Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

MSK-1 > Anterior and Lateral Leg > Flashcards

Anterior and Lateral Leg Flashcards

1
Q

What does the anterior tibial artery arise from?

When does it begin

A

popliteal artery

tibial tuberosity demarcates division of anterior and post tibial arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are shin splints due to?

A

repetitive microtrama to tibialis Anterior m –> small tears to periosteum over tibia/tears to overlying fascia
mild form of compartment syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How does the deep fibular nerve end?

A

medial and lateral terminal branches on dorsum of foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the attachments of fibularis brevis m.?

A

proximal: inferolateral 2/3 of tibia
- -> goes posterior to lateral malleolus
distal: dorsal surface of tuberosity on fifth metatarsal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the function of the extensor retinaculum?

A

prevents bowstringing during dorsiflexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What artery connects the cruciate anastomosis to the genicular anastomosis?

A

descending branch of lateral circumflex femoral a

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the actions of extensor digitorum longus m?

A

extends lateral 4 digits

dorsiflexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the attachments of fibularis longus m.?

A

proximal: head and superolateral 2/3 of fibula
- -> goes posterior to lateral malleolus
distal: (makes sling under foot) first MT and medial cuneiform

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the actions of fibularis tertius?

A

dorsiflexion

eversion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the attachments of fibularis tertius?

A

proximal: anteroinferior fibular surface
distal: dorsum of fifth metatarsal base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the attachments of tibialis anterior?

A

lateral tibial condyle and superolateral 1/2 of tibia

medial surface of 1st cuneiform and 1st metatarsal base

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the nerve in the anterior compartment?

A

Deep fibular nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the only cutaneous innervation of the deep fibular N?

A

skin betwen first and second toes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What two muscles do the deep fibular nerve and anterior tibial artery run between?

A

EHL and TA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the cutaneous innervations of the superficial fibular nerve?

A

anteroinferior leg
dorsal foot except btwn 1st and 2nd toes
most of dorsal skin of toes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the contents of the lateral crural compartment?

A

fibularis brevis m
fibularis longus m
superficial fibular n

17
Q

On what bone is the groove for fibularis longus?

A

5th metatarsal

18
Q

What do structures in compartments share?

A

same general function
nerve
artery and vein

19
Q

What are the borders of the lateral crural compartment?

A

antero-medial border = anterior septum

posterior border = posterior septum

20
Q

What are the borders of the anterior compartment

A 
anterior = deep fascia
lateral = anterior septum
posterior = interosseous membrane
medial = tibia
21
Q

What are the actions of fibularis longus m?

A

eversion and planar flexion

22
Q

What are the attachments of extensor hallucis longus m?

A

Proximal: anteromedial fibular surface and interosseous membrane; medial to distal half of proximal att of EDL
Distal: base of distal phalanx of hallux

23
Q

What artery supplies the lateral compartment?

A

fibular A

24
Q

What are the functions of extensor hallucis longus?

A

extend hallux

dorsiflex ankle

25
Q

What are the muscles of the anterior compartment?

A

tibialis anterior
extensor hallucis longus
extensor digitorum longus
fibularis tertius

26
Q

What does the fibular a arise from?

A

fibular a is largest branch of posterior tibial A

27
Q

What does damage to the common fibular n cause?

A

paralysis of all anterior and lateral crural ms –> loss of dorsiflexion and eversion –> drop foot = high stepping gate
loss of sensation along anterolateral leg and dorsum of foot

28
Q

What is the most commonly injured lower extremity n?

A

common fibular N

winds superficially around fibular head

29
Q

What are the actions of tibialis anterior m?

A

dorsiflexion and inversion of foot

30
Q

How does the extensor expansion divide?

A

lateral 4 digits
one central slip on middle phalanx
2 lateral slips on distal phalanx

31
Q

What are the attachments of extensor digitorum longus m?

A

Lateral tibial condyle; anterior fibular surface; interosseous membrane
extensor expansion –> 2 lateral slips on distal phalanx
1 central slip on middle phalanx
lateral 4 digits

32
Q

What are the parts of the extensor retinaculum?

A

superior extensor retinaculum = horizontal

inferior extensor retinaculum = looks like a Z

33
Q

What is crural (leg) fascia

A

deep fascia of leg continuous w/ fascia lata

thickens distally to form extensor retinaculum

MSK-1 (28 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions