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Human Anatomy Exam #3 > Compartment Rules of LEs > Flashcards

Compartment Rules of LEs Flashcards

1
Q

General rules for posterior compartment of thigh (O, N, A)

A

Posterior Compartment (thigh)

  • O: Ischial tuberosity
  • N: Tibial n.
  • A: Extend hip, flex knee
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2
Q

What is the one exception (2) to the rules of the posterior compartment of thigh?

A

Biceps Femoris, short head

  • N: Common Fibular n.
  • A: Flex knee only
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3
Q

General rules for anterior compartment of thigh (N (1 motor and 2 sensory), A)

A

Anterior Compartment (thigh)

  • N (motor): Femoral n.
  • N (sensory): Anterior cutaneous branches, Saphenous
  • A: Flex hip, extend knee
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4
Q

What are the two exceptions (1, 2) to the rules of the anterior compartment of thigh?

A

Sartorius
- A: Flex, abduct and laterally rotate hip, and flex knee

Pectineus

  • N: Femoral n. AND branch of Obturator n.
  • A: Flex hip, adduct hip
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5
Q

General rules for medial compartment of thigh (O, N, A)

A

Medial Compartment (thigh)

  • O: Pubis
  • N: Obturator n.
  • A: Adduct hip
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6
Q

What are the three exceptions (2, 1, 1) to the rules of the medial compartment of thigh?

A

More posteromedial 1/2 of Adductor Magnus (other 1/2 follows normal medial compartment rules)

  • N: Tibial n.
  • A: Extend hip only

Gracilis
- A: Adduct hip, flex knee

Obturator Externus
- A: Laterally rotate hip only

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7
Q

What is the arterial blood supply of the posterior compartment of thigh (2)?

A
  • Deep a. of the thigh (branches into perforating aa.)

- Obturator a.

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8
Q

What is the arterial blood supply of the anterior compartment of thigh (2)?

A
  • Femoral a.

- Deep a. of the thigh

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9
Q

What is the arterial blood supply of the medial compartment of thigh (3)?

A
  • Femoral a.
  • Deep a. of the thigh
  • Obturator a.
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10
Q

What is the venous blood supply of the posterior compartment of thigh? What does it drain into (2)?

A

Deep v. of thigh
- Drains into Femoral v. > External Iliac v.

AND

Obturator v.
- Drains into Internal Iliac v.

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11
Q

What is the venous blood supply of the anterior compartment of thigh? What does it drain into (2)?

A

Deep v. of thigh

- Drains into Femoral v. > External Iliac v.

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12
Q

What is the venous blood supply of the medial compartment of thigh?

A

Deep v. of thigh
- Drains into Femoral v. > External Iliac v.

AND

Obturator v.
- Drains into Internal Iliac v.

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13
Q

General rules for posterior DEEP compartment of leg (N (1 motor and 1 sensory), A)

A

Posterior DEEP Compartment (leg)

  • N (motor): Tibial n.
  • N (sensory): Sural n.
  • A: Plantarflex ankle, flex toes
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14
Q

What are the two exceptions (1, 1) to the rules of the posterior DEEP compartment of leg?

A

Tibialis Posterior
- Plantarflex ankle, invert foot

Popliteus
- A: Laterally rotate knee

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15
Q

General rules for posterior SUPERFICIAL compartment of leg (N (1 motor and 1 sensory), A)

A

Posterior SUPERFICIAL Compartment (leg)

  • N (motor): Tibial n.
  • N (sensory): Sural n.
  • A: Plantarflex ankle
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16
Q

What is the one exception (1) to the rules of the posterior SUPERFICIAL compartment of leg?

A

Gastrocnemius

- A: Plantarflex ankle, flex knee

17
Q

General rules for anterior compartment of leg (N (1 motor and 1 sensory), A)

A

Anterior Compartment (leg)

  • N (motor): Deep fibular n.
  • N (sensory): Deep fibular n.
  • A: Dorsiflex ankle, extend toes
18
Q

What are the two exceptions (1, 1) to the rules of the anterior compartment of leg?

A

Tibialis Anterior
- A: Dorsiflex ankle, invert foot

Fibularis Tertius
- A: Dorsiflex ankle, evert foot

19
Q

General rules for lateral compartment of leg (N (1 motor and 1 sensory), A)

A

Lateral Compartment (leg)

  • N (motor): Superficial fibular n.
  • N (sensory): Superficial fibular n.
  • A: Plantar flex ankle, evert foot
20
Q

Are there any exceptions to the lateral compartment of leg?

A

NOPE :)

21
Q

What is a general rule for naming the foot inventor and foot evertor muscles?

A
  • Foot inventors have “Tibialis” in their name

- Foot evertors have “Fibularis” in their name

22
Q

What are the two motor/sensory nerves of the plantar foot? From what nerve do they originate?

A

Tibial n. exits the Tarsal Tunnel and splits into:

  • Medial Plantar n.
  • Lateral Plantar n.
23
Q

Which four muscles receive motor innervation from the Medial Plantar n.? What are the two areas that receive sensory innervation?

A

Motor:

  • Abductor Hallucis
  • Flexor Hallucis Brevis
  • Flexor Digitorum Brevis
  • Lumbrical 1

Sensory:

  • Medial aspect of sole of foot
  • Tips and plantar aspects of medial 3 1/2 digits
24
Q

Which six muscles are innervated by the Lateral Plantar n. (2 are groups)? What are the two areas that receive sensory innervation?

A

Motor:

  • Adductor Hallucis
  • Quadratus Plantae
  • Flexor Digiti Minimi Brevis
  • Adductor Digiti Minimi
  • Lateral 3 Lumbricals
  • All Interossei

Sensory:

  • Lateral aspect of sole of foot
  • Tips and plantar aspect of lateral 1 1/2 digits
25
Q

What are the two arteries of the plantar foot? Which artery do they originate from and what branches do they each give off (2, 3)? Which artery supplies most of the blood of the plantar foot?

A

Posterior Tibial a. splits into:
Medial Plantar a.
- Plantar digital aa.
- Superficial plantar arch

Lateral Plantar a. (supplies most blood of plantar foot)

  • Plantar digital aa.
  • Plantar metatarsal aa.
  • Deep plantar arch
26
Q

What is the venous blood supply of the plantar foot (deep versus superficial)? What do they drain into (2)?

A
  • Deep: accompany aa. and share same names; drain into Fibular v. and Posterior Tibial v.
  • Superficial: drain into Small saphenous v. and Great Saphenous v.
27
Q

What is the arterial blood supply of the dorsal foot? Which artery does it originate from and what branches does it give off (3)?

A

Anterior Tibial a. becomes the Dorsalis Pedis a. - branches into:

  • Arcuate a.
  • Dorsal Metatarsal aa.
  • Dorsal Digital aa.
28
Q

What is the arterial blood supply of the dorsal foot? Which artery does it originate from and what branches does it give off (3)?

A

Anterior Tibial a. becomes the Dorsalis Pedis a. - branches into:

  • Arcuate a.
  • Dorsal Metatarsal aa.
  • Dorsal Digital aa.
29
Q

What is the venous blood supply of the dorsal foot (deep versus superficial)? What does the superficial dorsal foot drain into (2)?

A
  • Deep: accompany aa. and share same names

- Superficial: Dorsal venous arch drains medially into Great Saphenous v. or laterally into Small Saphenous v.

Human Anatomy Exam #3 (7 decks)

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