Missed Questions - Anat 96'

Front 1

Parasympathetic innervation controlling salivation originates with which of the following cranial nerves?

V, VII, IX, X, and XII
V, VII, IX, and X
V, IX, and X
VII, IX, and XI
VII and IX

Back 1

VII and IX

Front 2

The dentist incises the mucous membrane of the floor of the mouth. This incision extends from the molar region to the sublingual caruncle (papilla). Which of the following structural groups will be exposed first?

Sublingual gland, lingual nerves, and submandibular duct
Hyoglossus and mylohyoid muscles, and hypoglossal nerve
Lingual nerve, lingual artery, and anterior belly of the digastric muscle
Lingual nerve, hypoglossal nerve, and submental branch of the facial artery
Anterior belly of the digastric muscle, mylohyoid nerve, and submental branch of the facial artery

Back 2

Sublingual gland, lingual nerves, and submandibular duct

Front 3

As the subclavian vein crosses the first rib, it lies

anterior to the anterior scalene muscle.
posterior to the anterior scalene muscle.
posterior to the posterior scalene muscle.
between the anterior and the posterior scalene muscles.
between the scalene posterior and the levator scapulae muscles

Back 3

anterior to the anterior scalene muscle.

Front 4

Which of the following BEST describes the passage of material through the hepatic sinusoids?

Blood passes toward the central vein.
Bile passes peripherally toward the portal canal.
Lymph moves centrally to join the sublobular duct.
Lymph moves peripherally toward the space of Disse.
Blood passes peripherally away from the central vein.

Back 4

Blood passes toward the central vein.

Front 5

During an intraoral injection to the mandibular foramen, the needle passes through the mucous membrane and the buccinator muscle. As it does so, the needle lies

inferior to the mandibular lingula.
superior to the auriculotemporal nerve.
lateral to the neck of the mandible.
lateral to the medial pterygoid muscle.
lateral to the stylomandibular ligament.

Back 5

lateral to the medial pterygoid muscle.

Front 6

Which of the following nerves is the MOST likely to become injured in fractures of the mid-humeral shaft?

Ulnar
Radial
Median
Axillary
Musculocutaneous

Back 6

Radial

Front 7

The superior and inferior ophthalmic veins drain directly or indirectly into the

frontal vein.
cavernous sinus.
anterior facial vein.
internal jugular vein.
superior petrosal sinus

Back 7

cavernous sinus.

Front 8

Each of the following muscles receives motor innervation from the ansacervicalis EXCEPT one. Which one is this EXCEPTION?

Omohyoid
Thyrohyoid
Geniohyoid
Sternohyoid
Sternothyroid

Back 8

Geniohyoid

Front 9

Which of the following structures leaves an impression on the right lung?

Azygos vein
Right vagus nerve
Right phrenic nerve
Descending thoracic aorta
Right common carotid artery

Back 9

Azygos vein

Front 10

Tendons are comprised of which of the following types of collagenous connective tissue?

Areolar
Reticular
Dense regular
Dense irregular

Back 10

Dense regular

Front 11

Which of the following nerves innervates the trapezius muscle?

Radial
Axillary
Accessory
Thoracodorsal
Long thoracic

Back 11

Accessory

Front 12

The lateral pterygoid muscle inserts into which of the following?

Condylar process only
Medial aspect of the mandibular ramus
Articular disk of the temporomandibular joint only
Articular disk of the temporomandibular joint and neck of the mandible
Articular disk of the temporomandibular joint and coronoid process

Back 12

Articular disk of the temporomandibular joint and neck of the mandible

Front 13

Each of the following structures is an opening into the pterygopalatine fossa EXCEPT one. Which one is this EXCEPTION?

Facial canal
Pterygoid canal
Pharyngeal canal
Sphenopalatine foramen
Pterygomaxillary fissure

Back 13

Facial canal

Front 14

Which of the following explains why the Barr body found in certain epithelial cells is significant?

It suggests mitotic activity.
It indicates protein synthesis.
It indicates a metaplasmic change.
It is a symptom of nuclear disintegration.
It assists in differentiating between the sexes

Back 14

It assists in differentiating between the sexes

Front 15

The lymph vessels that drain both dental arches connect directly with which of the following nodes?

Submandibular
Deep cervical
Sublingual
Retropharyngeal
Superficial cervical

Back 15

Submandibular

Front 16

Some medications can be absorbed through the mucosa of the tongue's ventral surface and through the mucosa of the floor of the mouth. This absorption can take place in these areas because the mucosa is

covered by pseudostratified squamous epithelium.
covered by simple squamous epithelium with a vascular lamina propria.
covered by thin nonkeratinized stratified squamous epithelium with a thin lamina propria.
covered by keratinized stratified squamous epithelium that contains numerous capillaries.
pierced by the ducts of numerous minor salivary glands through which some types of medication are easily absorbed.

Back 16

covered by thin nonkeratinized stratified squamous epithelium with a thin lamina propria.

Front 17

The vertebral artery is a branch of the

brachiocephalic artery.
external carotid artery.
internal carotid artery,
subclavian artery.
thyrocervical trunk.

Back 17

subclavian artery.

Front 18

The muscle that is the prime mover in left lateral excursion is the

right masseter.
left medial pterygoid.
right medial pterygoid.
left lateral pterygoid.
right lateral pterygoid.

Back 18

right lateral pterygoid.

Front 19

Each of the following structures lies between the hyoglossus and the mylohyoid muscles EXCEPT one. Which one is this EXCEPTION?

