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MD1 2016 - Abdominal > Netter's High Yield Facts (Applied Anatomy) 2016-1 > Flashcards

Netter's High Yield Facts (Applied Anatomy) 2016-1 Flashcards

1
Q

What is a disc hernia?

A

Protrusion of the nucleus pulposus through the annulus fibrosis, usually in the posteriolateral direction where the annulus is thinnest.

Most commonly at the L4/L5 or L5/S1 level

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2
Q

What is the consequence of a disc hernia?

A

Herniation into the vertebral canal may compress the nerve root below the disc and cause pain in the related dermatome

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3
Q

What does age-related deydration of the nucleus proposus do?

A

Contribute to loss of height and narrowing of the IV foramina

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4
Q

What is McBurney’s point?

A

A surface landmark that roughly indicates the location of the appendix, located approximately 1/3 of the way along a line from the ASIS to the umbilicus.

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5
Q

What is the clinical presentation of an appendicitis?

A

Pain first presents in the epigastric region, moves to the umbilical region and localizes in the right lower quadrant.

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6
Q

What is a possible complication of appendicitis?

A

Rupture of the appendix leads to peritonitis which presents with severe pain, fever and abdominal rigidity.

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7
Q

What are the 5 causes for abdominal distention?

A 
Fat
Feces
Fetus
Flatus
Fluid
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8
Q

What is the most common place for an abdominal hernia?

A

Inguinal region

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9
Q

What is a direct inguinal hernia?

A

Protrudes through the layers of the wall in Hesselbach’s (the inguinal) triangle, MEDIAL to the epigastric vessel.

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10
Q

What is an indirect inguinal hernia?

A

Indirect inguinal hearnias leave LATERAL to the epigastric vessel, entering the inguinal canal through its deep ring.

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11
Q

What is the hernial sac?

A

Consists of peritoneum containing a portion of a viscus (small/large bowel) and is covered by the layers that cover the spermatic cord

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12
Q

What is a Psoas Abscess?

A

A result of vertebral TB infection that spreads to the psoas sheath that becomes thickened leading to pus accumulation beneath it.

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13
Q

Where does the pus from a Psoas Abscess go?

A

The pus tracks inferiorly within the sheath, deep to the inguinal ligament, surfacing in the superior part of the thigh.

Pus can also track into the adjacent iliac fascia, forming a recess in the iliacosubfascial fascia, where the large bowel can get trapped in it (painful)

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14
Q

What are the muscles of the abdominal wall?

A

Transversus abdominus
Internal oblique
Rectus abdominis
External oblique

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15
Q

What supplies blood to the sigmoid colon?

A

left colic artery

superior sigmoid artery

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16
Q

What is a hiatus hernia?

A

Herniation of part of the stomach through the esophageal hiatus of the diaphragm, predisposing reflux

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17
Q

What are the two types of hiatus hernias?

A

sliding hernias - involve the cardiac of the stomach sliding superiorly

rolling hernias - involve part of the fundus extending through the hiatus

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18
Q

What is an intestinal volvulus?

A

Rotation of a loop of bowel upon its mesentery that may cause bowel obstruction and can compromise the vascular supply leading to ischemia, infarction, and necrosis.

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19
Q

Which parts of the bowel are most likely to undergo intestinal volvulus?

A

small bowel

sigmoid colon

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20
Q

What are the 5 sphincters of the GI tract?

A 
APE OIL
Anus
Pyloric
Esophageal
Oddi
Ileocecal
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21
Q

What is choleithiasis?

A

gallstones that can cause pain in the RUQ if they obstruct the cystic duct after the consumption of a fatty meal

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22
Q

What is the frequency of pain associated with gallstones?

A

intermittent as the gallstone gets squeezed around but constant pain may be as a result to secondary inflammation

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23
Q

What is a way that the spleen can be injured?

A

Splenic rupture - trauma causing rib fracture or sudden increases in intra-abdominal pressures

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24
Q

what is the significance of the subphrenic abscess?

A

Most common site for pus to accumulate, where Right sided abscesses are more common due to the high incidence of perforated appendices.

