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fmd > 1staidanasci3 > Flashcards

1staidanasci3 Flashcards

1
Q
  1. The supraoptic nucleus is intricately involved
    in which of the following bodily functions?
    A. Aggression
    B. Satiety
    C. Hunger
    D. Water balance
    E. Circadian rhythm
A

D. Water balance

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2
Q
  1. Sensory innervation to the hypothenar region
    of the hand travels via the
    A. radial nerve.
    B. ulnar nerve.
    C. musculocutaneous nerve.
    D. median nerve.
    E. axillary nerve
A

B. ulnar nerve.

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3
Q
  1. Which of the following muscles divides the
    maxillary artery into three distinct anatomical
    segments?
    A. Lateral pterygoid
    B. Masseter
    C. Posterior belly of digastric
    D. Stylohyoid
    E. Anterior belly of digastric
A

A. Lateral pterygoid

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4
Q
  1. Each of the following structures receives
    blood from the external carotid EXCEPT
    A. thyroid.
    B. brain.
    C. salivary glands.
    D. teeth.
    E. jaw bones.
A

B. brain.

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5
Q
  1. The vertebral artery enters the spine at which
    level?
    A. C6
    B. T2
    C. T1
    D. C5
    E. C7
A

A. C6

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6
Q
  1. The function of the salpingopharyngeus
    muscle is to
    A. open the auditory tube.
    B. raise the mandible.
    C. propel food down pharynx.
    D. retract the tongue.
    E. protrude the mandible.
A

A. open the auditory tube.

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7
Q
  1. Within which bone is the vestibulocochlear
    nerve most contained?
    A. Parietal
    B. Occipital
    C. Temporal
    D. Frontal
    E. Maxilla
A

C. Temporal

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8
Q
  1. Which of the following regarding the pectoralis
    major muscle is TRUE?
    A. It acts to protract and depress the glenoid
    of the scapula.
    B. It is an accessory muscle of respiration.
    C. It is innervated by the lateral and medial
    pectoral nerves.
    D. It inserts at the coracoid process.
    E. It is located superiorly to the pectoralis
    minor.
A

C. It is innervated by the lateral and medial
pectoral nerves.

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9
Q
  1. Which of the following arteries supplies the
    maxillary canines and incisors?
    A. Pterygoid
    B. Sphenopalatine
    C. Descending palatine
    D. Infraorbital
    E. Pharyngeal
A

D. Infraorbital

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10
Q
  1. The cisterna chyli drains lymph from each of
    the following EXCEPT
    A. thoracic duct.
    B. abdomen.
    C. pelvis.
    D. inguinal region.
    E. lower extremities.
A

A. thoracic duct.

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11
Q
  1. As the dentin ages, which of the following is
    typically seen?
    A. Increased dentinal tubule diameter
    B. Decreased reparative dentin
    C. Decreased dead tracts
    D. Decreased sclerotic dentin
    E. Increased deposition of peritubular
    dentin
A

E. Increased deposition of peritubular
dentin

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12
Q
  1. A 17-year-old patient presents at your office
    asking why there is a brownish-gray band
    across each of her teeth. You suspect that she
    was previously prescribed a regimen of tetracycline
    most likely at which of the following
    ages?
    A. 10
    B. 11
    C. 5
    D. 14
    E. 17
A

C. 5

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13
Q
  1. Which of the following vitamin deficiencies
    is LEAST likely to directly affect enamel
    structure?
    A. A
    B. B
    C. C
    D. K
    E. Calcium
A

D. K

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14
Q
  1. Which type of epithelium is most commonly
    found lining closed body cavities?
    A. Simple columnar
    B. Simple squamous
    C. Transitional
    D. Stratified squamous
    E. Pseudostratified columnar
A

B. Simple squamous

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15
Q
  1. Which of the following is TRUE of the basement
    membrane?
    A. Lamina lucida is electron dense.
    B. Lamina densa is a product of the connective
    tissue.
    C. Type IV collagen is typically found in the
    basal lamina.
    D. Reticular lamina contains anchoring
    fibrils.
    E. It does not have a filtering function
A

C. Type IV collagen is typically found in the
basal lamina.

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16
Q
  1. Which of the following oral epithelial types is
    keratinized?
    A. Sulcular epithelium
    B. Alveolar mucosa
    C. Junctional epithelium
    D. Attached gingiva
    E. Gingival col
A

D. Attached gingiva

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17
Q
  1. Which of the following has the LOWEST
    organic composition?
    A. Cementum
    B. Dentin
    C. Pulp
    D. Enamel
    E. Alveolar bone
A

