorbhanuprakash
Жыл бұрын
sureee
@doctorbhanuprakash
Жыл бұрын
tysm
I love these videos! This KZread channel is awesome!
Thankyou so much for this lecture! Very well explained.
Thank you so much rajitha maam❤️❤️. Before i watching this video, it was a very complicated topic for me. Now most of the doubts were solved.🤗🤗🤗 I'm a medical student of Srilanka
amazing lecture. thank you so much!
Very nice lecture ma'am Thank you !
Very beautiful video 😍 Very much clear
Really very helpful Thank you so much mam !
Excellent lecture!!! Loads of appreciation. Big big big thumbs up!! 👍
@doctorbhanuprakash
2 жыл бұрын
Tysm
If continues this is so helful
Thanku so much ma'am 🙏🙏
Thank you,,,,,it is really helpful
excellent lecture keep going
wow nice explanation
Thanks mam it's helpful and informative plzzzzzzzz make further lectures 🥰🥰👍❤️
Amazing ..... Wow I didn't believe like that easy and helpfull lecture are available in youtube.....❣
@doctorbhanuprakash
Жыл бұрын
It's my pleasure
U guys made it .....very.v.suprrb.....all my sincerely thanks to those hands work 4 this to done
@doctorbhanuprakash
2 жыл бұрын
Thank you so much 😀
Very helpful presentation, thank-you
@doctorbhanuprakash
3 жыл бұрын
Glad it was helpful!
Thanks❤️💯
never saw such a good video
@doctorbhanuprakash
Жыл бұрын
tysm
Wonderful mam its easily understood
@doctorbhanuprakash
3 жыл бұрын
Nice to hear
Great explanation Thank you doctor
@doctorbhanuprakash
3 жыл бұрын
So nice of you
Greatest information,clear my concept thanks mam
@doctorbhanuprakash
3 жыл бұрын
It's my pleasure
Thanks
Wonderful Lecture madam. Thank you so much
@doctorbhanuprakash
2 жыл бұрын
You are most welcome
Excellent
This is very helpful. Thankyou!!
@doctorbhanuprakash
3 жыл бұрын
You're so welcome!
Excellent explain thank you so much,👍👍💕
@doctorbhanuprakash
3 жыл бұрын
🤝🤝🤝
Thank u its really very very helpful ☺. We need more such videos.
Thank you, very helpful 🥰
@doctorbhanuprakash
3 жыл бұрын
Glad it was helpful!
informative
Amazing good job 👍👏
@doctorbhanuprakash
2 жыл бұрын
Thank you! Cheers!
Thank You So Much...it was very helpful 😍
@doctorbhanuprakash
3 жыл бұрын
Ur most welcome
Pls upload posterior interosseous nerve mam
Tq for video mam :)
Please put video on norma basalis,lateralis,and temoporalis also...awesome videos.all points explained so well...
@doctorbhanuprakash
3 жыл бұрын
Sure
Mam keep uploading Its very helpful🙏🙏💯💯💯
@doctorbhanuprakash
3 жыл бұрын
Thank you, I will
Great Thank you 💗💗
@doctorbhanuprakash
2 жыл бұрын
You're welcome 😊
Nice explanation.thank you
@doctorbhanuprakash
3 жыл бұрын
Glad you liked it
*Can be improved* *Visual representation is great*
😊 simple explanation amd easy to understand 😊
@doctorbhanuprakash
3 жыл бұрын
Glad you liked it
best and easy
Excellent fantastic appreciable sensational masterpiece masterclass ❤❤❤❤ 😊
@doctorbhanuprakash
Жыл бұрын
Thank you so much 😀
Have being waiting for this for long. Thanks
@doctorbhanuprakash
3 жыл бұрын
Hope you like it!
@web_ekom1525
3 жыл бұрын
@@doctorbhanuprakash yes I did. Thanks
superb lecture thanku so much😍
@doctorbhanuprakash
Жыл бұрын
Most welcome 😊
Thank you for this! :D
@doctorbhanuprakash
2 жыл бұрын
Our pleasure!
Good work❤
Thank you sir.,.
@doctorbhanuprakash
3 жыл бұрын
Most welcome
Very nice difined
@doctorbhanuprakash
2 жыл бұрын
Thank you! Cheers!
Thank you Mam. What is mean of aperture ? Please Mam explain it.
Waah what an effort💖💖💖
@doctorbhanuprakash
3 жыл бұрын
Tysm
Easily explain it very excellent nice teacher and a lot of thanks mam
@doctorbhanuprakash
Жыл бұрын
Thanks and welcome
Thank you soooooooo much.
@doctorbhanuprakash
2 жыл бұрын
You're welcome!
@marshabutt3275
2 жыл бұрын
@@doctorbhanuprakash ❣❣❣🙂
Best video 👍👍👍
@doctorbhanuprakash
3 жыл бұрын
Thank you so much 😀
Very very helpful 🔥🔥💥💥
@doctorbhanuprakash
2 жыл бұрын
Glad to hear that!
Please continue osteology of individual skull bones
@doctorbhanuprakash
Жыл бұрын
Yes for sure
thanks but I wish if you could add a summarizing labeled picture at the end
Absolutely outstanding Very clean and neat Love from Pakistan 🇵🇰
@doctorbhanuprakash
3 жыл бұрын
Tysm
Is this lectures continues
Thank you mammmm
@doctorbhanuprakash
3 жыл бұрын
Most welcome 😊
T 🙏h 🙏🙏
Nice madam
@doctorbhanuprakash
Жыл бұрын
Thanks a lot
How we will get the pdf of this lecture ???
Plzz explain individual bones
@doctorbhanuprakash
3 жыл бұрын
yes will be posting soon
@47monamibakuli92
3 жыл бұрын
@@doctorbhanuprakash Thanks a lot🤩🤩🤩 u r a blessing to students , praying for your wellbeing
Please name of book
@doctorbhanuprakash
2 жыл бұрын
Dr Vishram singh
💀
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