Term
What are the walls, floors and ceiling of the nasal cavities made out of? |
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Definition
bone and cartilage that is continuous with the nasal sinuses |
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Term
What separates the nasal and oral cavities? |
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Definition
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Term
What is the nerve of all mastication processes? |
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Definition
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Term
What is the of all facial muscles? |
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Definition
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Term
Where is the infratemporal fossa and what passes through it? |
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Definition
bw posterior mandible and lateral pterygoid process -CN5 |
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Term
Where is the pterygopalatine fossa and what passes through it? |
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Definition
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Term
Where does the dentist put numbing shots? |
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Definition
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Term
What do the orbicularis oculi do? orbicularis oris? |
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Definition
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Term
What is a righting reflex? |
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Definition
positioning of the head in reaction to environment relative to the body |
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Term
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Definition
-upper part of the cranium -including temporal, parietal, frontal, sphenoid, ethmoid and occipital |
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Term
What is the facial skeleton? |
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Definition
-lower part of the cranium -includes nasal bones: palatine, lacrimal, zygomatic, maxillae, inferior nasal conchae and vomer. |
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Term
Where are the crista galla? |
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Definition
sticks out of ethmoid bone |
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Term
Which nasal concha can you feel? What do the concha do? |
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Definition
inferior warm air that come into the noseW |
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Term
What goes through the foramen spinosum? |
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Definition
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Term
What goes through the foramen lacerum? |
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Definition
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Term
What goes through the foramen ovale? |
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Definition
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Term
What goes through the carotid foramen/canal? |
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Definition
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Term
What goes through the stylomastoid foramen? |
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Definition
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Term
What goes through the jugular foramen? |
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Definition
jugular vein, right behind carotids |
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Term
What are the pterygoid processes attachments for? |
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Definition
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Term
What holds the sphenoid bone? |
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Definition
-sella turcica holds pituitary gland -optic foramen -lesser and greater wings |
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Term
What processes attach to the temporal bone? |
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Definition
temporal squama zygomatic process forms part of arch external auditory meatus mastoid process styloid process stylomastoid foramen(VII) mandibular fossa (TMJ) petrous portion (VIII) |
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Term
What are the foramen of the temporal bone? |
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Definition
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Term
What are some features of the occipital bone? |
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Definition
-foramen magnum -occipital condyles -external occipital protuberance attachment for ligamentum nuchae -superior & inferior nuchal lines |
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Term
Describe the maxillary process of the zygomatic bone. |
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Definition
extends anteromedial to articulate with the zygomatic process of the maxilla |
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Term
describe the frontal process of the zygomatic bone. |
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Definition
extends superiorly to articulate with the zygomatic process of the frontal bone |
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Term
Describe the temporal process of the zygomatic bone. |
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Definition
extends posteriorly to articulate with the zygomatic process of the temporal bone |
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Term
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Definition
Has a body, angle and ramus: -ramus is quadrangular with medial and lateral surfaces and condylar and coronoid processes *lateral surface is attachment for masseter muscle -alveolar process is where teeth attach -mandibular and mental foramen |
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Term
What are the 4 movements of the mandible? |
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Definition
protrusion retraction elevation depression |
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Term
Which muscles articulate to cause protrusion? |
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Definition
lateral pterygoid with medial pterygoid |
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Term
Which muscles articulate to cause retraction? |
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Definition
posterior fibers of temporalis, deep part of massester, and geniohyoid and digastric |
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Term
Which muscles articulate to cause elevation? |
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Definition
temporalis masseter medial pterygoid |
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Term
Which muscles articulate to cause depression? |
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Definition
*gravity digastriv geniohyoid mylohyoid |
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Term
What composes the maxillae? |
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Definition
upper jaw infra orbital foramen alveolar processes on top |
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Term
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Definition
dense CT membrane filled spaces bw cranial bones of fetuses and infants -major fontanels: anteriorm posterior, anterolaterals, and posterolaterals |
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Term
What are the 2 fxns of fontanels? |
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Definition
-fit through birth canal -rapid growth of brain during infancy |
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Term
What foramen are in the cribiform plates on either side of the crista galli? |
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Definition
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Term
What are the layers from external to internal of the SCALP? |
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Definition
Skin CT Aponeurotic layer Loose CT Pericranium |
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Term
What is the innervation of the scalp? |
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Definition
front part (ant to ears)- Trigeminal nerve (CNV) posterior to ears- C2, C3 & C5 |
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Term
Scalp has a very rich blood supply? |
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Definition
branches of external carotid and opthalmic artery (which is of internal carotid) |
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Term
What is internal carotid concerned with supplying? |
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Definition
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Term
Which veins drain the scalp? |
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Definition
temporal vein (lateral scalp) auricular vein (of ear) occipital vein (posterior) |
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Term
What is the lymphatic drainage of the head and neck? |
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Definition
posterior of ear- to mastoid nodes anterior to ears- to parotid nodes |
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Term
What if lymph nodes are swollen and they hurt? don't hurt? |
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Definition
-infection -lymphacytic cancer |
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Term
What are the bones of the orbit? |
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Definition
frontal maxilla zygomatic zygomatic process of frontal bone |
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Term
What is the roof of the orbit? |
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Definition
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Term
What is the medial wall of orbit? |
