Tuesday, 13 August 2013

HIGH YIELD ANATOMY FOR USMLE STEP 1


BACK
1. Exaggerated over-curvature of thoracic area of vertebral column Kyphosis
2. Lateral deviation of vertebral column Scoliosis
3. Major feature of cervical vertebrae Transverse foramina
4. Vertebra located at level of iliac crest L4
5. Ligament that connects internal surface of laminae of vertebrae Ligamentum flavum
6. Ligament that checks hyperextension of vertebral column Anterior longitudinal
7. Ligament affected by whiplash injury Anterior longitudinal
8. Ligament which limits skull rotation Alar
9. Defective portion of vertebra with spondylolisthesis in cervical area Pedicle
10. Defective portion of vertebra with spondylolisthesis in lumbar area Pars interarticularis,
Lamina
11. Common direction of all superior articular facets of vertebrae Posterior
12. Structure in contact with posterior surface of dens Transverse ligament of
atlas (part of cruciate)
13. Most commonly herniated intervertebral disc L4-5
14. Most common nerve compressed with herniated intervertebral disc L5
15. Spinal nerve affected by protrusion of the disc between C5/6 C6
16. Thoracic intercostal space located deep to triangle of auscultation sixth
17. Vertebral level of lumbar puncture L4
18. Innervation of suboccipital muscles Suboccipital nerve
19. Roof of suboccipital triangle Semispinalis capitis
20. Floor of suboccipital triangle Posterior arch of atlas;
posterior atlanto-occipital
membrane
21. Major vessel within suboccipital triangle Vertebral artery
22. Synonym for dorsal ramus of C2 Greater occipital nerve
23. Inferior extent of dura-arachnoid sac SV2
24. Inferior extent of spinal cord LV2
25. Location of internal vertebral plexus Epidural space
UPPER LIMB
26. Most frequently fractured bone of body Clavicle
27. Most frequently dislocated carpal bone Lunate
28. Most frequently fracture carpal bone Scaphoid
29. Name of fracture of distal radius that produces “dinner fork” appearance Colleʼs fracture
30. Nerve injured with fracture of surgical neck of humerus Axillary
31. Nerve injured with fracture of medial humeral epicondyle Ulnar
32. Nerve injured with fracture of shaft of humerus Radial
33. Nerve injured in wrist drop Radial
34. Muscle that is chief flexor and chief extensor at shoulder joint Deltoid
35. Muscles innervated by axillary nerve Deltoid and teres minor
36. Muscle that initiates abduction of arm Supraspinatus
37. Most commonly torn tendon of rotator cuff Supraspinatus
38. Two muscles that rotate scapula for full abduction of arm Trapezius and serratus
anterior
39. Tendon that courses through shoulder joint Long head of biceps
40. Chief supinator muscle of hand Biceps brachii
41. Injury to what nerve causes winged scapula Long thoracic nerve
42. Spinal levels of axillary nerve C5 and C6
43. Spinal levels to muscles of the hand C8 and T1
44. Dermatome of thumb C6
45. Nerve to thenar compartment Recurrent branch of
2
Median
46. Innervation of adductor pollicis Ulnar (deep br.)
47. Innervation to all interosseous muscles Ulnar (deep br.)
48. Region affected by upper trunk injury of brachial plexus Shoulder
49. Region affected by lower trunk injury of brachial plexus Intrinsic hand muscles
50. Nerve compressed with carpal tunnel syndrome Median
51. Nerve affected by cubital tunnel syndrome Ulnar
52. Paralysis of which muscles results in total “claw” hand Lumbricals
LOWER LIMB
53. Boundaries of femoral triangle Inguinal ligament, sartorius
and adductor longus
54. Structure immediately lateral to femoral sheath Femoral nerve
55. Structure immediately medial to femoral artery in femoral sheath Femoral vein
56. Contents of femoral canal Deep inguinal lymph
nodes
57. Medial boundary of femoral ring Lacunar ligament
58. Structures that course throughout entire length of adductor canal Femoral artery and vein
59. Structures that course through only portion of adductor canal Saphenous nerve, nerve
to vastus medialis,
descending genicular
vessels
60. Muscle that forms floor of popliteal fossa Popliteus
61. Muscle that is chief flexor at hip joint Iliopsoas
62. Muscle that prevents pelvis from tilting when walking Gluteus medius
