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Anatomy Exam '23 > Neurovasculature > Flashcards

Neurovasculature Flashcards

1
Q

what are the landmarks of the cubital fossa?

A

Boundaries – line joining epicondyles, brachioradialis, pronator teres
Roof – deep fascia
Floor – brachialis, supinator
Contents – tendon of biceps, brachial artery, median nerve (lateral to medial)

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2
Q

what does the musculocutaneous nerve supply?

A

C5,6,7) arm, anterior (flexor) compartment

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3
Q

what does the median nerve supply?

A

– (C5,6,7,8,T1) forearm, anterior (flexor) compartment; intrinsic muscles of hand

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4
Q

what does the ulnar nerve innervate?

A

(C8,T1) – forearm, anterior (flexor) compartment; intrinsic muscles of hand

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5
Q

what is the general arrangement of the brachial plexus?

A

Roots / trunks / divisions / cords

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6
Q

What does the radial nerve innervate?

A

(C5,6,7,8,T1) - arm and forearm, posterior (extensor) compartments

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7
Q

what does the axillary nerve innervate?

A

C5,6 - deltoid, teres minor

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8
Q

where are the roots of the brachial plexus located?

A

behind scalenus anterior

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9
Q

where are the trunks of the brachial plexus located?

A

in posterior triangle of neck

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10
Q

where are the divisions of the brachial plexus located?

A

behind clavicle

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11
Q

where are the cords of the brachial plexus located?

A

clasping 2nd part of axillary artery, behind pectoralis minor, named accordingly

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12
Q

what are the names of the 3 branches off the root nerves superior to inferior?

A

off C5 = dorsal scapular nerve , C5+C6 = nerve to subclavius , C5 + C6 + C7 = long thoracic nerve

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13
Q

what is the name of the branch off the superior most trunk of the brachial plexus?

A

suprascapular

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14
Q

what nerve branches off the lateral and medial cord

A

Lateral pectoral nerve

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15
Q

what nerves branch off the medial cord?

A

medial pectoral nerve
medial cutaneous nerve of arm
medial cutaneous nerve of forearm

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16
Q

what nerves branch off the posterior cord?

A

Upper subscapular nerve
thoracodorsal
lower subscapular nerve

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17
Q

What branches terminate off the posterior cord? (Superior to inferior)

A

Axillary nerve , radial nerve

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18
Q

what branches terminate off the lateral cord?

A

musculocutaneous nerve, lateral root of median nerve

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19
Q

what branches terminate off the medial cord?

A

ulnar nerve, medial root of median nerve

20
Q

What do the lateral root and medial root of the median nerve join to?

A

Median nerve

21
Q

Trace the major arteries of the lower limb (listed below) from the origin of the femoral artery
to the plantar arch (foot). Where does each artery begin and end?

A

Femoral / popliteal / ant. tibial & dorsalis pedis / post. tibial & plantar arch / peroneal

22
Q

Ensure that you can locate the important pulses of the lower limb on yourself. Check with a
demonstrator.

A

Femoral in groin (practice at home!) / popliteal (difficult) / dorsalis pedis / posterior tibial

23
Q

Popliteal fossa
Identify the boundaries, roof, floor, contents and relationships.

A

Boundaries – hamstrings, heads of gastrocnemius
Roof – deep fascia
Floor – popliteal surface of femur, capsule of knee joint, popliteus
Contents – tibial & com. peroneal nerves, popliteal vein, popliteal artery (supf. to deep)

24
Q

For each compartment of the thigh and leg (listed below) identify the associated nerve(s).
What is the root values of each nerve? What muscles do they supply?

A

Thigh – anterior, posterior and medial (adductor) compartments
Leg – anterior, posterior and lateral (peroneal) compartments

25
Q

where does the popliteal artery start and end?

A

Note: the popliteal artery extends from the hiatus in adductor magnus to the lower border
of popliteus.

26
Q

What nerve innervates the medial compartment of the thigh?

A

the medial (adductor) compartment is innervated by the Obturator (L2,3,4)

27
Q

What nerve innervates the anterior compartment of the thigh?

A

the anterior (Extensor) compartment is innervated by the Femoral nerve (L2,3,4)

28
Q

What nerve innervates the posterior compartment of the thigh?

A

the posterior (flexor) compartment is innervated by the sciatic nerve (L4,5,S1,2,3)

29
Q

What nerve innervates the posterior compartment of the leg?

A

The posterior (flexor) compartment of the leg is innervated by the tibial (L4,4,S1,2,3)

30
Q

What nerve innervates the anterior compartment of the leg?

A

the anterior (extensor) compartment of the leg is innervated by the deep peroneal (L4,5,S1,2) nerve

31
Q

What nerve innervates the lateral compartment of the leg?

A

The lateral (peroneal) compartment of the leg is innervated by the superficial peroneal (L4,5,S1,2)

32
Q

what does c5, 6 7 (8) do at the shoulder?

A

C5 lifts the arm, 67(8) lowers it

33
Q

what does c5 6 , 7 (8) do at the elbow?

A

C5 6 lifts the arm , c7 8 lowers the arm

34
Q

what nerves supinate the hand?

A

c6

35
Q

what nerves pronate the hand?

A

c7,8

36
Q

what nerves lift the hand?

A

C6,7

37
Q

What nerves lower the hand?

A

c6, 7

38
Q

what nerves move the fingers laterally?

A

T1

39
Q

what nerves raise and lower the finger?

A

c 78

40
Q

what does the axillary nerve supply?

A

Deltoid and teres minor

41
Q

what does the musculocutaneous nerve supply?

A

Arm: anterior compartment

42
Q

what does the radial nerve supply?

A

posterior compartment of arm and forearm

43
Q

what does the median nerve supply?

A

anterior forearm

44
Q

what does the ulnar nerve supply?

A

intrinsic muscles of the hand

45
Q

what happens if the T1 dermatome and myotome is lost?

A

dermatome = inner arm , myotome = claw hand

46
Q

what happens if there is an injury to the surgical neck of the humerus?

A

numbness of upper arm, weakness of shoulder abduction

Anatomy Exam '23 (14 decks)

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