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Flashcards in Anatomy Deck (23):
1

Optimal Site for Femoral Nerve Block

-inguinal crease lateral to the femoral artery (targets femoral nerve)

2

Actions of Peroneal Nerves

-superficial n: eversion and innervation of the anterolateral leg and dorsum of foot
-deep n: dorsiflexion

3

What is the function of a T tubule in a muscle?

-T tubules transmit depolarization from the sarcolema to the sarcoplasmic reticulum in rapid, uniform manner during muscle contraction

4

Horizontal transition of rectus abdominus (ie. transverse C section) risks damage to which arteries?

-inferior epigastric arteries enter the rectus abdominus at the level of the arcuate line

5

Location of CSF in Skull

-under arachnoid mater and above pia mater

6

Where the radial nerve can be injured?

-supinator canal: when using screw driver
-axilla: crutch palsy
-midshaft humerus

7

What nerve roots innervate the diaphragm?

-C3, C4, C5

8

What structures are involved in external rotation of shoulder?

-teres minor muscle
-infraspinatous tendon
-both are innervated by the suprascapular nerve

9

What is the omental bursa (lesser sac)?

-the space behind the stomach but in front of the retroperitoneal structures

10

Serratus Anterior Muscle

-when damaged causes winging of scapula
-innervated by long thoracic nerve

11

Where to do thoracentesis

-Midclavicular: 6th-8th rib
-Midaxillary: 8th- 10th rib
-Paravertebral: 10th-12th rib
-always insert above a rib to avoid nerve damage
-gen rule to go two ribs below start of dullness

12

Artery that runs with the radial nerve at the midshaft humerus?

-deep brachial artery
-may be damaged with radial nerve

13

Muscles of the Rotator Cuff

-supraspinatus (abduction)
-infraspinatus (external rotation)
-teres minor (adduction and external rotation)
-subscapularis (adduction and external rotation)
-SITS

14

Most Common Location of Anal Fissure?

-posterior midline distal to dentate line

15

Thoracic Outlet Syndome

-compression of lower trunk of brachial plexus in scalene triangle of neck
-upper extremity numbness, tingling and weakness worse with overhead movement or pitching
-inc. risk with extra cervical rib

16

Where to give butt injection?

-superlateral quadrant
-if give superomedial may cause contralateral hip drop w/ damage to sup. gluteal nerve

17

Bones of Wrist

-Some Lovers Try Positions That They Cannot Handle
-palm faces away from you and it goes proximal thumb to pinkie then distal thumb to pinkie
-scaphoid
-lunate
-triquetrum
-pisiform
-trapezium
-trapezoid
-capitate
-hamate

18

What muscle does arm abduction above 90 degrees?

-trapezius
-damage may cause shoulder droop
-innervated by spinal accessory nerve

19

Signs/Risks of Scaphoid Fracture

-snuff box pain after fall onto outstretched hand
-risk of avascular necrosis

20

What structures pass under the sup. mesentaric artery at it's bifurcation with the aorta?

-left renal vein
-transverse duodenum (may be occluded with rapid weight loss)

21

What nerve innervates sensation over the suprapubic area and motor to the anterolateral abdominal wall muscles?

-iliohypogastric nerve
-may be damaged with abdominal surgery like an appendectomy

22

S2, S3, S4 innervate?

-pelvic floor muscles
-S2-S4 keep the pee pee off the floor

23

Annular Pancreas

-head of pancreas wraps around descending portion of duodenum