The occipitofrontalis muscle consists of four bellies that arise from the occipital bone and eyebrow and connect via an aponeurosis. The facial muscles are arranged in groups around the eye, nose, and mouth and produce facial expressions by pulling on the skin. The buccinator muscle compresses the cheeks and lips against the teeth to prevent food accumulation in the mouth.
1.picture of tongue
2. Cadaveric picture of tongue
3. Introduction of tongue
4. function of tongue
5. presenting parts
6. parts of tongue
7. diagram of tongue
8. Base of tongue
9. Dorsal surface of tongue
10. Papillae
11. Histology of papillae
12. Ventral surface of tongue
13 ventral surface
14. lateral margin of tongue
15. root of tongue
16. Muscles of tongue
17.Muscles diagram
18. Genioglossus
19.Hyoglossus
20. Superficial relation of hyoglossus
21. Deep relation of hyoglossus
22.Styloglossus
23.Palatoglossus
24.Intrinsic muscles of tongue
25.Muscles altering the shape of the tongue
26.Nerve supply of tongue
27.Sensory nerve supply of tongue
28.motor supply- diagram
29. sensory supply- diagram
30. Taste sensation part
31. Lymphatic Drainage
32.Pecularities of lymphatic drainage
33. Applied Anatomy
34. Tongue Tie
35.Bifid tongue
36. Lingual thyroid & Thyroglossal cyst
37.glossitis
38.Carcinoma of the tongue
39. Identify the structures
40. Thank you
hypoglossal nerve, origin course an termination of hypoglossal nerve, function of hypoglossal nerve, clinical examination of hypoglossal nerve, hypoglossal nerve palsy
Seven cervical vertebrae
Identified by the presence of foramen in their transverse processes called foramen transversarium
3rd to 6th are typically have common features
1st, 2nd,and 7th are atypical
Ring-shaped and has no body and no spine
Consists of:
Right and left lateral masses
Short anterior arch and a long curved posterior arch
(c) Right and left transverse processes
Face is the most prominent part of the body
Facial muscles also known as the ‘mimetic muscles’, represent remnants of the ‘Panniculus Carnosus’ ,continuous subcutaneous muscle sheet seen in some animals.
Facial Musculature are the only somatic muscles in the body attached on one side to the bone and the other side to the skin; thus specialized for expression
1.picture of tongue
2. Cadaveric picture of tongue
3. Introduction of tongue
4. function of tongue
5. presenting parts
6. parts of tongue
7. diagram of tongue
8. Base of tongue
9. Dorsal surface of tongue
10. Papillae
11. Histology of papillae
12. Ventral surface of tongue
13 ventral surface
14. lateral margin of tongue
15. root of tongue
16. Muscles of tongue
17.Muscles diagram
18. Genioglossus
19.Hyoglossus
20. Superficial relation of hyoglossus
21. Deep relation of hyoglossus
22.Styloglossus
23.Palatoglossus
24.Intrinsic muscles of tongue
25.Muscles altering the shape of the tongue
26.Nerve supply of tongue
27.Sensory nerve supply of tongue
28.motor supply- diagram
29. sensory supply- diagram
30. Taste sensation part
31. Lymphatic Drainage
32.Pecularities of lymphatic drainage
33. Applied Anatomy
34. Tongue Tie
35.Bifid tongue
36. Lingual thyroid & Thyroglossal cyst
37.glossitis
38.Carcinoma of the tongue
39. Identify the structures
40. Thank you
hypoglossal nerve, origin course an termination of hypoglossal nerve, function of hypoglossal nerve, clinical examination of hypoglossal nerve, hypoglossal nerve palsy
Seven cervical vertebrae
Identified by the presence of foramen in their transverse processes called foramen transversarium
3rd to 6th are typically have common features
1st, 2nd,and 7th are atypical
Ring-shaped and has no body and no spine
Consists of:
Right and left lateral masses
Short anterior arch and a long curved posterior arch
(c) Right and left transverse processes
Face is the most prominent part of the body
Facial muscles also known as the ‘mimetic muscles’, represent remnants of the ‘Panniculus Carnosus’ ,continuous subcutaneous muscle sheet seen in some animals.