63. Muscle that extends leg Quadriceps femoris
64. Muscle that unlocks knee joint Popliteus
65. Muscle affected with “foot slap” Tibialis anterior
66. Chief invertors of foot Tibialis anterior and
posterior
67. Chief evertors of foot Fibularis longus and brevis
68. Ligament that checks backward displacement of femur on tibia Anterior cruciate
69. Ligament laxity with positive valgus maneuver Medial collateral
70. Most commonly injured ankle ligament Anterior talofibular
71. Ligament stretched with “flat foot” Plantar calcaneonavicular
(spring)
72. Joints for movements of inversion and eversion Subtalar and transverse
Tarsal
73. Major artery to head of femur in adult Medial femoral circumflex
74. Nerve affected with fracture of head and neck of fibula Common fibular
75. Tendon affected with avulsion fracture of 5th metatarsal Fibularis brevis
76. Innervation of adductor magnus Obturator, tibial portion of
Sciatic
77. Nerve affected with tarsal tunnel syndrome Tibial
78. Cutaneous innervation to medial side of foot Saphenous (L4)
79. Cutaneous innervation to lateral side of foot Sural (S1)
80. Cutaneous innervation of heel Tibial
81. Cutaneous innervation to dorsal aspect of web between toes 1 and 2 Deep fibular
82. Cutaneous innervation of most of dorsum of foot Superficial fibular
83. Major dermatome to big toe L4
84. Dermatome to small toe S1
85. Spinal level of patellar reflex L4
86. Spinal level of Achilles reflex S1
87. Locking of knee when walking suggests Meniscus injury
88. Major injury triad with lateral impact to knee Medial collateral, medial
3
meniscus and anterior
cruciate ligament
THORAX
89. Dermatome around nipple T4
90. Vertebral level at inferior angle of scapula TV7
91. Structure that lies immediately posterior to manubrium Thymus
92. Rib related to oblique fissure of lung posteriorly 2nd
93. Rib paralleled by horizontal fissure of right lung 4th
94. Inferior extent of lung at midclavicular line 6th rib
95. Inferior extent of pleura at midclavicular line 8th rib
96. Inferior extent of lung at midaxillary line 8th rib
97. Inferior extent of pleura at midaxillary line 10th rib
98. Inferior extent of lung posteriorly 10th rib
99. Inferior extent of pleura posteriorly 12th rib
100. Innervation of costal pleura Intercostal nerve
101. Innervation of mediastinal pleura Phrenic nerve
102. Site for auscultation of pulmonary valve Left 2nd interspace
103. Site for auscultation of aortic valve Right 2nd interspace
104. Site for auscultation of tricuspid valve Xiphisternal joint
105. Site for auscultation of mitral valve Left 5th interspace,
midclavicular line
106. Heart chamber with greatest sternocostal projection Right ventricle
107. Chamber that forms apex of heart Left ventricle
108. major chamber that forms base of heart Left atrium
109. Heart chamber that contains moderator band Right ventricle
110. Artery that determines coronary dominance Posterior interventricular
111. Usual origin of SA and AV nodal arteries Right coronary artery
112. Location of SA node Cristae terminalis
113. Major vessel that drains the musculature of the heart Coronary sinus
114. Innervation of fibrous pericardium Phrenic nerve
115. Most common cause of systolic ejection murmur Aortic stenosis
116. Rib associated with sternal angle Second rib
117. Vertebral level associated with sternal angle Disc between TV4-5
118. Location of ductus arteriosus Between left pulmonary
artery and aorta
119. Nerve potentially injured with repair of patent ductus arteriosus Left recurrent laryngeal
Nerve
120. Veins that unite to form brachiocephalic Subclavian and internal
Jugular
121. Veins that unite to form superior vena cava Right and left
Brachiocephalic
122. Termination of azygos vein Superior vena cava
123. Structures that lie to right and left of thoracic duct Azygos veins, aorta
124. Spinal levels of greater splanchnic nerve T5-9
125. Spinal levels of lesser splanchnic nerve T10-11
126. Spinal levels of least splanchnic nerve T12
127. Thoracic structures that can compress the esophagus Left bronchus, aorta and
Diaphragm
128. Disease often associated with thymoma Myasthenia gravis
