Lecture 29 (16-7-14) Flashcards Preview

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Flashcards in Lecture 29 (16-7-14) Deck (30):
1

What are the parts of the tibia?

  • Weight bearing 
  • medial condyle
  • lateral condyle
    • proximal tibfib joint
    • tibialis anterior 
    • extensor digirotum longus
  • tibial tuberosity
    • petellar ligament/tendon (i)
  • anterior crest ("shin")
  • interosseous border
    • tibialis anterior
    • extensor digitorum longus
    • extensor hallicus longus
    • tibalis posterior 
  • medial malleolus
  • soleal line
    • solues
  • intercondylar eminence
  • Tibial platue
  • lateral part- tibialis anterior 

2

What are the parts of the fibula?

 

  • Non-weight bearing 
  • Head of fibula
    • biceps femorus  (Insetrion)
    • fibularis longus
    • proximal tibfib joint 
  • neck of fibula 
  • lateral malleolus 

muscles 

  • soleus
  • externsor hallicul longus
  • extensor digitorum longus 
  • fibularis brexis 
  • flexor digitorum longus 
  • tibialis posterior 

3

What are the parts of the tibiofibular joints?

  • Superior (proximal tibiofibular joint)
    • plane synovial 
    • articulation- head of fibular--> lateral tibial condylear
    • ligaments ant and post. superior tibiofibular lige
  • Interosseous membrane
    • intermediante tibifib joint
    • syndesmosis joint 
  • inferior (distal) tibiofibular joint
    • continuation of innerossesour membrane
    • syndesmosis fibrous joint 
    • anterior and posterior inferior tibial fibular ligaments 
    • inferior transverse lighametn( helps stabalize between disal tibia and fibula 

4

What are the fasciae and retinacula of the ankle

  • Superior and inferior retinacula
    • hold down anterior leg (extenor) tendons
    • inverters
  • superior and inferior fibular retinacula 
    • lateral 
    • hold down lateral leg tendons 
    • evertors
  • flexor retinaculum 
    • hold down deep posterior leg muscles
    • flexors

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5

What is the fascial compartments of the leg?

  • Anterior:  Anterior intermuscular septum 
  • Lateral: Posterior intermuscular septum 
  • Posterior:
    • ​Superior: Transverse intermuscular septum
    • Deep: interosseois membrane

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6

What are the cutaneous nerves of the leg?

Sural n F/ common fib and tibular

saphenous n (f/ fibular)

superficial fibular n (from common fibular)

 

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7

What is the innervation of the leg?

  • Lateral leg
    • ​​​​superfical fubular (L5-S2)
  • common fibular n (L5-S2) 
  • Anterior leg
    • Deep fibular (L4-S1)
  • Posterior Leg
    • Tibial Nerve (L4-S3)

       

 

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8

What are the arteries of the leg?

From popliteal a. 

  • Anterior leg anterior tibial 
  • Lateral leg fibular (peroneal) a.
  • Posterior leg posteior tibial a 

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9

  1. What are the muscles of the anterior compartment of the leg.
  2. What actions do they do?
  3. What is the nerve supply? 

  1.   muscles
    • Extensory digitorum longus
    • Extensor halliculs longus
    • Tibialis anterior
    • Fibulars Tertius
  2. dorsiflexors (extensors) and inverter of the foot
  3. deep fibular n  (L4-S1)

10

  1. What is this muscle? (second from the left)
  2. What is its insertion and orgin
  3. What is its innervation?
  4. What is its action?

Q image thumb

  1. tibialis anterior
  2. lateral tib condyle, lat tibia, im--> medial cuneiform, base of 1st metarsal 
  3. deep fibular nerve
  4. dorsiflexes and inverts foot

over use can cause shin splints

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11

  1. What is this muscle?
  2. What is its insertion and orgin
  3. What is its innervation?
  4. What is its action?

Q image thumb

  1. Extensor digitorum longus 
  2. lateral tibia condly, fibula, IM--> extensor expansion of digits 2-5
  3. deep fibular  (L4-S1)
  4. Dorsiflex foot, extend 2-5

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12

  1. What is this muscle?
  2. What is its insertion and orgin
  3. What is its innervation?
  4. What is its action?

Q image thumb

  1. Extensor hallicous longus 
  2. anterior fibular, im--> distal phalenx of great toes
  3. deep femoral 
  4.  dorsi flex, extend great toe

