Podcast
Questions and Answers
Which suture connects the parietal bone and the occipital bone?
Which suture connects the parietal bone and the occipital bone?
Which of the following is NOT a cranial bone?
Which of the following is NOT a cranial bone?
What is the name of the point where the coronal and sagittal sutures intersect?
What is the name of the point where the coronal and sagittal sutures intersect?
What is the name of the thinnest portion of the lateral skull where the middle meningeal artery lies?
What is the name of the thinnest portion of the lateral skull where the middle meningeal artery lies?
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Which of these is NOT a layer of the scalp?
Which of these is NOT a layer of the scalp?
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What is another name for the 'Dangerous Layer' of the scalp?
What is another name for the 'Dangerous Layer' of the scalp?
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Which bone is most difficult to visualize in imaging?
Which bone is most difficult to visualize in imaging?
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What is the name of the landmark for the head circumference measurement?
What is the name of the landmark for the head circumference measurement?
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Which muscle is responsible for the action of 'pulling the eyebrows together'?
Which muscle is responsible for the action of 'pulling the eyebrows together'?
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Which cranial nerve is responsible for the action of the Levator Palpebrae Superioris muscle?
Which cranial nerve is responsible for the action of the Levator Palpebrae Superioris muscle?
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What is the primary action of the Risorius muscle?
What is the primary action of the Risorius muscle?
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Which muscle is responsible for the 'sneering' action?
Which muscle is responsible for the 'sneering' action?
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Which of the following correctly describes the relationship between the Superior Oblique muscle and its associated cranial nerve?
Which of the following correctly describes the relationship between the Superior Oblique muscle and its associated cranial nerve?
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If CN VI is weak, which condition is likely to be present?
If CN VI is weak, which condition is likely to be present?
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Which muscle is responsible for closing the lips?
Which muscle is responsible for closing the lips?
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Which of the following muscles is NOT involved in facial expression?
Which of the following muscles is NOT involved in facial expression?
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Which muscle is responsible for mouth closing and protrusion?
Which muscle is responsible for mouth closing and protrusion?
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What is the primary action of the external pterygoid muscle?
What is the primary action of the external pterygoid muscle?
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When a patient has limitation of mouth opening (LOM) towards the right, which muscle should be stretched?
When a patient has limitation of mouth opening (LOM) towards the right, which muscle should be stretched?
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Which of the following conditions is characterized by pain upon mouth opening and limitation in mouth opening?
Which of the following conditions is characterized by pain upon mouth opening and limitation in mouth opening?
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What distinguishes TMJ Synovitis from TMJ Capsulitis?
What distinguishes TMJ Synovitis from TMJ Capsulitis?
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Which muscle is innervated by CN XII and is responsible for tongue protrusion?
Which muscle is innervated by CN XII and is responsible for tongue protrusion?
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In cases of TMJ hypermobility, what happens to the range of motion (ROM)?
In cases of TMJ hypermobility, what happens to the range of motion (ROM)?
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Which direction is the most common for TMJ dislocation?
Which direction is the most common for TMJ dislocation?
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What primarily defines the boundaries of the Submental Triangle?
What primarily defines the boundaries of the Submental Triangle?
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Which triangle is bounded by the posterior belly of digastric and the superior fibers of omohyoid?
Which triangle is bounded by the posterior belly of digastric and the superior fibers of omohyoid?
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What is the normal mouth opening in millimeters for healthy individuals?
What is the normal mouth opening in millimeters for healthy individuals?
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During mandibular depression, at what point does anterior translation occur?
During mandibular depression, at what point does anterior translation occur?
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Which muscle is primarily responsible for mouth closing?
Which muscle is primarily responsible for mouth closing?
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What is the expected range for lateral deviation (mandibular excursion)?
What is the expected range for lateral deviation (mandibular excursion)?
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What joint type is concerned with the articulation between the mandibular condyle and fossa?
What joint type is concerned with the articulation between the mandibular condyle and fossa?
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What movement occurs during bilateral mandibular protrusion?
What movement occurs during bilateral mandibular protrusion?
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Which cranial nerve is responsible for innervating the sternocleidomastoid muscle?
Which cranial nerve is responsible for innervating the sternocleidomastoid muscle?
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What characteristic distinguishes C1, the Atlas, from other cervical vertebrae?
What characteristic distinguishes C1, the Atlas, from other cervical vertebrae?
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Which foramen is associated with structural components VII and VIII?
Which foramen is associated with structural components VII and VIII?
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Which muscle performs ipsilateral flexion and is innervated by Cranial Nerve V?
Which muscle performs ipsilateral flexion and is innervated by Cranial Nerve V?
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What is the primary function of the scalene muscles?
What is the primary function of the scalene muscles?
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Which of the following statements regarding the Atlantoaxial joint is true?
Which of the following statements regarding the Atlantoaxial joint is true?
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What type of fracture is associated with hyperextension of the upper cervical spine?
What type of fracture is associated with hyperextension of the upper cervical spine?
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Which bone does not articulate with any other bone in the human body?
Which bone does not articulate with any other bone in the human body?
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Flashcards
Glabella
Glabella
Skin area located between the eyebrows.
Occipitofrontalis
Occipitofrontalis
Muscle that elevates the eyebrows, seen when surprised.
Zygomaticus Major
Zygomaticus Major
Primary muscle responsible for smiling.
