Anatomic Science Quiz 11

Cervical Vertebral Articulation Lacking an Intervertebral Disc

Which articulation of the cervical vertebrae does NOT contain an intervertebral disk?

Origin of the Spinal Accessory Nerve Motor Rootlets

The spinal accessory nerve (CN XI) is composed of motor rootlets from which of the following cervical nerve levels?

Arteries Branching from the Subclavian Artery

Each of the following arteries is a branch of the subclavian artery EXCEPT:

Formation of the External Jugular Vein

The external jugular vein is formed by the communication between which two veins?

Origin of the Stylomandibular Ligament

The stylomandibular ligament has its origin at which bony structure?

Unpaired Cranial Bones

Each of the following bones is typically considered an unpaired, singular bone of the cranium EXCEPT:

Attachment of the Mylohyoid Muscle

Which statement correctly describes the attachment of the mylohyoid muscle?

Innervation of the Anterior Belly of the Digastric Muscle

Which nerve, a branch of CN V3, innervates the anterior belly of the digastric muscle?

Innervation of the Infrahyoid Musculature

The infrahyoid musculature of the neck (omohyoid, sternohyoid, sternothyroid) receives motor innervation from:

Branch of the Internal Carotid Artery (Head and Neck)

All of the following are branches of the external carotid artery EXCEPT:

Location of the Crista Galli

The crista galli is a superior projection of which bone, located in the midline of the cranium?

Initial Dentin Layer Penetrated in a Crown Preparation

When cutting through enamel and into dentin during a crown preparation, which structure is first penetrated in the dentin layer?

Location of Raschkow (Parietal) Plexus

Raschkow (parietal) plexus, which includes vasculature, is located in which region of the dental pulp?

Analogous Cells: Stratum Basale of Skin and Spermatogenesis

Which structure of sperm development is analogous to the stratum basale of the skin, being the least differentiated, most immature cellular layer?

Location of the Macula Densa

The macula densa, part of the juxtaglomerular apparatus that monitors fluid concentration, is located in which portion of the kidney nephron?

Maxillary Root Most Likely Dislodged into the Maxillary Sinus

Which root of the maxillary dentition has the highest probability of fracturing and becoming dislodged into the maxillary sinus?

Articulations of the Zygoma

The zygoma articulates with all of the following bones EXCEPT:

Direction of Mandibular Condyle Displacement in Luxation

Luxation of the mandible occurs when the condyles translate over the articular eminence. In which direction are the mandibular condyles most likely displaced?

Direct Branching Origin of the Inferior Alveolar Artery (IAA)

The inferior alveolar artery (IAA) is a DIRECT branch from which of the following arteries?

Site of Bile Production

Bile, which is transported and stored in the gall bladder, is produced by which organ?