H&N PART 1 Flashcards
Common type of joint found in the skull?
Suture joint
Sutures of the skull
Type of fibrous joint
SAGITTAL: frontal-parietal
CORONAL: parietal-parietal
LAMBDOID: occipital-parietal
Which fontanelle closes first?
1) posterior fontanelle generally closes 2-3 months after birth,
2) anterior fontanelle closes last ~31mos
bony prominences of the skull
OCCIPITAL PROTUBERANCE
MASTOID PROCESS
ZYGOMATIC ARCH
STYLOID PROCESS
OCCIPITAL CONDYLES
WHAT BONE makes up the middle cranial fossa
Sphenoid bone
Ear Ossicles
malleus
incus
stapes
Superficial temporal artery
found anterior to the tragus of the ear
terminal brance of the ECA within the parotid gland
What passes through the stylomastoid foramen
petrous temporal bone, between the base of the styloid process and the mastoid process of the temporal bone. It transmits the facial nerve and stylomastoid artery
Boundaries of the anterior cranial fossa
posteriorly: greater wing of sphenoid
posterior boundaries of the middle cranial fossa
formed by the petrous part of the temporal bone
structures passing through the parotid gland
CN VII
ECA producing:
- posterior auricular artery
- final brances: maxillary artery and super. temporal art.
RETROMANDIBULAR NERVE:
(super temp. vein + maxillary vein)
what vertebral level does the CCA bifurcates
@ C4-C5 within the anterior triangle
upper border o the thyroid cartilage
What is the cervical plexus
Found @ floor of posterior triangle
composed of ventral rami of lower cervical nerves emerging between scalene muscles
= gives off phrenic
Neck compartments
VISCERAL COMPARTMENT
VASCULAR COMPARTMENT
VERTEBRAL COMPARTMENT
MUSCULOFASCIAL COLLAR
What travels in the carotid sheath
CCA, IJV, CN X
what superficial vein drains the scalp and face?
the external jugular vein ( retromandibular vein and posterior auricular vein in parotid)
which drain into subclavian vein
Vertebral roots of cervical plexus
C1-C4
Root value of brachial plexus
C5-C8, T1
what level (in relation to the trachea or larynx) does the isthmus of the thyroid gland lie
C7-T1
PHARYNX SECTIONS
NASOPHARYNX: behind nasal fossae above soft palate
OROPHARYNX: behind anterior pillars of the fauces
LARYNGOPHARYNX: behind larynx
What forms the roof of the nose?
Nasal bone, frontal, ethmoid: cribiform plate , and sphenoid body.
What forms the floor of the nasal cavity?
Palatine process of maxillae and palatine bones = hard palate
What passes through the cribiform plate and attachments?
Olfactory nerve
+
Falx cerebri
What is the name given to the space above the superior concha?
Fovea ethmoidalis