13

Fibularis tertius

  1. What is its insertion and orgin

  2. What is its innervation?

  3. What is its action?








     

  1. fibula, im--> 5th metatarsal 
  2. deep fibular (L4-S1)
  3. dorsiflexes everts the foot 

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14

What are shin spints and why do they happen?

over work tibialis anterior--> and it pulls on the bone--> micro trauma 

mild for of anterior compartment syndrome

strain

15

  1. What are the muscles of the lateral leg?
  2. What do they do?
  3. What is the nerve supply?

  1. fibularis longus, fibularis brevis 
  2. Everters of the foot
  3. superficial fibular (L5-S2)

16

  1. What is this muscle?
  2. What is its insertion and orgin?
  3. What is its innervation?
  4. What is its action?

Q image thumb

  1.  Fibularis longus 
  2.  head, superiorlateral fibula--> base of 1st meta carble; medial cuniform 
  3. suprfical fibular nerve (L5-S2)
  4. everts foot

17

 

  1. What is this muscle?
  2. What is its insertion and orgin?
  3. What is its innervation?
  4. What is its action?

Q image thumb

  1. fibularis brevis
  2. lateral fiula--> 5th metatarsal
  3. superfical fibular (L5-S2)
  4. evert food 

18

What is drop foot?

injury to common fibular nerve

goes around fibular neck

vonurable with fibular neck fractures or direct trauma. 

sits in plantar flexion and inverters

19

  1. What are the muscles of the posterior leg?
  2. What are the actions?
  3. Waht is the nerve?

  1. Superior:
    • ​​gastrochnemius
    • solues
    • plantaris
  • Deep:
    • Flexor digitourm longus
    • Flexor hallicus longus
    • popliteal
    • fibularis posterior 

2.Plantar flexors and inverter of the foot

3. Tibial nerve (L4-S3)

20


GAstrochnemius

  1. What is its insertion and orgin
  2. What is its innervation?
  3. What is its action?








     

  1. medail head (medial femoral condyle) lateral head (lateral femoral condyle)--> achilles tendon 
  2. tibial  nerve (L4-S3)
  3. flexes knee plantar flex-foot

superfical group triceps surae

21

Plantaris

  1. What is its insertion and orgin
  2. What is its innervation?
  3. What is its action?

  1. lateral supracondylar line--> posterior calcaneous 
  2. tibular (L4-S3)
  3.   flex knee, plantar flex foot

22

Soleus 

  1. What is its insertion and orgin?

  2. What is its innervation?

  3. What is its action?

  1. fibula, soleal line of tibia--> posterior calcaneuos
  2. tibial nerve (L4-S3)
  3. plantarflexes foot,steadies leg on foot

23

Why do ruptured calcaneal tendons happen?

forceful push-off (plantar felxion with knee extended knee)

 

24

Calcaaneal bursa

  • subcutaneous
  • retrocalcalcaneal--> painful by 

25

What passes through the tarsal tunnel?

Tom tibial posterior m

Dick flexor digitorum longus

Bloody posterior tibial a

Nerves tibial n

Harry flexor hallicus longus m 

26

Tibalis posterior 

  1. What is its orgin and insertion?
  2. What is the innervation?
  3. What is the action?

  1. fibula, tibula, im--> medail mellasous, tarsal bones, bases of 2-4 mt
  2. tibial nerve (L4-S3)
  3. plantar flex, invert

27

  1. What is this muscle? (left)
  2. What is its orgin and insertion?
  3. What is the innervation?
  4. What is the action?

Q image thumb

  1. flexor digitourm longus
  2. tibia, fibula --> distal phalex of digits 2-5
  3. tibial n (L4-S3)
  4. plantarflexes foot, flexes toes 2-5
  5. supports archs

28

  1. What is this muscle? (left)

  2. What is its orgin and insertion?

  3. What is the innervation?

  4. What is the action?

Q image thumb

  1. flexor hallucis longus
  2. fibula--> distal phalnaex of great toes, plantar groove
  3. tibial nerve (L4-S3)
  4. plantar flex big toe/push off muscle 

GROOVE IS GREAT TO TAG!!

29

Popliteus 

  1. What is its orgin and insertion?
  2. What is the innervation?
  3. What is the action?

  1. lateral femora condyle--> tibia
  2. Tibial n (L4-S3)
  3. unlock knee, lateral rotate femus 

30

What is exertional compartment syndrome. 

pressure build up in compartmetn becuase of fassa limitatations and overuse