Facial Musculature are the only somatic muscles in the body attached on one side to the bone and the other side to the skin; thus specialized for expression
Face is the most prominent part of the body
Facial muscles also known as the ‘mimetic muscles’, represent remnants of the ‘Panniculus Carnosus’ ,continuous subcutaneous muscle sheet seen in some animals.
Facial Musculature are the only somatic muscles in the body attached on one side to the bone and the other side to the skin; thus specialized for expression
MUSCLES OF FACIAL EXPRESSIONS & PROSTHODONTIC PERSPECTIVE.pptxDr. Aayush Shah
The seminar titled "Muscles of Facial Expression and Their Prosthodontic Perspective" explores the complex interplay between facial muscles and prosthodontics, offering a thorough understanding of their critical function in both oral function and aesthetics. In this talk, the facial muscles' anatomy and physiology will be examined, with an emphasis on how important they are to prosthodontic procedures and treatment outcomes.
Development of Face /certified fixed orthodontic courses by Indian dental ac...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
(May 29th, 2024) Advancements in Intravital Microscopy- Insights for Preclini...Scintica Instrumentation
Intravital microscopy (IVM) is a powerful tool utilized to study cellular behavior over time and space in vivo. Much of our understanding of cell biology has been accomplished using various in vitro and ex vivo methods; however, these studies do not necessarily reflect the natural dynamics of biological processes. Unlike traditional cell culture or fixed tissue imaging, IVM allows for the ultra-fast high-resolution imaging of cellular processes over time and space and were studied in its natural environment. Real-time visualization of biological processes in the context of an intact organism helps maintain physiological relevance and provide insights into the progression of disease, response to treatments or developmental processes.
In this webinar we give an overview of advanced applications of the IVM system in preclinical research. IVIM technology is a provider of all-in-one intravital microscopy systems and solutions optimized for in vivo imaging of live animal models at sub-micron resolution. The system’s unique features and user-friendly software enables researchers to probe fast dynamic biological processes such as immune cell tracking, cell-cell interaction as well as vascularization and tumor metastasis with exceptional detail. This webinar will also give an overview of IVM being utilized in drug development, offering a view into the intricate interaction between drugs/nanoparticles and tissues in vivo and allows for the evaluation of therapeutic intervention in a variety of tissues and organs. This interdisciplinary collaboration continues to drive the advancements of novel therapeutic strategies.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
1. MUSCLES OF THE SCALP
Occipitofrontalis
(epicranius)
Origin: It consists of four bellies, two
occipital and two frontal, connected
by an aponeurosis.
The occipital bellies are smaller and
arise from the highest nuchal line on
the occipital bone and pass forward
to be attached to the aponeurosis.
The frontal bellies are larger and
closer to each other in the middle
line
The arise from the skin and
superficial fascia of the eyebrow and
pass backward to be attached to the
aponeurosis.
2. Muscles of facial expression: Associated with (1)
the forehead, (2) orbit, (3) mouth, and (4) nose.
We will study these muscles in lab, for now think of the facial
muscles in groups:
4. 4
Muscles of Face (muscles of facial
expression)
They are called ms. Of expression
because they pull skin of face to
produce various expressions.
They are arranged in groups around
the eye, nose & mouth.
They have bony origin.
They are inserted into skin of face
(no deep fascia in face).
They are supplied by branches of
facial N., Except levator P.S. by
occulomotor N. (striated ms.) +
sympathetic N. (smooth ms.).
5. 5
Muscles of Face
1- levator palpebrae superioris
(the dilator ms. of eyelids, lying
in the orbital cavity).
2-Orbicularis oculi (the sphincter
ms of eyelids).
3-Corrugator supercilii (deep to
orbicularis oculi). 4-
Occipitofrontalis (ms. of scalp).
A) Muscles of eyelids :
B) Muscles of Nose :
1-Procerus.
2-Compressor & dilator naris.
6. 6
Muscles of FaceC) Muscles of Lips :
Sphincter muscle of the lips :
“ Orbicularis Oris”.
Dilator muscles of the lips :
1-Levator labii superioris alaeque
nasi. 2-Levator
labii superioris. 3-Depressor
labii inferioris. 4-
Zygomaticus minor. 5-
Zygomaticus major. 6-
Levator anguli Oris (deep to
zygomatic ms.). 7-
Depressor anguli Oris.
8-Risorius. 9-
Mentalis.