Orbicularis Oris
Orbicularis Oris
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Levator Palpebrae Superioris
Levator Palpebrae Superioris
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Orbicularis Oculi
Orbicularis Oculi
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Inferior Rectus
Inferior Rectus
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CN Exit Points
CN Exit Points
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Scalp
Scalp
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Aponeurosis
Aponeurosis
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Cranial bones
Cranial bones
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Facial bones
Facial bones
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Coronal Suture
Coronal Suture
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Anterior Fontanelle
Anterior Fontanelle
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Inion
Inion
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Pterion
Pterion
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Superior Orbital Fissure
Superior Orbital Fissure
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Foramen Rotundum
Foramen Rotundum
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Atlas (C1)
Atlas (C1)
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Axis (C2)
Axis (C2)
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Vertebral Prominens (C7)
Vertebral Prominens (C7)
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Atlantooccipital Joint
Atlantooccipital Joint
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Suprahyoid Muscles
Suprahyoid Muscles
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Scalene Muscles
Scalene Muscles
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Internal Pterygoid
Internal Pterygoid
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Masseter
Masseter
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External Pterygoid
External Pterygoid
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TMJ Disc Displacement
TMJ Disc Displacement
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TMJ Capsulitis
TMJ Capsulitis
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TMJ Synovitis
TMJ Synovitis
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TMJ Hypomobility
TMJ Hypomobility
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TMJ Hypermobility
TMJ Hypermobility
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Submental Triangle
Submental Triangle
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Submandibular Triangle
Submandibular Triangle
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Carotid Triangle
Carotid Triangle
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Occipital Triangle
Occipital Triangle
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Mandibular Depression
Mandibular Depression
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Mandibular Elevation
Mandibular Elevation
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Lateral Deviation
Lateral Deviation
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Capsular Pattern
Capsular Pattern
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Study Notes
Head, Neck, TMJ Anatomy & Conditions
-
Scalp: Soft tissue covering and protecting the cranial vault
- Skin: outermost layer, with sebaceous glands and hair follicles
- Connective tissue: contains major arteries and veins
- Aponeurosis: a sheath connecting occipitalis and frontalis muscles
- Loose areolar tissue (Dangerous Layer): contains numerous blood vessels and emissary veins; vulnerable to injury
- Periosteum: innermost layer, providing nutrition to the scalp and outermost layer of the skull
-
Skull Bones: 22 bones in total, 8 cranial bones
- Parietal: 2
- Temporal: 2
- Frontal: 1
- Occipital: 1
- Ethmoid: 1 (difficult to visualize in imaging)
- Sphenoid: 1 (most difficult to visualize in imaging)
-
Facial Bones: 14 bones
- Nasal: 2
- Inferior Nasal Conchae: 2
- Lacrimal: 2
- Palatine: 2
- Zygomatic: 2
- Vomer: 1
- Maxilla: 2
- Mandible: 2
-
Sutures: Synarthrodial joints connecting cranial bones
- Metopic
- Coronal
- Sagittal
- Lambdoid
- Squamosal
-
Fontanelles: Membranous spaces in the fetal skull, eventually ossifying.
- Anterior fontanelle: closes between 18-24 months; located at the bregma where coronal and sagittal sutures meet
- Posterior fontanelle: closes between 9-12 months; located at the lambda where sagittal and lamboid sutures meet
-
Landmarks of the Skull: Important anatomical features
- NaNaPPIG: Nasion, Nasolabial folds, Philtrum, Pterion, Inion, Glabella
-
Facial Muscles: Muscles for facial expressions
- Occipitofrontalis: Elevates eyebrows
- Corrugator Supercilii: Frowns
- Procerus: Wrinkles bridge of nose
- Zygomaticus Major/Minor: Smiling
- Risorius: Grimace
- Orbicularis Oris: Closes lips
- Buccinator: Blowing, sucking, whistling
- Levator Anguli Oris: Elevates angle of mouth
- Mentalis: Doubling
-
Eye Muscles: Muscles for eye movement
- Levator Palpebrae Superioris: Raises eyelid
- Mueller's muscle: contributes to eyelid elevation
- Orbicularis Oculi: Closes eyes
-
Extraocular Muscles: 6 muscles controlling eye movement
- Superior, Inferior, Lateral, and Medial Recti
- Superior, and Inferior Obliques
- CNs associated with eye muscles
-
Muscles of the neck:
-
Cervical Vertebrae: Structures of the cervical spine
- Small body (C1- Atlas); no body; unique features
- No body; (C2 - Axis); dens/odontoid process
- C7: Vertebral prominens
- Specific cervical pathologies
- Special landmarks (C3-C6)
-
Suprahyoid Muscles: Muscles above the hyoid bone
-
Infrahyoid Muscles: Muscles below the hyoid bone
-
Anterior and Posterior Triangles of the neck (Triangles) - boundaries
-
Temporomandibular Joint (TMJ): Articulation between the mandible and skull
- Modified hinge joint: ginglymoarthrodial -Superior JT:translation, Inferior JT: rotation
- Arthrokinematics: Movements of the TMJ -Muscles of mastication
-
TMJ Conditions: TMJ disorders
- Disc dislocation
- Displacement
- Synovitis
- Hypomobility
- Hypermobility
-
Tongue Muscles: Muscles controlling tongue movement
-
Innervation: Cranial nerves involved in the control
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Description
Explore the intricate anatomy of the head, neck, and temporomandibular joint (TMJ) with this comprehensive quiz. Review key components such as the scalp layers, skull bones, facial bones, and their functions. Test your knowledge on sutures and common conditions affecting this area.