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30 Cards in this Set
- Front
- Back
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Which of the following represents a malignant tumor arising from mesenchymal tissue?
A. Sarcoma B. Adenoma C. Carcinoma D. Hamartoma E. Choristoma |
A. Sarcoma
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Which of the following represents the epithelial change MOST predictive of cancer?
A. Dysplasia B. Metaplasia C. Acanthosis D. Parakeratosis E. Hyperkeratosis |
A. Dysplasia
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Which of the following is the MOST common skin cancer in humans?
A. Malignant melanoma B. Basal cell carcinoma C. Squamous cell carcinoma D. Sebaceous adenocarcinoma E. Transitional cell carcinoma |
B. Basal cell carcinoma
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The change of a more specialized cell type to a less specialized cell type is
A. dysplasia. B. neoplasia. C. metaplasia. D. hyperplasia. E. Hypoplasia |
C. metaplasia.
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Preganglionic parasympathetic fibers that synapse in the pterygopalatine ganglion travel in which of the following nerves?
a. Maxillary b. Lesser palatine c. Lesser petrosal d. Greater palatine e. Greater petrosal |
e. Greater petrosal
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An ischemic stroke can be visualized on a CT scan as:
a. A radiolucent area. b. A radiopaque area. c. A radioopaque area with a radiolucent border. d. A radiolucent area with a radiopaque border. e. Ischemic strokes can not be visualized using CT scans. |
a. A radiolucent area.
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Schwann's cells arise from
a. glial cells b. spongioblasts c. neural crest cells d. monocytes e. none of the above |
c. neural crest cells
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In an action potential, which of the following occurs? 1. Depolarization- influx of Na+ 2. Depolarization- efflux of Na+ 3. Repolarization- influx of K⁺ 4. Repolarization- efflux of K⁺
a. 1 then 3 b. 3 then 1 c. 1 then 4 d. 2 then 3 e. 2 then 4 |
c)1 then 4
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Which of the following is not a component of the Inner ear?
a. Saccule b. Utricle c. Ampullae d. Cochlear Labyrinth e. Tympanic Membrane |
e. Tympanic Membrane
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Gadolinium-enhanced MRIs use radioactive isotopes. They are used for better imaging of hard tissues.
Both statements are true. Both statements are false. The first statement is true, but the second is false. The first statement is false, but the second is true. |
Both false.
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Abnormalities in cell growth that cause cells, tissues or organs to be smaller than normal include (a) metaplasia; (b) atrophy; (c) anaplasia; (d) hypoplasia.
A. (a) and (b) only B. (a), (b) and (d) C. (a) and (c) only D. (a), (c) and (d) E. (b), (c) and (d) F. (b) and (d) only. |
b+d
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The buccal mucosa typically has which of the following epithelia?
A. Simple columnar B. Pseudostratified columnar C. Non-keratinized, stratified squamous D. Parakeratinized, stratified squamous E. Orthokeratinized, stratified squamous |
C. Non-keratinized, stratified squamous
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Granulation tissue is comprised of each of the following components EXCEPT one. Which one is this EXCEPTION?
A. Fibroblasts B. Plasma cells C. Capillary buds D. Endothelial cells E. Newly formed collagen |
B. Plasma cells
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Which of the following promotes edema?
A. Increased blood proteins B. Increased sodium excretion C. Decreased lymphatic drainage D. Decreased venule blood pressure E. Increased plasma osmotic pressure |
C. Decreased lymphatic drainage
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Which of the following BEST describes the primary ionic movement during the depolarization phase of a nerve action potential?
A. Potassium ions moving from inside to outside the membrane B. Potassium ions moving into the fiber from interstitial fluid C. Large organic-negative ions moving from inside the fiber to outside the fiber D. Sodium ions moving from inside the membrane to outside the membrane E. Sodium ions moving from outside the membrane to inside the membrane |
E. Sodium ions moving from outside the membrane to inside the membrane
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Which of the following is the characteristic immunoglobulin present in human external secretions (i.e. saliva, tears, intestinal juice)?
A. Monomeric IgE B. Monomeric IgA C. Polymeric IgG4 D. Polymeric IgA E. Secretory IgD |
D. Polymeric IgA
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The nasopalatine nerve reaches mucosa in the oral cavity via which of the following foramina?
