spinal anatomy sample questions Flashcards
Which structure develops from the first pharyngeal arch?
a. stylopharyngeus muscle
b. tensor tympanic muscle
c. temporal bone
d. hyoid bone
b. tensor tympanic muscle
muscle within the ear above the auditory tube; dampens sounds
which muscle inserts into the fibrocartilaginous disc of the temporomandibular joint?
a. masseter
b. lateral pterygoid
c. medial pterygoid
d. temporalis
b. lateral pterygoid
the superior head inserts into the disc of the TMJ joint
the inferior head inserts onto the neck of the condyloid process of the mandible
Fibers of the trapezius muscle insert onto the _____
a. lateral surface of the mastoid
b. transverse process of cervical vertebrae
c. inferior angle of the scapula
d. lateral third of the clavicle
d. lateral third of the clavicle
the superior fibers insert into the lateral 3rd of the clavicle
the anterior belly of the digastric muscle receives motor supply from the ____ nerve.
a. nasopalatine
b. mylohyoid
c. hypoglossal
d. accessory
b. mylohyoid
anterior belly is supplied by the trigeminal via the mylohyoid nerve, a branch of the inferior alveolar nerve, itself a branch of the mandibular division of the trigeminal nerve. It originates from the first pharyngeal arch.
which muscle originates on the angles of the lower 6 ribs and inserts on the angles of the upper 6 ribs?
a. semispinalis thoracis
b. iliocostalis thoracis
c. longissimus thoracis
d. spinalis thoracis
b. iliocostalis thoracis
which of these thoracic wall muscles is not innervated by the intercostal nerve?
a. subcostal
b. levator costarum
c. internal intercostal
d. external intercostal
b. levator costarum
the diaphragm is derived from the myotomes of which vertebral segments?
a. C3-C5
b. C6-7
c. T1-T3
d. T9-T10
a. C3-C5
because the phrenic nerve innervates the diaphragm, the earliest development originates from C3-C5
The atlanto-axial joint is a ______ joint.
a. ellipsoidal
b. pivot
c. condyloid
d. sellar
b. pivot
The acromioclavicular joint is a _____ joint.
a. bicondylar
b. saddle
c. hinge
d. plane
d. plane
plane/ gliding joint
The interspinous ligaments are thickest in which region of the spine?
a. cervical
b. thoracic
c. lumbar
d. sacral
c. lumbar
which ligament covers the interosseous sacroiliac ligament?
a. anterior longitudinal
b. flaval
c. iliolumbar
d. posterior sacroiliac
d. posterior sacroiliac ligament
Calcification of the ____ forms a posterior ponticle.
a. dentate ligament
b. transforaminal ligament
c. posterior atlanto-occipital ligament
d. anterior atlanto-occipital ligament
c. posterior atlanto-occipital ligament
What maintains the normal thoracic curve?
a. superior articular facet
b. slightly wedge-shaped vertebral bodies
c. inferior articular facet orientation
d. angulation of spinous processes
b. slightly wedge-shaped vertebral bodies?
I am not 100% on this one
the normal coupled motion of the midcervical vertebrae is lateral flexion with ____ of the vertebral bodies.
a. ipsilateral rotation
b. flexion
c. extension
d. contralateral flexion
a. ipsilateral rotation
The foramen rotundum connects the middle cranial fossa with the _____.
a. orbital cavity
b. infratemporal fossa
c. temporal fossa
d. pterygopalatine fossa
d. pterygopalatine fossa
The transverse ridges of the sacrum are remnants of _____.
a. transverse processes
b. intervertebral discs
c. vertebral bodies
d. spinous processes
b. intervertebral discs