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STEP 1 > Monday > Flashcards

Monday Flashcards

1
Q

What muscles and nerves are derived from the first branchial arch?

A

“M’s and T’s”

  • Muscles
    • Muscles of mastication
    • Mylohyoid
    • Tensor Tympani
    • Tensor veli palatini
  • Nerves
    • Trigeminal
      • Mandibular branch
      • Maxillary branch
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2
Q

Which amino acids are found in large quantities in elastin?

A

Proline

Glycine

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3
Q

What is the MOA of adenosine as an antiarrhythmic?

A
  • Increased K+ out of cell
  • Decreased intracellular Ca2+ => No depolarization
  • This stops the heart transiently
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4
Q

What is the lymphatic drainage of the following parts of the rectum?

  • Upper
  • Lower, above pectinate line
  • Lower, below pectinate line
A
  • Upper
    • Pararectal
  • Lower, above pectinate line
    • Internal iliac
  • Lower, below pectinate line
    • Superficial inguinal nodes
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5
Q

What is the lymphatic drainage of the testes? The scrotum?

A
  • Testes
    • Para-aortic
    • B/c actually from abdomen; Same as ovaries
  • Scrotum
    • Superficial inguinal
    • Truely is a superficial structure
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6
Q

What muscles and nerves are derived from the second branchial arch?

A

“S’s”

  • Muscles
    • MM of Facial expression
    • Stylohyoid
    • Stapedius
  • Nerves
    • CN Seven (Facial)
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7
Q

What is the antidote to Opioid overdose?

A

Naloxone

Naltrexone

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8
Q

What is the antidote to Benzodiazepine overdose?

A

Flumazinil

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9
Q

What is the antidote to TCA overdose?

A

Ammonium Chloride

(NH4Cl)

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10
Q

What is the antidote to Heparin overdose?

A

Protamine Sulfate

Heparin = H (like H+) = proton = protamine sulfate

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11
Q

What is the antidote to Theophylline overdose?

A

Beta blocker

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12
Q

What muscles and nerves are derived from the third branchial arch?

A

“Pharyngeal”

  • Muscles
    • Stylopharyngeus
  • Nerve
    • Glossopharyngeal
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13
Q

What muscles and nerves are derived from the fourth and sixth branchial arches?

A
  • Nerves: CN X
    • 4: superior laryngeal
    • 6: recurrent laryngeal (speech)
  • Muscles
    • 4: cricoid, pharyngeal muscles
    • 6: intrinsic mm of larynx except cricoid (speech)

*** 6 = think speech

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14
Q

What heart defect is associated with Chromosome 22q11 deletion?

A

Truncus arteriosus

Tetralogy of Fallot

(Chromosome Twenty-two q11 del = Truncus and Tetrology)

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15
Q

What heart defect is associated with Congenital Rubella?

A

PDA

Pulmonary artery stenosis

(R and P are close together in the alphabet)

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16
Q

What heart defect is associated with Turner Syndrome?

A

Coarctation of aorta

Bicuspid aortic valve

17
Q

What heart defect is associated with Marfan?

A

Aortic Insufficiency

18
Q

What surface markers are present on macrophages?

A
  • CD14
  • CD40
  • MHC II
  • B7
19
Q

What surface markers are on NK cells?

A
  • CD16
    • Binds Fc of IgG
  • CD 56
    • Unique to NK cells
20
Q

What heart sound is associated with dilated congestive heart failure?

A

S3

21
Q

What heart sound is associated with chronic HTN and a stiffened left ventricle?

A

S4

22
Q

Which viral vaccines are potentially dangerous to patients with an egg allergy?

A

Influenza

Yellow Fever

23
Q

Which vaccines are Live Attenuated?

A

“Attention! Please Vaccinate Young Infants w/ MMR Regularly”

  • Attenuated
  • Polio (Saben, oral)
  • Varicella
  • Yellow Fever
  • _I_ntranasal _I_nfluenza
  • MMR
  • Rotavirus
24
Q

What germ layer gives rise to the Thymus?

A

Endoderm

25
Q

What germ layer gives rise to the Spleen?

A

Mesoderm

(Derived from foregut messentery)

26
Q

What germ layer gives rise to the the Aorticopulmonary Septum?

A

Neural crest

27
Q

What germ layer gives rise to the Anterior pituitary?

A

Surface ectoderm

28
Q

What germ layer gives rise to the Bones of the skull?

A

Neural crest

29
Q
A

STEP 1 (16 decks)

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