ABDOMEN
129. Remnant of umbilical vein Round ligament of liver
4
130. Dermatome to umbilical area T10
131. Dermatome to suprapubic area L1
132. Vertebral level associated with origin of celiac artery T12
133. Vertebral level associated with origin of SMA L1
134. Vertebral level associated with origin renal arteries L2
135. Vertebral level associated with origin of gonadal arteries L2
136. Vertebral level associated with origin of IMA L3
137. Vertebral level of umbilicus Disc L3-4
138. Vertebral level of aortic bifurcation L5
139. Vertebral level for formation of IVC L5
140. Spinal levels to muscles of anterior abdominal wall T7 – L1
141. Structure that forms superficial inguinal ring Aponeurosis of external
Oblique
142. Structure that forms deep inguinal ring Trasnversalis fasica
143. Structure that form floor of inguinal canal Inguinal ligament
144. Bony attachments of inguinal ligament ASIS and pubic tubercle
145. Structures that form conjoint tendon Internal oblique and
transversus abdominis
146. Abdominal layer continuous with external spermatic fascia External oblique
147. Abdominal continuous with cremasteric fascia Internal oblique
148. Abdominal layer continuous with internal spermatic fascia Transversalis fascia
149. Structure that lies between protrusion sites of direct and indirect hernias Inferior epigastric artery
150. Type of hernia that enters deep inguinal ring Indirect inguinal
151. Most common type of hernia Indirect inguinal
152. Most common side for indirect inguinal hernia Right
153. Type of hernia that protrudes through Hesselbachʼs triangle Direct inguinal
154. Boundaries of Hesselbachʼs triangle Inguinal ligament, rectus
abdominis, inferior
epigastric artery and vein
155. Type of hernia that traverses both deep and superficial rings Indirect inguinal
156. Fluid in processus vaginalis Hydrocele
157. Communication between greater and lesser sacs Epiploic foramen
158. Superior border of epiploic foramen Caudate lobe of liver
159. Inferior border of epiploic foramen Part one of duodenum
160. Posteiror border of epiploic foramen IVC
161. Ligament that contains portal vein, hepatic artery and bile duct Hepatoduodenal (lesser
omentum)
162. Structure that limits spread of ascitic fluid in left paracolic gutter Phrenicocolic ligament
163. Structuer that limits spread of ascitic fluid within infracolic compartment Root of mesentary
164. Superior extent of right paracolic gutter Hepatorenal recess
165. Most inferior portion of peritoneal cavity Rectouterine pouch
166. Structures supplied by celiac artery Stomach, duodenum, liver,
spleen, gallbladder,
pancreas
167. Branches of celiac artery Left gastric, common
hepatic and splenic
168. Blood supply to stomach Right and left
gastroepiploics, right, left
and short gastric
169. Major structures of bed of stomach Pancreas, spleen, left
kidney and suprarenal
gland, diaphragm
170. Ducts that join to form common bile duct Cystic and common
Hepatic
171. Structure that separates right and left lobes of liver Falciform ligament
5
172. Origin of cystic artery Right hepatic artery
173. Ribs directly related to spleen Ribs 9-11
174. Organs related to spleen Stomach, colon, left
kidney, tail of pancreas
175. Artery to small intestine SMA
176. Organs supplied by both celiac and SMA Duodenum, pancreas
177. Organs supplied by both SMA and IMA Transverse colon
178. Vessel located posterior to head of pancreas IVC
179. Vessel located posterior to neck of pancreas Portal vein
180. Veins that unite to form portal vein Splenic and SMV
181. Clinically importatnt organs for portacaval anastomoses Esophagus, rectum, liver
182. Two structures that lies posterior to SMA near its origin Left renal vein, duodenum
183. Three distinguishing features of the large intestine Tenia coli, haustra,
epiploic appendages
184. Termination of left gonadal vein Left renal vein
185. Termination of right gonadal vein Inferior vena cava
186. Location of initial pain of appendicitis Umbilical region
187. Motor innervation of diaphragm Phrenic
188. Sensory innervation of diaphragm Phrenic + intercostal
189. Spinal levels of phrenic nerve C3-5
