motivation
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Malignant hyperthermia
is often inherited as an autosomal dominant disorder, for which there are at least 6 loci of interest. MH is phenotypically and genetically related to central core disease (CCD), an autosomal dominant disorder characterized both by MH symptoms and myopathy. MH is sometimes confused with the neuroleptic malignant syndrome, but the two syndromes are distinct.
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| motivation
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Gastrin is a key secretagogue peptide in gastric physiology. Which of the following statements is incorrect?
A) The key amino acid sequence in gastrin is identical to that in cholecystokinin
B) Gastrin secretion is controlled by a negative feedback loop
C) Gastrin is secreted by G cells at the gastric antrum
D) Gastrin secretion decreases following administration of proton pump inhibitors
E) Gastrin increases HCl production primarily via upregulation of histamine release
ANS; D
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| motivation
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classic SIDE EFECTS
1) Skin photosensitivity is caused primarily by tetracycline antibiotics
2.Grey Baby Syndrome is caused by chloramphenicol
3.Penicillins are one of the most commonly implicated drugs with regard to serious drug hypersensitivity reactions.
4.aminoglycosides. -OTOTOXICITY, NEPHROTOXICITY, AND NEUROTOXICITY"
5.Red Man syndrome is associated with Vancomycin, usually when infused at fast rates.
6.Acute cholestatic hepatitis is the keyword for ERYTHROMYCIN.
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| motivation
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The axillary nerve
comes off the posterior cord of the brachial plexus at the level of the axilla and carries nerve fibers from C5 and C6. The axillary nerve also carries sensory information from the shoulder joint, as well as the skin covering the inferior region of the deltoid muscle. It supplies 2 muscles: deltoid, and teres minor (one of the rotator cuff muscles). The axillary nerve may be injured in anterior dislocations of the shoulder joint, compression of the axilla with a crutch or fracture of the surgical neck of the humerus. Injury to the nerve results in:
1. Paralysis of the teres minor and deltoid muscles. Abduction of the shoulder is impaired.
2. Loss of sensation from the shoulder joint, as well as the skin covering the inferior region of the deltoid muscle (which is innervated by the Superior Lateral Cutaneous Nerve branch of the Axillary nerve).
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| motivation
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The long thoracic nerve
This nerve characteristically arises by three roots from the fifth, sixth, and seventh cervical nerves (C5-C7).
The nerve descends behind the brachial plexus and the axillary vessels, resting on the outer surface of the Serratus anterior.
Due to its long, relatively superficial course, it is susceptible to injury either through direct trauma or stretch.
Injury has been reported in almost all sports, typically occurring from a blow to the ribs underneath an outstretched arm. Surgically the long thoracic nerve can also be damaged during surgery for breast cancer, specifically radical mastectomies that involve removal of axillary lymph nodes.
A lesion of the nerve paralyses the serratus anterior to produce scapula winging, which is most prominent when the arm is lifted forward or when the patient pushes the outstretched arm against a wall
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| motivation
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The radial nerve
It originates from the posterior cord of the brachial plexus with roots from C5-T1.
The radial nerve and its branches supply the dorsal muscles, such as triceps brachii, the extrinsic extensors of the wrist and hands, and the cutaneous nerve supply to most of the back of the hand (the ulnar nerve cutaneously innervates the back of the little finger.)
The radial nerve divides into a deep branch, (which becomes the posterior interosseous nerve), and continues as the superficial branch which goes on to innervate the dorsum (back) of the hand.
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| motivation
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The Sturge-Weber syndrome (SWS)
also called encephalotrigeminal angiomatosis, is a neurocutaneous disorder with ANGIOMAS involving the LEPTOMENINGES and skin of the face, typically in the OPTHALMIC (V1) distribution of the trigeminal nerve.
The cutaneous angioma is called a PORT-WINE-STAIN. It is caused by a somatic mutation that appears to cause alterations in regulation of the structure and function of blood vessels.
Treatment for Sturge-Weber syndrome is SYMPTOMATIC. Laser treatment may be used to lighten or remove the birthmark. Anticonvulsant medications may be used to control seizures. Surgery may be performed on more serious cases of glaucoma.
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| motivation
Forum Newbie
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MICRO VIRUS
ss:-
parvo and hepadna
ds:-
papova,adeno,herpes,and pox
nonenveloped:-
PAP(mnemonic) parvo,adeno and papova
enveloped:-
herpes,pox and HEPADNA (which is again considered non- enveloped b/c it has false envelop)
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| antidepressant
Forum Guru
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Posts: 557
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thats plagiarism, u copied a great deal from a post of usmleforum, u should have mentioned that.
http://www.usmleforum.com/files/forum/2007/1/2268...
Edited by antidepressant on 11/20/07 - 03:04 PM
___________________
Step 1 can not defeat me!!!!!!!!
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| motivation
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ANATOMY
http://mywebpages.comcast.net/wnor/lesson5.htm
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