D) Muscles of Cheek :
“Buccinator”
7. 7
Muscles of Face (muscles of facial
expression)
3 large muscles :
1- Buccinator m. (ms. of cheek).
2- Orbicularis oculi m. 3-
Orbicularis oris m.
Many small muscles :
1- Dilator ms. of lips (separate
lips) : -
Levator labii superioris alaeque nasi,
levator labii superioris. -
Zygomaticus minor & major. -
Levator anguli oris, risorius & depressor
anguli oris. -
Depressor labii inferioris & mentalis.
origin : bones & fascia around oral
aperature.
Insertion : into substance of lips.
8. 8
2- Corrugator supercilli : -It
lies deep to orbicularis oculi. origin :
superciliary arch (bone).
Insertion : skin of eyebrow.
Action : vertical wrinkles of forehead, as in
frowning. 3-
Compressor naris & dilator naris :
origin : maxilla. Insertion : the fibres are
continuous with those of opposite side in
front of the bridge of nose to form
aponeurosis of bridge of nose.
Action : compesses & widens nasal
cartilages and aperature.
4- Procerus : -
It is continuous with the medial part of
occipito-frontalis ms.
Origin : nasal bone. Insertion :
medial part of skin of eyebrow. Action :
wrinkles skin of nose.
9. 9
Orbicularis oculi :
1- Orbital part :
Origin : medial palpebral ligament +
adjoining bone.
Insertion :The fibres have no lateral
attachment, it loops return to
origin. Action :
closes eyelids by throwing skin
around orbit into folds to protect
eyeball.
2- Palpebral part :
Origin : medial palpebral ligament.
Insertion : lateral palpebral raphe &
skin of eyelids.
Action : closes palpebral fissure of
eyelids gently (sleep) and dilates
lacrimal sac.
10. 10
Orbicularis oris :
Origin : maxilla, mandible & deep
skin.
Insertion : encircles oral orifice to be
inserted to the m.m lining the inner
surface of lips. Action :
compresses the lips together to
close the mouth (sphincter muscle
of lips).
11. 11
Muscle of Cheek : Buccinator Muscle :
Origin : from outer surface of
maxilla & mandible opposite the
molar teeth + from pterygomandibular
ligament.
Insertion : 1-
upper fibres : into upper lip. 2-
lower fibres : into lower lip. 3-
middle fibres : decussate at the angle
of mouth.
N.supply : buccal branch of facial N.
Action : 1- it
compresses the cheeks & lips against
the teeth to prevent accumulation of
food in vestibule of mouth.
2- it is used in wistling, when cheeks
are distended with air.
12. 12
Muscle of Cheek : Buccinator Muscle :
It is covered on outside by
buccopharyngeal fascia &
buccal pad of fat.
Its deep surface is lined by
buccal mucosa.
It is pierced by :
1-parotid duct , opposite
upper 2nd molar tooth.
2-Buccal branch of
mandibular nerve (sensory)
to supply m.m of cheek on
the inner surface of
buccinator muscle.
13. 13
Facial muscle Paralysis
• The facial ms. Are innervated by facial N.
• Cause : Damage to facial N. (by a tumor in internal
acoustic meatus or parotid galnd) /or operation or
infection in middle ear / or perineuritis, Bell’s palsy
in facial nerve canal.
• Results : Lower motor neuron lesion which involves
distortion of face+ drooping of lower eyelid + angle
of mouth will sag on the affected side. /But Upper
motor neuron lesion is due to lesion of pyramidal
tract and here the upper face is normal because the
neurons supplying this part receive corticobulbar
fibres from both cerebral cortices.
39. Fascia of the Face
Superficial
fascia is
copious and
loose –
however,
there is no
discrete layer
of deep fascia
of the face
except …
40. 40
Facial muscle Paralysis
• The facial ms. Are innervated by facial N.
• Cause : Damage to facial N. (by a tumor in internal
acoustic meatus or parotid galnd) /or operation or
infection in middle ear / or perineuritis, Bell’s palsy
in facial nerve canal.
• Results : Lower motor neuron lesion which involves
distortion of face+ drooping of lower eyelid + angle
of mouth will sag on the affected side. /But Upper
motor neuron lesion is due to lesion of pyramidal
tract and here the upper face is normal because the
neurons supplying this part receive corticobulbar
fibres from both cerebral cortices.