190. Vertebral level that inferior vena cava traverses diaphragm T8
191. Vertebral level that esophagus traverses diaphragm T10
192. Structures that traverse diaphragm with esophagus Vagal trunks
193. Vertebral level that aorta traverses diaphragm T12
194. Structure that traverses diaphragm with aorta Thoracic duct
195. Structure that traverses diaphragm through crura Greater, lesser and least
splanchnic nerves
PELVIS AND PERINEUM
196. Structure that separates pelvis and perineum Pelvic diaphragm
197. Two major components of pelvic diaphragm Levator ani + coccygeus
198. Two major components of levator ani Pubococcygeus and
Iliococcygeus
199. Two muscles which close lateral pelvic wall Obturator internus and
Piriformis
200. Means by which obturator internus exits pelvis Lesser sciatic foramen
201. Means by which piriformis exits pelvis Greater sciatic foramen
202. Innervation of detrusor Pelvic splanchnics (S2-4)
203. Remnants of umbilical arteries Medial umbilical ligaments
204. Chief artery to rectal mucosa Superior rectal
205. Most common type of pelvic inlet in females Gynecoid
206. Two remnants of gubernaculum in females Ovarian and round
Ligament
207. Ligament that contains ovarian vessels Suspensory ligament of
Ovary
208. Lymph nodes for ovary and testes Lumbar
209. Normal position of uterus Anterverted, anteflexed
210. Chief uterine support Pubococcygeus
211. Ligament that contains uterine vessels Lateral cervical
212. Structure potentially injured with hysterectomy Ureter
213. Relation of ureter to uterine artery Inferior and posterior
214. Structure that separates deep and superficial perineal spaces Perineal membrane
215. Bony landmarks between anal and UG triangles Ischial tuberosities
216. Lateral wall of ischioanal fossa Fascia of obturator
Internus
6
217. Structure that forms the pudendal canal Fascia of obturator
Internus
218. Structure that separates internal and external hemorrhoids Pectinate line
219. Lymph nodes for area superior to pectinate line of anal canal Internal iliac, IM
220. Lymph nodes for area inferior to pectinate line of anal canal Superficial inguinal
221. Major structure of deep perineal space Sphincter urethrae
222. Lymph nodes for glans penis Deep inguinal
223. Muscle which compresses the bulb of penis Bulbospongiosus
224. Muscle which compresses the crus of penis Ischiocavernosus
225. Muscles which meet at the perineal body Superficial and deep
perineal, bulbospongiosus,
external anal sphincter,
pubococcygeus
HEAD AND NECK
226. Vertebral level of hyoid bone CV3
227. Vertebral level of thyroid cartilage CV4,5
228. Vertebral level of cricoid cartilage CV6
229. Muscles that are innervated by CN XI Trapezius, SCM
230. Structures that course between anterior and middle scalene Brachial plexus,
subclavian artery
231. Innervation of omohyoid, sternohyoid and sternothyroid Ansa cervicalis
232. Innervation of digastric Anterior belly = CN V
Posterior belly = CN VII
233. Innervation of carotid sinus and carotid body CN IX, CN X
234. Major structures to pass through pharyngeal wall superior to superior constrictor Auditory tube, levator veli
Palatini
235. Nerves of pharyngeal plexus CN IX, CN X,
Sympathetics
236. Only muscle innervated by CN IX Stylopharyngeus
237. Structures that pierce thyrohyoid membrane Internal laryngeal nerve,
superior laryngeal artery
238. Only muscle to abduct vocal cords Posterior cricoarytenoid
239. Innervation of cricothyroid External laryngeal nerve
240. Innervation of laryngeal muscles exclusive of cricothyroid Recurrent laryngeal
241. Muscle that increases tension on vocal cords Cricothyroid
242. Sensory nerve to larynx superior to vocal cords Internal laryngeal
243. Sensory nerve to larynx inferior to vocal cords Recurrent laryngeal
244. Site of aspirated lodged fishbone Piriform recess
245. Afferent – efferent limbs of gag reflex CN IX – CN X
246. Afferent – efferent limbs of cough reflex CN X – CN X
247. Nerve injury that causes hoarseness following thyroid surgery Recurrent laryngeal
248. Chief structures that traverse internal acoustic meatus CN VII and VIII
249. Foramen where CN VII exits skull Stylomastoid foramen