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25
What is an abdominal aortic aneurysm?
localized enlargement of the aorta as a result of congenitla or acquired weakness of the wall, where common site is just above bifurcation of aorta to common iliac arteries
26
What is nephrolithiasis?
Renal stones that can be found between urinary bladder and renal calyces.
27
What kind of pain do you get from nephrolithiasis?
colicky pain radiating from loin to groin due to ureter contractions to try to move the stone
28
How are nephrolithiasis diagnosed?
CT scan
29
What is the treatment of nephrolithiasis?
Wait for it to pass, surgical, or lithotripsy
30
What is a winged scapula?
damage to the long thoracic nerve to serratus anterior causes winging of the scapula as its medial border lifts away from the thorax when arm is raised.
31
What is the consequence of a winged scapula?
The arm cannot be abducted above the horizontal plane because glenoid cavity cannot be rotated upward without serratus anterior
32
What is a bursa?
Contains a thin layer of synovial fluid and is located where tendons rub against bone, ligaments or tendons or when skin moves bone directly beneath
33
What are two examples of bursas?
subscapular bursa located between subscapularis tendon and neck of scapula and communicates directly with the cavity of the shoulder joint subacromial (subdeltoid) bursa located between deltoid, supraspinatous tendon and glenohumeral capsule, does not communicate with cavity of shoulder, facilitates movements of deltoid over joint capsule and supraspinatous tendon under the coracoacromial arch
34
How is the clavicle usually fractured?
Fall on an outstretched hand or direct trauma to the shoulder, fractures at the middle third (thinnest portion of the clavicle)
35
In what direction does most shoulder dislocations occur in and why?
anterioinferior direction caused by excessive extension and lateral rotation of the humerus (throwing motion) the humeral head places stress on the joint capsule, which may be torn anteriorly, with elements of the rotator cuff.
36
Which nerves are endangered during a shoulder dislocation?
axillary and musculocutaneous nerves
37
An epileptic seizure or electrocution can cause a _____ dislocation.
posterior
38
What tendon of the rotator cuff is most likely affected in degenerative tendonitis?
supraspinatus
39
What are the four rotator cuff muscles?
SITS supraspinatus infraspinatus teres minor subscapularis
40
What is the most common spot for a humeral fracture?
surgical neck, common in elderly with osteoporotic bone and fall on an outstretched arm
41
What is the nerve that is endangered in a humeral fracture at the surgical neck?
axillary nerve
42
What is the nerve that is endangered in a humeral fracture at the mid shaft?
radial nerve
43
what is the nerve that is endangered in a humeral fracture at distal end?
median nerve
44
What causes subluxation of the radial head (Nursemaid Elbow)?
caused by sudden pulling on the upper limb with the forearm pronated
45
What is the Nursemaid's elbow?
distal attachment of the annular ligament is torn and radial head slips out, trapping the ligament between it and the capitulum
46
What is Student's elbow?
repeated pressure or friction on the subcutaneous olecranon bursa causes it to become inflamed,
47
What is the tennis elbow and what causes it?
caused by repetitive movements of the wrist, causing lateral epicondylitis. the pain is felt over the lateral aspect of the elbow.
48
What is the golfer's elbow?
medial epicondylitis from repeated wrist flexion
49
What does the radial nerve innervate?
``` BEST Brachioradialis Extensors Supinator Triceps ```
50
What are the muscles that flex the elbow?
Brachialis Biceps Brachioradialis
51
What forms the superficial palmar arch?
SU dr main terminal branch of ULNAR artery that enters between the hook of hamate and pisiform bone that is superficial to the flexor retinaculum
52
What forms the deep palmar arch?
su DR formed from terminal branch of the RADIAL artery and passes from the anatomical snuff box on the hand dorsum, runing between heads of first dorsal interosseus muscle to reach palm
53
What are the structures in the floor of the anatomical snuff box?
radial artery radial styloid process base of first metacarpal scaphoid and trapezium
54
What are the borders of the anatomical snuff box?
anterior - abductor pollicis longus tendons and extensor pollicis brevis posterior - extensor pollicis longus
55
What is the Dupuytren's Contracture?
progressive fibronodular thickening of hte palmar fascia leads to a fixed flexion deformity of all fingers. usually bilateral, treated surgically
56
What is the most commonly fractured bone of the carpus?
Scaphoid bone | Takes a long time to heal because the proximal part of the bone has poor blood supply
57
What is the Colle's Fracture?
complete transverse fracture within the distal 2cm of the radius, where distal fragment displaced dorsally, giving the classic dinner fork deformity.
58
What results in a Colle's Fracture?
forced dorsiflexion of the hand, such as breaking a fall with an outstretched, pronated hand. most common in adults >50yo elderly women
59
What are the functions of the palmar interossei and dorsal interossei muscles?
Palmar interossei adducts (PAD) Dorsal interossei abducts (DAB)
60
What nerve is affected by Carpal Tunnel Syndrome and what is the presentation?
Median nerve pain/paraesthesia in lateral 3.5 digits, worse at night, may radiate to elbow
61
What nerve is affected when you hit your "funny bone" and where do you feel the tingling??
Ulnar nerve at the level of the medial epicondyle of the humerous Pain/paraesthesia felt at the medial aspect of the lebow radiating to the medial forearm and medial 1.5 digits + weakness of hand muscles
62
What are the muscles supplied by the median nerve in the hand?
``` LOAF lumbricals opponens abductor pollicis brevis flexor pollicis brevis ```
63
What are the deep back muscles?
``` I LOVE SPAGHETTI - SOME MORE RAGU Illiocostalis Longissimus Spinalis - Semispinalis Multifidus Rotatores ```
64
What is the erector spinae group?
I LIKE STANDING Ilicostalis Longissimus Spinalis
65
What is one of the most common sites for carcinoma of the breast?
axillary tail (upper outer quadrant)
66
At what landmark is the level of the heart at?
T5-T8
67
At what level is the esophageal hiatus in the diaphragm?
T10
68
Where is the sternal angle of Louis?
Level of the bifurcation of the trachea, arch T4/T5 of aorta
69
When attempting thoracocentesis, you must avoid damage to the intercostal vein, artery and nerve in the ________ on the ____ surface of each rib by inserting ________ the rib?
costal groove inferior below
70
What is thoracic outlet syndrome and what causes it?
ischemic pain and numbness in the shoulder and upper limb as a result of compression of the subclavian artery or inferior trunk of the brachial plexus by an uncommon cervical rib
71
What is the order of the contents of the NVB in the costal groove?
VAN Vein, artery, nerve
72
What is a pneumothorax?
The entry of air into the pleural cavity because of a penetrating wound or a fractured rib
73
What is a hydrothorax?
escape of fluid into a pleural cavity (pleural effusion)
74
What is pleural adhesion?
inflamed pleurae that stick together and can be heard with a stethoscope (very painful)
75
What nerve innervates the parietal pleura?
phrenic nerve | 3 p's
76
Cardiac tamponade
inflammation of the pericardium (pericarditis) which results in pericardial effusion can result in stab wounds symptoms: collapsed pulse, distention of neck veins

MD1 2016 - Abdominal (5 decks)

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