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SSN ANATOMY
Workshop 5: Head & Neck I
Superficial Head & Neck: The beginnings…
1. What are the layers of the scalp?
S
C
A
L
P
2. CRANIAL FOSSAE!
Foramen
Olfactory Foramina
Location
Ethmoid Bone
Contents
Foramen Cecum
Optic Canal
btw ethmoid and frontal bones
Sphenoid bone
-
-
-
Superior Orbital Fissure
Sphenoid bone
-
Foramen Rotundum
Foramen Ovale
Foramen Spinosum
Foramen Lacerum
Sphenoid bone
Sphenoid bone
Sphenoid bone
btw Sphenoid and temporal b.
-
Hiatus of Facial Canal
Internal Auditory Meatus
Temporal bone
Temporal bone
-
Jugular foramen
btw Temporal and occipial b.
-
Hypoglossal Canal
Occipital bone
-
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3. CSF! Please label the following, and trace the path of CSF through the ventricular system
and then the path of fluid in the venous system.
Straight Sinus
Superior Sagittal Sinus
Transverse Sinus
Lateral Ventricle
Third Ventricle
Fourth Ventricle
Aqueduct of Sylvius
Foramen of Monro
VENTRICULAR DRAINAGE:
VENOUS DRAINAGE:
2
Foramen of Magendie
Subarachnoid Space
Arachnoid Villi
Choroid Plexus
4. CRANIAL NERVES: Start learning this NOW!
Name
I
Motor/Sensory Function
Foramen
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
Mnemonics:
“Oh, Oh, Oh, To Touch And Feel Virgin Girls Vaginas And Hymens”
(G-rated version):“Oh Once One Takes The Anatomy Final A Good Vacation Seems Heavenly”
“Some Say Marry Money But My Brother Says Big Boobs Matter More”
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5. CRANIAL NERVES: A Developmental Approach
Branchial Arch Derivatives (the cranial nerves that have both sensory and motor functions.)
Branchiomeric nerves: have
Pretrematic branches : Sensory , Motor or Both?
Post-trematic branches: Sensory, Motor or Both ?
Branchial Arch Bone
First Arch
- Mandible
- Sphenomandibular lig.
- Malleus
- Incus
Second
Arch
- Hyoid
lesser horn
ligament
- Styloid process
- Stapes
- Hyoid body and
greater horn
- Stylohyoid
Third Arch
Fourth Arch
- Laryngeal
Cartilages
Muscle
- Mm of mastication
- Tensor tympani m.
- Tensor palatini m.
- Mylohyoid m.
- Digastric (ant. belly)
- Mm of facial expr.
- Stylohyoid m.
- Digastric (post. belly)
- Stapedius m.
- Stylopharyngeus m.
- Pharyngeal
mm.
m.
- Cricothyroid
Sixth Arch
- Laryngeal
Cartilages
- Laryngeal
6. HEMATOMAS!
Subdural:
Cause:
Symptoms:
Epidural:
Cause:
Symptoms:
Subarachnoid:
Cause:
Symptoms:
4
mm.
Innervation (Pre and Post)
CN:
Pre:
Post:
CN:
Pre:
Post:
CN:
Pre:
Post:
CN:
Pre:
Post:
CN:
Pre: ???
Post:
7. EXTRAOCULAR MUSCLES!
(What do they do to the eyeball? And what is the innervation?.)
Muscle
Primary Action
Secondary Action
Innervation
(Normally canceled out)
Superior Rectus
Inferior Oblique
Inferior Rectus
Superior Oblique
Medial Rectus
Lateral Rectus
Levator Palpebrae Superioris
8. Cervical Plexus! Please label the following:
CN XII
Mm of Tongue
Supraclavicular N.
Sternothyroid m.
Lesser Occipital N.
Omohyoid m.
Phrenic N.
Sternohyoid m.
Transverse Cervical N.
Trapezius m.
C1
C2
C3
C4
C5
6
5
SCM m.
Ansa Cervicalis
Geniohyoid /Thyrohyoid Mm.