Boards Flashcards

0
Q

Blood supply of tympanic membrane

A

Lateral aspect is from circumferential and manubrial branches of the deep auricular branch of the maxillary artery

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1
Q

Innervation of cornea

A

Ophthalmic division of trigeminal nerve

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2
Q

Most common site of chronic sinusitis

A

Maxillary most common
Ethmoid
Frontal
Sphenoid least common

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3
Q

Course of facial nerve

A

Motor part Arises from facial nerve nucleus in pons
Sensory and parasympathetic parts from nervus intermedius

Both enter PETROUS TEMPORAL BONE via INTERNAL AUDITORY MEATUS, emerges from STYLOMASTOID FORAMEN and passes through PAROTID GLAND where it divides into 5 major branches

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4
Q

Narrowest portion of trachea

A

Subglottis in infants and children

LARYNX in adults

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5
Q

Normal thyroid weight

A

10 to 30 grams

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6
Q

Normal cystic duct diameter

A

1-5 mm

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7
Q

Metastasis of papillary thyroid cancer

A

Lymph nodes

Lung (snowflake appearance)

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8
Q

Muscle that ABDUCTS vocal cords

A

Cricoarytenoid

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9
Q

Blood supply of sinoatrial node

A

Right coronary artery

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10
Q

Location of SA node

A

Submyocardial at lateral aspect of junction of SVC and R atrium

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11
Q

Site of injection for intercostal nerve block

A

Angle of the rib, 7cm lateral to midline. Intercostal space, midway between dermatomes to be blocked

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12
Q

Gastrointestinal Stromal Tumors (GIST) arise from what layer

A

Interstitial cells of cajal between muscular layers of GI tract (myenteric plexus?)

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13
Q

What is the pringle maneuver?

A

Often used in liver surgery to minimize blood loss.
Haemostat is used to clamp the hepatoduodenal ligamentinterrupting blood flow through the hepatic artery and portal vein should bleeding continue, it is likely that the IVC or hepatic vein were also traumatized

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14
Q

What is Sengstaken-Blakemore

A

Tube inserted through nose or mouth to manage UGIB due to esophageal varices

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15
Q

Most common anal fistula

A

Intersphincteric most common

Transsphincteric
Suprasphincteric
Extrasphincteric least common

16
Q

Problem in foot drop

A

Weakness of ankle and toe dorsiflexors
(tibialis anterior, extensor hallucis longus, extensor digitorum longus)
Reffered to as steppage gait
Results in equinovarus deformity

17
Q

What are the different leg compartments

A

Anterior
Lateral
Deep posterior
Superficial posterior

18
Q

Components of anterior compartment of leg

A
Muscles
Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
Peroneus tertius

Neurovasculature
Deep peroneal nerve
Anterior tibial vessels

19
Q

Lateral compartment of leg

A

Muscles
Fibularis/peroneus longus and brevis

Neurovasclature
Superficial peroneal nerve

20
Q

Components of deep posterior compartment of leg

A

Tibialis posterior
Flexor hallucis longus
Flexor digitorum longus
Popliteus

Tibial nerve
Posterior tibial vessels

21
Q

Components of superficial posterior compartment of leg

A

Gastrocnemius
Soleus
Plantaris

Medial sural cutaneous nerve

22
Q

Blood supply of ureter

A
Proximal to distal RGAC
Renal
Gonadal
Abdominal Aorta
Common illiac artery

Laterally, by branches of internal illiac artery
Inferior vesical artery in men
Terine and vaginal arteries in women

23
Q

Langer’s Lines

A

Correspond to natural orientation of collagen fibers in the dermis
Generally perpendicular to the orientation of the underlying muscle fibers

24
Q

Thigh is divided into how many compartments and what are they?

A

Medial (obturator nerve), posterior (sciatic nerve) and anterior (femoral nerve) fascial compartments

25
Q

Components of the Medial Fascial Compartment of the Thigh

A

Obturator nerve
Hip ADDUCTORS
Gracilis
Adductor longus, brevis and magnus

26
Q

Components of Posterior Fascial Component of Thigh

A

Sciatic Nerve

Knee Flexors and Hip Extensors
Hamstrings
   Biceps femoris
   Semitendinosus
   Semimembranosus
27
Q

Components of Anterior Fascial Compartment of Thigh

A

Femoral nerve

Hip flexors
Knee extensors

Sartorius (longest muscle in the human body)
Quadriceps (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius)

28
Q

Longest muscle in human body

A

Sartorius

29
Q

Completely covers the tesis

A

Tunica albuginea/vaginalis?

30
Q

Site of paracentesis

A

Anterolateral abdominal wall into the peritoneal cavity through the linea alba. Needle is inserted superior to the urinary bladder and in a location that avoids the inferior epigastric artery