Extra Fun Facts Flashcards
Contents of the Carotid Sheath
Internal Jugular Vein
Carotid Artery
Vagus Nerve
Lymph Nodes
Occipital Triangle
SCM, Trap, Inf. Belly Omohyoid
Brachial Plxs, Accessory n. (Trap, SCM)
Occ. Lymph Nodes
Subclavian Triangle
SCM, Clavicle, Inf. Belly Omohyoid
Subclavian a., Lymph nodes
Muscular Triangle
SCM, Sup. Belly Omohyoid, Midline
Sternothyroid m., Sternohyoid m., Thyroid Gland
Carotid Triangle
SCM, Post. Digrastic, Sup. Belly Omohyoid
Hypoglossal n., Carotid Sheath & contents,
branches of ext. carotid a. heading anteriorly
Submental Triangle
Ant. Digastric m (L & R), Hyoid Bone
Submental Lymph nodes
—> drain central lower lip, central incisors & gingiva, tip of tongue
—> only one that crosses the midline
Submandibular Triangle
Mandible, Post. Digastric, Ant. Digastric
Facial a., Submandibular Gland, Hypoglossal n., Submandibular Lymph Nodes
—> L.N.s drain most of oral cavity
Anterior Longitudinal Ligament becomes…
Anterior Atlanto-Occipital Membrane
Posterior Longitudinal Ligament becomes…
Tectorial Membrane
Ligamentum Flavum becomes…
Posterior Atlanto-Occipital Membrane
Gag Reflex nerves…
Sens = Pharyngeal br. of Glossopharyngeal Motor = Pharyngeal br. of Vagus
Pupilary Reflex…
Sens = Optic Nerve Motor = Oculomotor nerve (III) parasympathetic
Pretracheal Fascia continuous with…
Buccopharyngeal fascia (superiorly)
Prevertebral Fascia continuous with…
Axillary Sheath (inferiorly), Anterior Longitudinal Ligament (superiorly)
—>Forms floor of posterior triangle
Investing Fascia continuous with…
Parotid Fascia (superiorly)
Retropharyngeal space contains…
loose ariolar tissue
allows for ease of mvmt of larynx in swallowing
Retropharyngeal space continuous with…
Mediastinum (inferiorly)
What muscle is attached to the malleus?
Tensor Tympani
What muscle is attached to the stapes?
Stapedius
What does Tensor Tympani do?
dampens mvmt of malleus
What does stapedius do?
dampens vibration of stapes
The 6th pharyngeal arch gives rise to…
The all intrinsic muscles of the larynx except the cricothyroid.
The cricoid, arytenoid, and corniculate cartilage.
The recurrent laryngeal nerve! Vagus nerve.
What ligament limits rotation of the atlanto-occipital joint?
Alar (check) ligament
Contents of Pretrachel fasica?
infrahyoid muscles, thyroid gland, esophagus, trachea
Buccopharyngeal fascia is the…
external epimysium of constrictor muscles (pharynx)
Super.
Superficial cervical fascia contains…
platysma muscle
What ligament maintains articulation btwn dens and anterior arch of atlas?
Transverse (cruciate) ligament of the Atlas
Suboccipital n. (Dorsal C1) innervates…
- Rectus Cap. Post. Maj.
- Rectus Cap. Post. Min.
- Inf. Oblique
- Sup. Oblique
- Semispinalis Cap.
Greater Occipital n. (Dorsal C2) innervates
- Splenius Cap.
- Longissumus Cap.
- Semispinalis Cap. (yes, dual innervation)
Dorsal Ramus C-anything…
Lateral Ramus vs. Medial Ramus
Lateral = Motor (LMN, Sens, PostSymp) Medial = Cutaneous (Sens, PostSymp)
4 muscles innervated by Ansa Cervicalis
Omo-Sup
Omo- Inf
Sternohyoid
Sternothyroid
Tell me about the Pterion…
Spot where 4 bones come together
- the parietal bone
- the squamous part of temporal bone
- the greater wing of sphenoid bone
- the frontal bone
—> Middle Meningeal Artery runs medial to this point.
Superior Oblique eye Movements
- Abduction
- Intorsion
- Depression
Inferior Oblique eye Movements
- Abduction
- Extorsion
- Elevation
What muscle does the greater occipital nerve “pierce”?
Semispinalis Capitus Muscle
Which Nerves contain TASTE?
- Greater Palatine (V max / Facial)
- Lesser Palatine (V max / Facial)
- –> T. really travels back w/ Facial via. N. of the Pt.Canal & then Greater Petrosal N. - Lingual Br. of Mandibular n.
- Lingual Br. of Glossopharyngeal
- Internal Laryngeal (and hence Sup. Laryg of X)
Ventral Ramus C1
Travels with Hypoglossal (XII) briefly
- Geniohyoid m.
- Thyrohyoid m.
Pterygomandibular Raphe
Pt. hamulus to post. mylohyoid line
Att. point of buccinator and sup. constrictor
Stylomandibular ligament
styloid apex to angle of mandible
Sphenomandibular ligament
spine of sphenoid bone to lingula on mandible
landmark for inf. alveolar block
Maintains axis of the joint so inf. alveolar n., a., v. pass smoothly past lingula into mandibular foramen.
Upper TMJ compartment
Gliding (plane) synovial
Lower TMJ compartment
HInge synovial
Atlanto-Occipital joint
synovial - ellipsoidal
Medial Atlanto-Axial joint
synovial - pivot
Lateral Atlanto-Axial joints
synovial - plane (gliding)
Zygapophysial joint (facet)
synovial - plane (gliding)
Upper Elastic Posterior Lamina…
The “ligament” that attaches the TMJ joint to the squamotypmanic fissure
Long Buccal n. passes …
between the two heads of the lateral pterygoid muscle
action of the lateral pterygoid muscle?
protrusion of the jaw
grinding of the jaw