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Definition
maxilla, lacrimal, ethmoid and sphenoid |
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Term
What are the layers of the eyelid from anterior to posterior? |
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Definition
skin subcutaneous tissue voluntary muscle -ORBICULARIS OCULI (CNVII) closes the eyelids Tarsus Lavator palpebrae superioris -if problem here-ptosis (CNIII) Conjunctiva |
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Term
What is the condition where you cannot close you orbicularis oculi? |
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Definition
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Term
Where does the conjunctiva stop lining the eyelid? |
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Definition
when it hits corneal edge is reflecte on anterior surface of eyelid |
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Term
What is found at the base of eyelashes? |
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Definition
sebaceous glands -if get stopped up, get a sty |
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Term
What is the gap bw the eyelids? |
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Definition
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Term
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Definition
batericidal NZ called lysozyme -produce 1 ml of tears per day -spread over eyes by blinking |
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Term
What does the fascial sheath of the eyeball connect to? |
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Definition
-posteriorly to sclera at optic nerve entrance -anteriorly to sclera -blends with eye muscles -suspensroy ligament |
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Term
What does he suspensroy ligament contribute to? |
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Definition
helps hold eye in place on either side -fascia and muscles contribute to this. |
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Term
What is the external ear for? |
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Definition
collection of sound. -ceruminous glands here in the external auditory canal |
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Term
What window is the stapedes connected to in the ear? malleus attachment? |
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Definition
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Term
What does the auditory tube drain into? |
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Definition
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Term
if give heavy doses of AB, gentomyocin what happens? |
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Definition
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Term
What CN innervates the stapedius? TENSOR TYMPANI? (both muscles to ossicles) |
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Definition
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Term
What motions do the semicircular canals predict? utricle and saccule? |
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Definition
-ya, pitch and roll -linear motion |
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Term
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Definition
-series of cavities in petrous portion of temporal bone -divided into three areas -semicircular canals (equilibirum receptors) -vestibule (equlibrium receptors) -cochlea (hearing receptors) -lined with perilymph (similar to CSF) -surrounds membranous labyrinth (surrounded by bony labyrinth) |
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Term
What are the contents of the infratemporal fossa? |
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Definition
-sphenomandibular ligament -medial and lateral pterygoid muscles -maxillary artery -CN V -Branches of facial nerve CN VII -Glossopharyngeal nerve (CN IX) |
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Term
What do parotid glands secerte? what is this innervation? what process does this start? |
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Definition
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Term
What is the biggest branch of the external carotid? |
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Definition
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Term
What are some examples of intracranial hemorrhages? |
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Definition
-extradural -subdural -subarachnoid |
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Term
What are the causes of an extradural hemorrhage? |
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Definition
tearing of branches of middle meningeal artery -typical is blow to the head -pt has a lucid interval and temp loss of consciousness |
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Term
What are the causes of the subarachnoid hemorrhage? |
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Definition
ruptured intracerebral aneurysm |
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Term
What are general causes of intracerebral hemorrhages? |
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Definition
primary aneurysm, hypertension, and bleeding after cerebral infarction |
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Term
What does the Glasgow coma scale measure? What is the difference bw decorticate and deceberate posture? |
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Definition
alert patients and those in coma. (0-15, 0 is death) -arms flexed up -arms extended back (pt is getting worse) |
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Term
What are the 3 treatments of head injury? |
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Definition
-prevent swelling -IV corticosteroids -surgical removal |
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Term
What are the compartments of the neck? |
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Definition
vertebral compartment visceral compartment -thyroid, parathyroid, thymus, resp and digestive tracts. vascular compartment -blood vessels and vagus nerve |
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Term
What are the contents of the anterior triangle of the neck? |
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Definition
Sternocleidomastoid muscle, inferior border of the mandible and midline of the neck -strap muscles |
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Term
What is found on the posterior triangle of the neck? |
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Definition
Posterior border of the sternocleidomastoid muscle, anterior border of the trapezius middle 1/3 of the clavicle |
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Term
What are key features located at CIII & IV? |
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Definition
-thyroid cartilage -bifurcation point of carotids to internal and external carotid arteries |
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Term
What are the key features of CV & CVI? |
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Definition
-lower limit of pharynx and larnynx -superior limit of trachea and esophagus |
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Term
What parasympathetic fibers in the head are carried out of the brain via what CNs? |
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Definition
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Term
Which preganglionic parasympathetic fibers are distributed with trigeminal nerve? |
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Definition
oculomotor, glossopharyngeal, and facial |
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Term
What constitutes the cervical plexus, and what do they innervate? |
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Definition
C1-4 -STRAP MUSCLES -diaphragm -skin on anterior and lateral parts of neck -skin on upper ant. thoracic wall -skin on inferior parts of the head. |
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Term
How can the lower airway be accessed? digestive tract? |
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Definition
-through oral cavity by intubation -through nasal cavity by a feeding tube |
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Term
What are valves that prevent food and liquid from entering lower part of resp tract? |
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Definition
epiglottis and soft palate |
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Term
What can babies do all at the same time? why? |
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Definition
-can suckle, swallow and breathe. -larynx is higher in their neck |
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Term
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Definition
superficial fascua thin sheet of muscle -grimacing muscle. |
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Term
What are the 4 layers of deep cervical fascia? |
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Definition
investing prevertebral pretracheal carotid sheaths |
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Term
What does the investing layer surround? |
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Definition
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Term
What does the prevertebral layer surround? |
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Definition
vert column and deep muscles of back |
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Term
What does the pretracheal layer enclose? |
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Definition
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Term
what do the carotid sheaths surround? |
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Definition
-2 major neurovascular bundles on either side of neck |
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