250. Major arterial supply to calvaria and supratentorial dura Middle meningeal
251. Major cutaneous nerve of face CN V
252. Major artery to internal structures of head Maxillary
253. Spinal levels of sympathetic fibers to head T1 – 2
254. Autonomic ganglia for CN III Ciliary
255. Sensory ganglia for CN VII Geniculate
256. Autonomic ganglia for CN VII PPG and submandibular
257. Autonomic ganglia for CN IX Otic
258. Muscle attached to disc of TMJ Lateral pterygoid
259. Muscle that retracts mandible Temporalis
260. Major nerve to TMJ (pain) Auriculotemporal
261. Specific nerves that elicit secretion from the parotid gland Tympanic branch of CN IX
7
and lesser petrosal
262. Branch of CN V that carries parasympathetics to parotid Auriculotemporal
263. Structure that opens into superior meatus of nasal cavity Posterior ethmoid sinus
264. Structures that open into middle meatus of nasal cavity Frontal, maxillary, anterior
and middle ethmoid
265. Structures that opens into inferior meatus of nasal cavity Nasolacrimal duct
266. Major artery to nasal cavity Sphenopalatine
267. Most common site of nose bleed Kiesselbachʼs plexus
268. Innervation of levator veli palatini CN X
269. Muscle that opens auditory tube Tensor veli palatini
270. Innervation of tensor veli palatini CN V3
271. Nerve that provides taste to anterior 2/3 of tongue Chorda tympani
272. Site of cell bodies for nerve that carries taste to anterior 2/3 of tongue Geniculate ganglion
273. Specific nerve that elicits secretion from submandibular gland Chorda tympani
274. Branch of CN V that carries parasympathetic to submandibular Lingual
275. Nerve injured when tonsilar pillars sag and uvula deviates CN X
276. Nerve potentially injured with tonsillectomy CN IX
277. Muscle that protrudes tongue Genioglossus
278. Nerve injured when deviation of protruded tongue Ipsilateral CN XII
279. Specific nerve that stimulates tear production Greater petrosal CN VII
280. Sensory nerve to cornea CN V1 (nasociliary)
281. Muscle that elevates and abducts eye Inferior oblique
282. Muscle that depresses and abducts eye Superior oblique
283. Site of preganglionic nerve cells that elicits dilation of pupil Lateral horn, T1 - 2
284. Site of postganglionic nerve cells that elicits dilation of pupil Superior cervical ganglion
285. Site of preganglionic nerve cells that elicits constriction of pupil Edinger-Westphal
286. Site of postganglionic nerve cells that elicits constriction of pupil Ciliary ganglion
287. Innervation of external surface of tympanic membrane Auriculotemporal, CN X
288. Innervation of internal surface of tympanic membrane CN IX
MIXED TOPICS
289. Level where ascending aorta is continuous with arch of aorta TV4-5
290. Level where arch of aorta is continuous with descending aorta TV4-5
291. Effect of sympathetic nerves on lungs Bronchodilation,
Vasoconstriction
292. Effect of parasympathetic nerves on lungs Bronchoconstriction,
Vasodilation
293. Rationale for aspirated small objects to go to right primary bronchus Wider diameter, shorter
and more vertical
294. Needle location for therapeutic pleural tapping Superior to 12th rib,
posteriorly
295. Name given to portion of right ventricle prior to beginning of pulmonary trunk conus arteriosum or
infundibulum
296. Name given to orientation where uterus and vagina intersect at angle of 90 degrees Anteversion
297. Name given to orientation where uterine body and cervix intersect at angle of 10-15 degrees Anteflexion
298. Ridge located between sinus venarum and right ventricle Cristae terminalis
299. Nerve at risk when performing thyroidectomy Both left and right
recurrent laryngeal nerves
300. Specific muscle that holds patella in place Vastus medialis
301. First portion of quadriceps femoris to atrophy with injury to femoral nerve Vastus medialis
302. Last portion of quadriceps femoris to recover following injury Vastus medialis
303. Innervation to nail bed of middle finger Median nerve
304. Innervation to nail bed of ring finger Ulnar and median
305. Spinal nerve affected with herniated disc at L3/L4 L4

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