Spread of infection in fascial spaces of neck

Which muscle is innervated by a branch of the ansa cervicalis?

The layer of encircling cervical fascia that splits to enclose sternocleidomastoid and trapezius muscles is the:

One of the motor components of the cervical plexus, the ansa cervicalis, innervates all of the following muscles except the:

These structures are all located in the superficial fascia of the neck EXCEPT

What space does not involve the entire length of neck?

The alar fascia is in what relation to the danger space?

Infection of the peritonsillar space can extend into what other space?

Involvement of this space must be suspected when the patient presents with trismus.

What fascial layer was dubbed the ‘Lincoln highway’?

What layer of the deep cervical fascia contains the danger space?