BumbleB
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1) If a drug has a half life of 2 hours and its started in a patient at a maintanence dose rate how many hours would it take to reach 87.5% of the steady state concentration?
a) 1.0 b) 4.0 c) 6.0 d) 8.0 e) 10.0
2) In the adult this structure remains as an embryonic remnant of the structure connecting the tongue to the thyroid gland.
a) foramen ovale b) foramen cecum c) thyroglossal duct d) thymus
3) The following muscles are derivatives of the 1st branchial arch
a)diaphragm b)tensor tympani c)platysma d)stapedius e)palatoglossus
4)In a "right dominant" coronary circulation this artery supplies the inferior portion of the left ventricle
a) circumflex b) acute marginal c) Left anterior descending via posterior ascending d) posterior descending branch of right coronary
5) This anatomical structure would be found on the same "side" of the peritoneum as the tail of the pancreas
a) transverse colon b) kidney c) the ligament of trietz d) rectum e) adrenal glands
6) A 30 year old pateint come in with chronic lower back and leg pain and inability to sit up for more than an hour comfortably. No history of recent injury, acute trauma, or any type of arthritis. Upon performing an xray the doctor sees a posteriorly displaced structure in the spinal cord compressing his lumbar spinal nerves at level of L3. What type of collagen makes up this structure.
a) I b) II c) IV d) X e) XII
7) This is where plasma cells would normally be found in the lymph node
a) high endothelial venules b) cortex c) paracortex d) medulla e) germinal centers
8) A pateint comes in with half a beard, half a haircut (assume he cuts his hair himself) and draws all numbers on the face of a clock on the right side, which lobe is damaged?
a) right frontal b) right parietal c) left temporal d) left parietal e) right temporal
9) A child has a rapidly growing, epithelial tumor derived from the Rathke cleft. How is his eyesight most likely affected.
a) Complete loss of vision in one eye b) bitemporal loss of vision c) binasal loss of vision d) bitemporal loss of vision with macular sparing
10) An elderly person comes in with poor vision, on a fundoscopic exam you see sprouting of many new blood vessels and damage to the macula, what growth factor is responsible?
a) VEGF b) FGF c) EGF d) IGF e) PDGF
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| mjl1717
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1)b
2)c
3)b
4)c
5)?
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| ssrpk
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4) d
7)e
8 ) c??
9)b
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| SDK
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1)C..6 hr....50% in 2hr....75% in 4 hr.....87.5% in 6 hr.
2)C
3)B
4)D
5)D??
6)A
7)
9)B...
10)A
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| merrk
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1) c
2) c
3) b
4) d
The PDA supplies the inferior wall of LV, ventricular septum, and the posteromedial papillary muscle.
The artery that supplies the Posterior Descending Artery and the Posterolateral Artery (PLA) detereemines the coronary dominance. If the RCA supplies both these arteries (85%), the circulation can be classified as "right-dominant". If the LCX supplies both these arteries, the circulation can be classified as "left-dominant". If the RCA supplies the PDA and the LCX supplies the PLA, the circulation is known as "co-dominant".
5) a (The tail is contained within the splenorenal ligament but
all the other parts of the pancreas are retroperitoneal)
6) b
7)e
8) d
9) d
10) a
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| SDK
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The structure derived from rathke cleft(pouch) is Pituatary Gland..
Tumor of this compress Optic chaisma....compression of O.chaisma produce bitemporal feild loss..... 8)
Is Rathke's cleft....Rathke's pouch???
Macular sparing occur if lesion involve corona radiata or above it.....cortex..
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| JHUEngima
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Number 8
Drawing all numbers on right side of clock means he is ignoring his left. Right parietal lobe responsible for left sided neglect (contralateral).
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| BumbleB
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1.c 2.b 3.b 4.d 5.a 6.b 7.d 8. b 9.b 10.a
comments
1.c 3 half lives
2. b - in the embryo it called thyroglossal duct, its foramen cecum in adult
3. b - tensor tympani, (1st arch = mandibular n., 2nd = facial, 3rd = IX)
4. d - PD bracnh of RCA makes a heart right dom.
5. a - everythin else is retro
6. b - nucleus pulposus and cartilege in general is mostly type 2 collagen
7. d- mature plasma cells are in the medulla of LN's
8. b- parietal damage causes contralat neglect
9. b - no macular sparing b/c it in optic chiasm
10. a -excess VEGF causes macular degeneration, or blood vessel growth in general
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