Flashcards in 18 - Neck & Cervical Plexus Deck (95)
The first two cervical vertebrae are specialized as the ______ and ______.
Cervical segments are the only ones with a _________ ________ (i.e., spinal roots of CN XI).
What are 3 similarities between trunk and neck?
1) Both have vertebrae
2) Both have mixed spinal nerves
3) Both have separate epaxial and hypaxial muscle masses
The smooth muscles of the trunk gut are derived from ________ _______.
The gut tube in the neck is surrounded by striated branchial arch muscles, which are muscles of the _______ and _______. These muscles are derived from _______ _______ _______.
Posterior pharyngeal arches
Superficial striated muscles of neck form an incomplete layer, which are the ________ and ________ muscles. These are derived from ______ ______ ______.
Gill arch levators
The (NECK/TRUNK) lacks a coelom.
Hypaxial muscles in neck are innervated by what?
Ventral rami of spinal nerves
These are hypaxial muscles within the rectus cervicis series (rectus abdominis equivalents). The ones that lie deep are ________ and ________, and the ones that are superficial are the ________ and ________.
The muscles in the rectus cervicis series are also called the ________ muscles.
This hypaxial muscle of the neck forms the incomplete floor of the mouth.
These hypaxial muscles of the neck are the _______ muscles, which are the intercostal muscle/abdominal oblique equivalents).
This scalene muscle goes from the transverse processes of C3-C6 to the first rib.
This scalene muscle goes from the transverse processes of C5-C7 to the first rib.
This scalene muscle goes from the transverse processes of C5-C7 to the second rib.
This hypaxial muscle of the neck goes from the upper three or four cervical transverse processes to the upper medial corner of the scapula.
These hypaxial muscles of the neck are prevertebral muscles (no equivalents elsewhere in the body). The lateral and anterior intertransversarri consist of...
Rectus capitis lateralis
Rectus capitis anterior
These hypaxial muscles of the neck are prevertebral muscles (no equivalents elsewhere in the body). The longer prevertebral muscles consist of...
The prevertebral fascia covers the muscular floor (hypaxial muscles of neck) consisting of...
What is the superior border of the anterior triangle of the neck?
What is the posterior border of the anterior triangle of the neck?
Sternocleidomastoid (anterior border of)
What is the anterior border of the anterior triangle of the neck?
Midline of the neck
What are the subdivisions of the anterior triangle of the neck?
This is a component of the muscular triangle made up of two in-line bellies, anterior and posterior.
The digastric (muscular triangle) is innervated by two different cranial nerves based on embryological origin from two different ________ ________.
Pharyngeal arches (I and II)
What is the origin of the anterior belly of the digastric?
Digastric fossa of mandible
What is the insertion of the anterior belly of the digastric?
Posterior belly via intermediate tendon of hyoid bone
What actions does the anterior belly of the digastric perform?
Elevate hyoid and tongue
What innervates the anterior belly of the digastric?
Mylohyoid nerve (branch of CN V3 - mandibular nerve)