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NBDE Part I > "M" > Flashcards

"M" Flashcards

1
Q

Fibrocartilage normally occurs in

A

Intervertebral discs

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2
Q

stab creating pneumothorax on left side usually results in collapse of which of the following

A

Left lung only

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3
Q

Sharpey’s fibers from PDL insert into what structures

A

Bundle Bone & Cementum

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4
Q

In an adult, Babinski sign indicates damage to

A

Upper motor neurons

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5
Q

Hydrocephalus, excess cerebral spinal fluid is found within

A

Ventricle

  • cant get to Subarach. space
  • Most commonly, hydrocephalus occurs in the cerebral aqueduct
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6
Q

Primary mineral component of alveolar bone

A

Hydroxyapetite

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7
Q

Primary function of cementum

A

Attach Sharpey’s fibers

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8
Q

Mucosa of the anterior 2/3 of tongue develops primarily from

A

Lateral Lingual Swellings

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9
Q

Initially, developing heart is positioned

A

anterior to prechordal plate

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10
Q

Melanocytes migrate to lamina propria of oral mucosa from which of the following

A

Neural Crest

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11
Q

Blood from cephalic vein drains into which of the following veins

A

Axillary

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12
Q

Coupled respiration involves

A

ADP, O2, Electron donor, inorganic phosphate

-NOT CO2!

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13
Q

Depression in roof of mouth. Gives rise to anterior pituitary

A

Rathke’s pouch

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14
Q

3rd week of dev. immediately behind two halves of mandibular arch, a rounded swelling named ____ appears. Described by His as undergoing enlargement to form the buccal part of _____

A

Tuberculum impar

Buccal part of tongue

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15
Q

Gives rise to Post. 1/3 of tongue (aka copula)

A

Hypobranchial eminence

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16
Q

Gives rise to mucosa of ant. 2/3 of tongue

A

Lateral Lingual Swellings

17
Q

Cells of notochord

A

mesoderm—main axial body support—found ventral to neural tube

18
Q

Neural tube becomes

A

CNS–brain and spine

ectodermal wall forms the rudiment of the nervous system

center of tube–neural canal

19
Q

Free FA in plasma are mainly associated with

A

serum albumin

20
Q

Required for Normal blood clot formation

A

Ca, Thrombin, Vitamin K, Proteolysis

NOT PLASMIN

21
Q

Combines with Heparin to inhibit clotting

A

Anti-thrombin III

22
Q

Anticoagulants

A

Heparin
Dicumarol
Sodium citrate
Any Antithrombin substance

23
Q

Colloid osmotic pressure of blood is important because it

A

prevents excess loss of fluid from capillaries

24
Q

Most likely to promote depolymerization of ECM

A

Hyaluronidase

25
Q

Portion of NS that contains Cardiac, Vomiting and Vasomotor centers

A

Medulla

26
Q

Globular blood transport protein that carries calcium

A

Albumin

27
Q

Sympathetic stimulation would cause

A
  • Dilates pupil
  • Inc. HR and force of contraction
  • Dilates bronchioles
  • Dilates blood vessels in skeletal muscles (in animals)
  • Constricts BV in GI organs
  • Sweat secretion
  • Inhibits peristalsis
  • Increases renin secretion (inc. bp)
  • Promotes detumescence (penis)
  • Promotes emission prior to ejaculation
28
Q

Same value for intracellular and interstitial fluid

A

Total osmotic pressure

29
Q

Reduced renal blood flow can cause hypertension by

A

releasing renin

30
Q

Which of the following describes the effect of a drug that inhibits renal carbonic anhydrase

A

It decreases sodium reabsorption in the proximal tubule

31
Q

Composition of plaque is most similar to

A

Oral bacteria

NOT CALCULUS

32
Q

Substance released by blood platelets and causes platelets to stick together

A

Thromboxane A2

33
Q

During Isovolumetric contraction what happens

A

AV and SL valves are closed

-The left ventricular pressure is rising rapidly

34
Q

Characteristics of nerve fibers that conduct sensory input of pain from oral-facial region

A

C fibers
-Small diameter, unmyelinated

Note: a-fibers are large and myelinated

NBDE Part I (23 decks)

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