A. Incisive B. Infraorbital C. Lesser palatine D. Greater palatine E. Pterygopalatine |
A. Incisive
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Which of the following exhibits phagocytic activity in the central nervous system?
A. Ependymal cell B. Microglial cell C. Oligodendrocyte D. Fibrous astrocyte E. Protoplasmic astrocyte |
B. Microglial cell
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Pain impulses from the patient's fractured mandible are carried by which of the following nerves?
A. Lingual B. Inferior alveolar C. Auriculotemporal D. Zygomaticotemporal E. Nerve to lateral pterygoid |
C. Auriculotemporal
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One piece of examined soft tissue contains obvious glandular tissue. Histological examination reveals that it is composed of purely serous acini. This is MOST likely which' of the following glands?
A. Buccal B. Parotid C. Sublingual D. Submandibular E. Posterior palatal |
B. Parotid
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The primary function of the anterior portion of the temporalis muscle is to
A. elevate the mandible only. B. protrude the mandible only. C. elevate and retrude the mandible. D. help stabilize the articular disc. E. move the mandible to the contralateral side. |
A. elevate the mandible only.
elevate=bring it up. its a closer |
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An abnormal increase in blood pressure in a healthy person will RESULT in an increased number of impulses traveling to the heart over which of the following nerves?
A. Vagus nerves B. Sympathetic nerves C. Branches of thoracic nerves D. Branches of the trigeminal nerve E. Branches of the glossopharyngeal nerve |
A. Vagus nerves
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the patient's sensation of "clogged ears" is due to pressure on the auditory tubes, then which of the following nerves is providing this sensory innervation?
A. Glossopharyngeal B. Lesser occipital C. Vestibulocochlear D. Zygomatic temporal E. Posterior deep temporal |
A. Glossopharyngeal
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Examination of the right side of the cadaver's skull reveals a fracture running through the petrotympanic fissure. Which of the following structures is MOST likely affected by such a fracture?
A. Chorda tympani B. Auriculotemporal nerve C. Mandibular branch of V D. Middle meningeal artery E. Accessory meningeal artery |
A. Chorda tympani
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Which of the following nerves innervates the inferior buccal mucosae of the floor of the oral cavity?
A. Facial B. Trigeminal C. Lingual D. Mylohyoid E. Hypoglossal |
B. Trigeminal
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Free fatty acids in plasma are
A. metabolically inert. B. mainly bound to [beta]-lipoproteins. C. independent of epinephrine secretion. D. mainly associated with serum albumin. |
D. mainly associated with serum albumin.
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Which of the following represents the correct size and characteristic of the nerve fibers that conduct sensory input of pain from the oral-facial region?
A. Large diameter, myelinated B. Small diameter, myelinated C. Large diameter, unmyelinated D. Small diameter, unmyelinated E. Intermediate diameter, myelinated |
D. Small diameter, unmyelinated
myelin is motor. so if its sensory must be unmyelinated |
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A patient who cannot chew:
1. has lost the nerve and muscle function of seventh nerve and temporalis, masseter and pterygoid muscles 2. has lost the nerve and muscle function of trigeminal nerve and temporalis, masseter and pterygoid muscles 3. has lost the nerve and muscle function of both the seventh and fifth cranial nerve to the muscles of mastication 4. has lost the nerve and muscle function of the trigeminal nerve and orbicularis oris, and buccinator muscle 5. has lost the nerve and muscle function of the facial nerve and the orbicularis oris and buccinator muscle |
2. has lost the nerve and muscle function of
trigeminal nerve and temporalis, masseter and pterygoid muscles |
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Protrusion of the tip of the tongue beyond the opening of
the oral cavity is accomplished primarily by the: 1. mylohyoid 2. hyoglossal 3. styloglossus 4. genioglossus 5. intrinsic muscles of the tonge |
4. genioglossus
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Which of the following represents an adequate stimulus
for semicircular canals? 1. a nystagmus 2. a change in the force of gravity 3. a linear acceleration and deceleration 4. an angular acceleration and deceleration |
4. an angular acceleration and deceleration
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