Lingual nerve
Lingual artery
Sublingual gland
Submandibular duct
Hypoglossal nerve

Back 19

Lingual artery

Front 20

Which of the following cranial nerves contain parasympathetic preganglionic fibers?

II, III, IV, and V
III, IV, V, and VI
III, V, VII, and IX
III, VII, IX, and X
VII, IX, X, and XI

Back 20

III, VII, IX, and X

Front 21

The core of a cilium is composed of

microvilli.
microtubules.
microfibrils.
tonofilaments.
microfilaments.

Back 21

microtubules

Front 22

Each of the following enters the orbit by way of the superior orbital fissure EXCEPT one. Which one is this EXCEPTION?

Abducens nerve
Trochlear nerve
Oculomotor nerve
Ophthalmic artery
Ophthalmic division of the trigeminal nerve

Back 22

Ophthalmic artery

Front 23

The capacity of the tongue for forceful movement depends on striated muscle supplied by which of the following cranial nerves?

V
VII
IX
X
XII

Back 23

XII

Front 24

Enlargement of the third ventricle and both lateral ventricles is caused by obstruction of the

cerebral aqueduct.
foramen of Magendie.
foramina of Luschka.
interventricular foramina of Monro

Back 24

cerebral aqueduct.

Front 25

Melanocytes are derived from which of the following?

Ectoderm
Endoderm
Mesoderm
Dermatomes
Neural crest

Back 25

Neural crest

Front 26

Cementum differs from dentin in that cementum

contains more inorganic material than dentin.
is not formed following eruption of the tooth.
can contain cells, whereas dentin contains cells as well as cell processes.
is produced by cells of the periodontal ligament, but dentin is produced by pulp cells.
contains some elastic fibers, whereas dentin contains only collagenous fibers.

Back 26

is produced by cells of the periodontal ligament, but dentin is produced by pulp cells.

Front 27

Highly skilled, discrete motor activity of the hand is dependent on which of the following cortical areas of the hemisphere?

Transverse temporal gyrus
Angular gyrus of the parietal lobe
Precentral gyrus of the frontal lobe
Paracentral lobule on the medial surface

Back 27

Precentral gyrus of the frontal lobe

Front 28

Compared with intertubular dentin, peritubular dentin is characterized by which of the following?

Greater stainability
Higher quantity of fluids
Lesser content of inorganic salts
Greater content of inorganic salts
Greater content of large collagen fibers

Back 28

Greater content of inorganic salts

Front 29

Which of the following represents the location of the cell bodies of pain fibers in the glossopharyngeal nerve?

Otic ganglion
Nucleus ambiguus
Trigeminal (semilunar) ganglion
Spinal nucleus of cranial nerve V
Superior ganglion of cranial nerve IX

Back 29

Superior ganglion of cranial nerve IX

Front 30

The lingula of the mandible serves as an attachment for which of the following?

Temporalis
Stylomandibular ligament
Sphenomandibular ligament
Temporomandibular ligament
Tendon of the digastric muscle

Back 30

Sphenomandibular ligament

Front 31

In the developing embryo the palate is separated from the lip by a shallow sulcus in the depths of which two epithelial laminae arise. The outer lamina is the

dental lamina for primary teeth.
dental lamina for permanent teeth.
primordium of the parotid gland.
primordium of the buccal frenula.
vestibular lamina.

Back 31

vestibular lamina.

Front 32

Which of the following is derived from ectomesenchyme?

Ameloblasts
Odontoblasts
Stellate reticulum
Stratum intermedium
Reduced enamel epithelium

Back 32

Odontoblasts

Front 33

Each of the following embryologic structures is derived from the first branchial arch EXCEPT one. Which one is this EXCEPTION?

Tuberculum impar
Maxillary process
Mandibular process
lntermaxillary process
Lateral lingual swelling

Back 33

lntermaxillary process

Front 34

Salivary gland striated ducts are composed of which of the following types of epithelium?

Simple squamous
Simple cuboidal
Stratified squamous
Simple low columnular
Psuedostratified ciliated columnar

Back 34

Simple low columnular

Front 35

Which of the following muscles insert(s) onto the neck of the condyle?

Masseter
Temporalis
Lateral pterygoid
Medial pterygoid

Back 35

Lateral pterygoid

Front 36

Which of the following are pure serous glands?

Sublingual glands
Glands of Brunner
Submandibular glands
Glands of von Ebner
Glands of Blandin-Nuhn

Back 36

Glands of von Ebner

Front 37

Which of the following structures contacts posteriorly with the isthmus of the thyroid gland?

Larynx
Pharynx
Trachea
Esophagus
Carotid sheath

Back 37

Trachea

Front 38

The infrahyoid muscles receive their motor innervation from which of the following?

Vagus nerve
Supraclavicular nerves
Brachial plexus
Pharyngeal plexus
Branches of the cervical plexus

Back 38

Branches of the cervical plexus

Front 39

Which of the following types of tissues can be demonstrated on the posterior slope of the articular eminence?

Hyaline cartilage
Fibrocartilage
Fibrous connective tissue
Articular cartilage
Elastic cartilage

Back 39

Fibrous connective tissue

Front 40

Dentinal tubules are S-shaped in the crown of the tooth due to the

incremental pattern.
epithelial diaphragm.
crowding of odontoblasts.
formation of peritubular dentin.
calcification pattern of maturing dentin.

Back 40

crowding of odontoblasts

Front 41

Fracture of the hamulus affects the action of which of the following muscles?

Superior constrictor of the pharynx
Levator veli palatini
Tensor veli palatini
Salpingopharyngeus
Buccinator

Back 41

Tensor veli palatini