D. Enamel

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18
Q
  1. With increased age of the pulp, each of the
    following occurs EXCEPT
    A. decreased collagen content.
    B. decreased size of apical foramen.
    C. decreased sensitivity.
    D. decreased cellularity.
    E. increased calcification
A

A. decreased collagen content.

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19
Q
  1. Which of the following portions of the tooth
    or its associated structures allows for orthodontic
    movement?
    A. Enamel
    B. Cementum
    C. Dentin
    D. Epithelial attachment
    E. Alveolar bone
A

B. Cementum

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20
Q
  1. What type of nerve ending is most common
    in the periodontal ligament?
    A. Coiled
    B. Spindle
    C. Free
    D. Meissner
    E. Ruffini
A

C. Free

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21
Q
  1. Which of the following is the depression of
    the interdental gingiva that connects the lingual
    and facial papillae?
    A. Gingival col.
    B. Alveolar mucosa.
    C. Attached gingiva.
    D. Mucogingival junction.
    E. Interdental papilla
A

A. Gingival col.

22
Q
  1. Which of the following is FALSE regarding
    the primary palate?
    A. It can be involved in facial clefting.
    B. It contains the incisive foramen.
    C. It usually contains no teeth.
    D. It is mesenchymal in origin.
    E. It is formed by fusion of two median nasal
    processes
A

C. It usually contains no teeth.

23
Q
  1. Which of the following best describes circumpulpal
    dentin?
    A. Most is produced in the form of intertubular
    dentin.
    B. It is the initial 150 μm of dentin laid
    down.
    C. It lacks hydroxyapatite.
    D. It forms before mantle dentin.
    E. It lacks dead tracts.
A

A. Most is produced in the form of intertubular
dentin.

24
Q
  1. During amelogenesis, enamel is laid down
    each day at a rate of
    A. 0.04 μm.
    B. 1 mm.
    C. 0.1 mm.
    D. 4 μm.
    E. 4 mm.
A

D. 4 μm.

25
Q
  1. Formation of which of the following brain
    structures normally occurs LAST in the
    fetus?
    A. Cerebellum
    B. Ventricles
    C. Neural tube
    D. Hemispheres
    E. Temporal lobe
A

E. Temporal lobe

26
Q
  1. During odontogenesis, which of the following
    cells determine the type of tooth to be
    formed?
    A. Mesoderm
    B. Mesenchyme
    C. Ectomesenchyme
    D. Endoderm
    E. Ectoderm
A

C. Ectomesenchyme

27
Q
  1. The area of skin covering the parotid gland
    receives sensory innervation from which
    nerve?
    A. Transverse cervical
    B. Superficial temporal
    C. Long buccal
    D. Lesser occipital
    E. Great auricular
A

E. Great auricular

28
Q
  1. Each of the following is TRUE regarding the
    sacral plexus EXCEPT
    A. one of its main branches is the obturator
    nerve.
    B. it is located in the posterior pelvic wall.
    C. it provides motor innervation to parts of
    the leg.
    D. it supplies sensory innervation to the
    lower back.
    E. it is comprised of L4-L5 and S1-S4.
A

A. one of its main branches is the obturator
nerve.

29
Q
  1. Which of the following cranial nerves does
    NOT have an efferent involuntary parasympathetic
    function?
    A. VII
    B. V
    C. X
    D. III
    E. IX
A

B. V

30
Q
  1. Which is TRUE regarding general visceral
    afferent function of the vagus nerve?

A. It is involved with chemo- and baroreception
from the carotid body and sinus.
B. It travels through the jugular foramen.
C. Its origin of cell bodies is the nucleus
ambiguus.
D. It transmits sensation from the posterior
meninges.
E. It is involved with taste sensation

A

B. It travels through the jugular foramen.

31
Q
  1. Which of the following is FALSE regarding
    the adrenal gland?
    A. Zona fasciculata secretes glucocorticoids.
    B. Outer cortex contains chromaffin cells.
    C. Aldosterone is a mineralocorticoid produced
    here.
    D. Sex steroids are secreted from the innermost
    layer of the outer cortex.
    E. Inner medulla secretes catecholamines
A

B. Outer cortex contains chromaffin cells.

32
Q
  1. If a patient is suffering from lack of peristalsis
    in the large intestine, which of the following
    may be affected?
    A. Microvilli
    B. Myenteric plexus
    C. Plicae circulares
    D. Teniae coli
    E. Crypts of Lieberkühn
A

D. Teniae coli

33
Q
  1. Bile contains each of the following EXCEPT
    A. lipoproteins.
    B. plasmin.
    C. albumin.
    D. prothrombin.
    E. alpha and beta globulins
A

