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Kaplan Qbank USMLE



Author82 Posts
  #76

Vasculogenesis vs. angiogenesis
"Vascu is new. Angi is pre": Vasculogenesis is new vessels developing in situ from existing mesenchyme. Angiogenesis is vessels develop from sprouting off pre-existing arteries.

Weeks 2, 3, 4 of development: an event for each
Week Two: Bilaminar germ disc.
Week Three: Trilaminar germ disc.
Week Four: Four limbs appear.

Teratogenesis: when it occurs
TEratogenesis is most likely during organogenesis--between the: Third and Eighth weeks of gestation.

Lung development phases "Every Premature Child Takes Air":
Embryonic period
Pseudoglandular period
Canalicular peroid
Terminal sac period
Alveolar period

Branchial arch giving rise to aorta
"Aor- from Four": Aorta is from fourth arch.

Woffian duct (mesonephric duct) derivatives.
Gardener's SEED:
· Female: Gartner's duct, cyst
· Male:
Seminal vesicles
Epididymis
Ejaculatory duct
Ductus deferens

Foregut derivatives
"Little Embryo People Do Like Swallowing, Producing Gas": Lungs Esophagus Pancreas Duodenum (proximal) Liver Stomach Pancreas Gall bladder


___________________
Experience is what u get when don't get what u want to get

  #77

Does anyone has a Mnemonic for pharyngeal pouches and phryngeal arches derivatives ???


___________________
Experience is what u get when don't get what u want to get

  #78

The phrayngeal Pouches i created a formula for them ...

1A, 2P, 3 TIP, 4 SPUB

It might seem even more difficult but let me explain ...

1A .. 1 for the 1st letter of Alphabet which is A stands for Auditory ... So, 1st Pouch gives the epithelial lining of Auditory tube and middle ear cavity

2P ... 2 for the 2nd letter of the Alphabet which is the P ... for Palatine ... So, 2nd pouch gives the epithelial lining of cryPts of Palatine tonsil

3 TIP ... 3 then 3 letters TIP & start with T of Three ... these letters are the abbreviations given in kaplan for those derivatives and stands for Thymus and Inferior Parathyroid gland

4 SPUB ... 4 then 4 letters SPUB ... Also the abbreviations given in the notes for Superior Parathyroid gland and Ultimobranchial Body

The Arches ...

The Nerves ...

March 1975 i.e. 1975 = X, IX, VII, V and March to remember it is V3 ....

Arrange them .... Arch 1 gives V3, 2 gives VII, 3 gives IX and both 4 & 6 will have X

The Arteries ...

1st - part of MAXillary a. -------------- 1st arch is MAXimal

2nd- Stapedial a. & Hyoid a. ------- Second for Stapedial

3rd- Common Carotids and parts of internal Carotids ---- C is the 3rd letter of Alphabet

4th- on the lt. --> AORtic Arch and on the Rt.--> Rt. Subclavian ----

4th arch (4 limbs) = Systmeic & Also remember that AOR is from FOUR

6th- Pulmonary arteries and Ductus arteriosus ---- 6th arch= Pulmonary and Pulmonary - Systemic Shunt ( Ductus )

Muscles (Mesoderm) & Skeletal (Neural Crest) Derivatives ...

1st arch ...

Muscles => V3 innervates M.D. My T.V. i.e.

Muscles of mastication ( masseter, temporalis, pterygoid)

Digastric ( Anterior Belly)

Mylohyoid

tensor Tympani

tensor Veli

Skeletal => I'M getting Skeletal like Silvester

Skeletal remind u of skeletal derivatives then

I for the 1 i.e. 1st arch and for Incus

M for Malleus/Maxilla/Mandible

2nd Arch ....

To remember the Muscles innervated by the CN VII ...

Imagine someone making the Facial Expression to say " PSS ... "

Facial Expression muscles

Posterior Belly of digastric

Stapedius ----> and it reminds u of the other skeletal derivative Stapes

Stylohyoid -----> and it reminds u of the the Hyoid ... but not all the Hyoid, we still in the 2nd level so choose the lesser that is above i.e. the Lesser Horn of the upper body of the Hyoid.( and when u get to the 3rd arch do the opposite )

Hope that Helps, little complicated but better than nothing gringringrin:


Edited by Mezo on 05/13/08 - 05:35 AM

___________________
Experience is what u get when don't get what u want to get

  #79

one of my professors gave me this one.
i tot its rly cool.
PAD for the sequence of meninges in cranial cavity.

from inside outside cos the brain is protected that way
P- pia mater
A-arachnoid mater
D-dura mater

my first post. shoot me down if u want to.

  #80

i made 1 up for nerve supplies of pharyngeal arches.

Mellisa fucks, girls suck rarely.
sorry its rated.

M-mandibular nerve
F-facial nerve
G-glossopharyngeal nerve
S-superior laryngeal nerve
R-recurrent laryngeal nerve

  #81

vignan wrote:
i made 1 up for nerve supplies of pharyngeal arches.

Mellisa fucks, girls suck rarely.
sorry its rated.

M-mandibular nerve
F-facial nerve
G-glossopharyngeal nerve
S-superior laryngeal nerve
R-recurrent laryngeal nerve


lolllllllgringringringrin

___________________
FUTURE 99ER

  #82

i find this very useful

ARTERIES CORRECPONDING TO AORTIC ARCHES

M 1ST AORTIC ARCH - MAXILLARY ARTERY

S 2ND AORTIC ARCH- STAPEDIAL ARTERY

C 3RD -COMMON CAROTIDS AND internal Carotids

A 4th ARCH OF AORTA and right subclavian

R 5th REGRESSES

D 6th DUCTUS ARTERIOSUS and pulmonary artery





also A WAY TO REMEMBER THE ERVES IS THAT we all remember the COGULATION FACTORS EFFECTED BY WARFARIN ie 2 7 9 and 10

NERVES ARE CLOSE TO IT

5 , 7, 9 , 10 , 10








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