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Anatomy > Lecture 29 (16-7-14) > Flashcards

Lecture 29 (16-7-14) Flashcards

1
Q

What are the parts of the tibia?

A
  • 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
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2
Q

What are the parts of the fibula?

A
  • 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
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3
Q

What are the parts of the tibiofibular joints?

A
  • 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
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4
Q

What are the fasciae and retinacula of the ankle

A
  • 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
Q

What is the fascial compartments of the leg?

A
  • Anterior: Anterior intermuscular septum
  • Lateral: Posterior intermuscular septum
  • Posterior:
    • ​Superior: Transverse intermuscular septum
    • Deep: interosseois membrane
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6
Q

What are the cutaneous nerves of the leg?

A

Sural n F/ common fib and tibular

saphenous n (f/ fibular)

superficial fibular n (from common fibular)

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7
Q

What is the innervation of the leg?

A
  • 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
Q

What are the arteries of the leg?

A

From popliteal a.

  • Anterior leg anterior tibial
  • Lateral leg fibular (peroneal) a.
  • Posterior leg posteior tibial a
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9
Q
  1. What are the muscles of the anterior compartment of the leg.
  2. What actions do they do?
  3. What is the nerve supply?
A
  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)
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10
Q
  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?
A
  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
Q
  1. What is this muscle?
  2. What is its insertion and orgin
  3. What is its innervation?
  4. What is its action?
A
  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
Q
  1. What is this muscle?
  2. What is its insertion and orgin
  3. What is its innervation?
  4. What is its action?
A
  1. Extensor hallicous longus
  2. anterior fibular, im–> distal phalenx of great toes
  3. deep femoral
  4. dorsi flex, extend great toe
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13
Q

Fibularis tertius

  1. What is its insertion and orgin
  2. What is its innervation?
  3. What is its action?
A
  1. fibula, im–> 5th metatarsal
  2. deep fibular (L4-S1)
  3. dorsiflexes everts the foot
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14
Q

What are shin spints and why do they happen?

A

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

mild for of anterior compartment syndrome

strain

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15
Q
  1. What are the muscles of the lateral leg?
  2. What do they do?
  3. What is the nerve supply?
A
  1. fibularis longus, fibularis brevis
  2. Everters of the foot
  3. superficial fibular (L5-S2)
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16
Q
  1. What is this muscle?
  2. What is its insertion and orgin?
  3. What is its innervation?
  4. What is its action?
A
  1. Fibularis longus
  2. head, superiorlateral fibula–> base of 1st meta carble; medial cuniform
  3. suprfical fibular nerve (L5-S2)
  4. everts foot
17
Q
  1. What is this muscle?
  2. What is its insertion and orgin?
  3. What is its innervation?
  4. What is its action?
A
  1. fibularis brevis
  2. lateral fiula–> 5th metatarsal
  3. superfical fibular (L5-S2)
  4. evert food
18
Q

What is drop foot?

A

injury to common fibular nerve

goes around fibular neck

vonurable with fibular neck fractures or direct trauma.

sits in plantar flexion and inverters

19
Q
  1. What are the muscles of the posterior leg?
  2. What are the actions?
  3. Waht is the nerve?
A
  1. Superior:
    • ​​gastrochnemius
    • solues
    • plantaris
  • Deep:
    • Flexor digitourm longus
    • Flexor hallicus longus
    • popliteal
    • fibularis posterior
  1. Plantar flexors and inverter of the foot
  2. Tibial nerve (L4-S3)
20
Q

GAstrochnemius

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

Plantaris

  1. What is its insertion and orgin
  2. What is its innervation?
  3. What is its action?
A
  1. lateral supracondylar line–> posterior calcaneous
  2. tibular (L4-S3)
  3. flex knee, plantar flex foot
22
Q

Soleus

  1. What is its insertion and orgin?
  2. What is its innervation?
  3. What is its action?
A
  1. fibula, soleal line of tibia–> posterior calcaneuos
  2. tibial nerve (L4-S3)
  3. plantarflexes foot,steadies leg on foot
23
Q

Why do ruptured calcaneal tendons happen?

A

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

24
Q

Calcaaneal bursa

A
  • subcutaneous
  • retrocalcalcaneal--> painful by
25
Q

What passes through the tarsal tunnel?

A

Tom tibial posterior m

Dick flexor digitorum longus

**Bloody **posterior tibial a

**Nerves **tibial n

Harry flexor hallicus longus m

26
Q

Tibalis posterior

  1. What is its orgin and insertion?
  2. What is the innervation?
  3. What is the action?
A
  1. fibula, tibula, im–> medail mellasous, tarsal bones, bases of 2-4 mt
  2. tibial nerve (L4-S3)
  3. plantar flex, invert
27
Q
  1. What is this muscle? (left)
  2. What is its orgin and insertion?
  3. What is the innervation?
  4. What is the action?
A
  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
Q
  1. What is this muscle? (left)
  2. What is its orgin and insertion?
  3. What is the innervation?
  4. What is the action?
A
  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
Q

Popliteus

  1. What is its orgin and insertion?
  2. What is the innervation?
  3. What is the action?
A
  1. lateral femora condyle–> tibia
  2. Tibial n (L4-S3)
  3. unlock knee, lateral rotate femus
30
Q

What is exertional compartment syndrome.

A

pressure build up in compartmetn becuase of fassa limitatations and overuse

Anatomy (10 decks)

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