0
In the Jaw Thrust maneuver, the head is tilted back in order to facilitate opening the airway. The Modified Jaw Thrust is similar except there is no tilting of the head back. The rescuer/clinician should attempt to anteriorly position the lower jaw without moving the rest of the head. One should use the Modified Jaw Thrust in cases where a cervical spine injury is suspected.
Still curious? Ask our experts.
Chat with our AI personalities
Taiga
Rene
RossAdd your answer:
Earn +20 pts
Where is the maxilla located?
The maxilla forms the upper jaw. See the related link for more information.
What is the most primitive class of fish called?
Agnatha is a superclass of fish that are characterised by their lack of a jaw as opposed to the presence of a jaw found in most modern fish. The surviving two classes are hagfish and lampreys.
Discuss the evolutionary significance of the development of the jaw?
Until now, it was unclear as to which genes control differences between the upper and lower jaw of the vertebrate head. Jawed vertebrates evolved from jawless ancest ors over 400 million years ago, and the evolution of a biting lower jaw was a critical step in vertebrate evolution. Comparative studies of vertebrate embryos suggest that lower jaws arose during evolution through changes in patterning along the proximodistal (PD) axis of the jaw as it forms.The jaw is one of a series of segmental reiterated structures called pharyngeal arches, and its PD axis, like appendages such as limbs, extends from the base of the arch to its tip. How this axis is established is still debated, but like limbs it clearly involves Dlx homeobox transcription factors related to distalless, a key regulator of appendage development in Drosophila.
Why is diastema important for herbivores?
It would allow food to be pushed between the upper and lower jaw through the gap, to be stored briefly in the cheek. Thus it is possible for the animal to eat more food without stopping to chew and swallow each mouthful.
If you cover your ears and hum what is the sound travelling through?
Your jaw bones. Then up through the anvils and stirrups to your eardrums.