B. plasmin.

34
Q
  1. The temporal bone articulates with each of
    the following bones EXCEPT
    A. parietal.
    B. occipital
    C. zygoma.
    D. ethmoid.
    E. sphenoid.
A

D. ethmoid.

35
Q
  1. Terminal differentiation occurs during which
    stage of the cell cycle?
    A. G1
    B. S
    C. G0
    D. G2
    E. Mitosis
A

C. G0

36
Q
  1. Which of the following glands has paracrine
    function?
    A. Gastroenteropancreatic glands.
    B. Adrenal glands.
    C. Gonads.
    D. Salivary glands.
    E. Pituitary glands.
A

A. Gastroenteropancreatic glands.

37
Q
  1. The embryological stomodeum is lined by
    A. endoderm.
    B. mesoderm.
    C. neural crest.
    D. ectoderm.
    E. ectomesenchyme
A

D. ectoderm.

38
Q
  1. Which of the following structures has its
    embryological origin located further cranial
    in a 4- to 5-week-old fetus?
    A. Stapes
    B. Internal carotid artery
    C. Vagus nerve
    D. Glossopharyngeal nerve
    E. Stylopharyngeus muscle
A

A. Stapes

39
Q
  1. Which of the following best describes the
    decidual reaction of embryogenesis?
    A. Breakdown of the zona pellucida
    B. The first zygotic cleavage
    C. Invasion of the syncytiotrophoblast into
    the uterine endometrium
    D. Release of an ovum from the ovary
    E. Enlargement of the endometrium with
    lipid and glycogen accumulation
A

E. Enlargement of the endometrium with
lipid and glycogen accumulation

40
Q
  1. Which of the following is the number of chromosomes
    present after fusion of sperm and egg?
    A. 1/2N
    B. N
    C. 2N
    D. 3N
    E. 4N
A

C. 2N

41
Q
  1. Each of the following contains sinusoids
    EXCEPT
    A. epidermis.
    B. liver.
    C. lymphatic tissue.
    D. endocrine glands.
    E. spleen.
A

A. epidermis.

42
Q
  1. Peroxisomes contain which of the following
    enzymes?
    A. Elastase
    B. Collagenase
    C. Trypsin
    D. Chymotrypsin
    E. Catalase
A

E. Catalase

43
Q
  1. Production of vitamin D occurs at which of
    the following sites?
    A. Large intestine
    B. Kidney
    C. Spleen
    D. Liver
    E. Epidermis
A

E. Epidermis

44
Q
  1. Which of the following directly controls lens
    accommodation in the eye?
    A. Ciliary body
    B. Neural retina
    C. Choroids body
    D. Pupil
    E. Iris
A

A. Ciliary body

45
Q
  1. Serum includes each of the following
    EXCEPT
    A. electrolytes.
    B. fibrinogen.
    C. immunoglobulins.
    D. water.
    E. albumin
A

B. fibrinogen.

46
Q
  1. Which of the following is TRUE of the heart?
    A. The pericardium contains cardiac
    muscle.
    B. The endocardium has a layer of simple
    squamous endothelium.
    C. The innermost layer of the heart is
    pericardium.
    D. Normally the thickest portion of the heart
    is the endocardium.
    E. A layer of columnar epithelium surrounds
    the pericardium.
A

B. The endocardium has a layer of simple
squamous endothelium.

47
Q
  1. Which of the following is FALSE regarding
    heart conduction?
    A. The bundle of His conducts electric current
    to the Purkinje fibers.
    B. The SA node regulates the rate of electrical
    conductance.
    C. The autonomic nervous system regulates
    the rhythm of cardiac contraction.
    D. Cardiac muscle maintains an intrinsic
    rhythmicity.
    E. The pacemaker of the heart is the SA node
A

C. The autonomic nervous system regulates
the rhythm of cardiac contraction.

48
Q
  1. Which of the following is TRUE of platelets?
    A. They range 200,000-400,000 per mm3
    blood.
    B. They are involved in immunoregulation.
    C. The average lifespan is upward of
    120 days.
    D. They are nucleated.
    E. They function in blood gas transport.
A

A. They range 200,000-400,000 per mm3
blood.

49
Q
  1. Which of the following is the site of B-cell
    maturation?
    A. Lymph nodes
    B. Blood
    C. Thymus
    D. Bone marrow
    E. Target tissue
A

D. Bone marrow

50
Q
  1. Thyroxine is secreted from
    A. follicular cells.
    B. outer cortex of adrenals.
    C. pars distalis.
    D. pars intermedia.
    E. parafollicular cells
A

A. follicular cells.

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