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Anatomy NWHSU > Lower Extremity (lecture/lab) > Flashcards

Lower Extremity (lecture/lab) Flashcards

1
Q

What Limits Expansion of muscle, increase muscle efficiency, promotes return of Venus blood.

A

Deep / Investing Fascia

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2
Q

Name the four compartments of innervation

A

Anterior, Posterior, Medial, Lateral

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3
Q

What is the innervation of the posterior thigh muscles? (Except the short head-biceps femoris)

A

Sciatic nerve-tibial division OR tibial nerve

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4
Q

The the Iliotibial tract of the fascia lata has a shared aponeurosis with what two areas of the body?

A

Gluteus Maximus, Tensor Fascial Lata (TFL)

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5
Q

What posterior thigh muscle is the most superficial?

A

Semitendinosus

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6
Q

What is the action and innervation of the biceps femoris (short head)?

A

Action: Knee flexion
Innervation: Common fibular division

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7
Q

What is the most posterior of the posterior thigh muscles?

A

Semimembranosus

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8
Q

List the muscles of the inferior posterior leg from superficial to deep.

A

Gastrocnemius, Plantaris, Soleus, Popliteus, Tibialis Posterior, Flexor digitorum Longus & Flexor Hallicus Longus

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9
Q

What posterior thigh muscles insert into the pes anserine?

A

-Sartorius
-Gracilis
-Semitendinosus

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10
Q

Biceps Femoris LH origin

A

ischial tuberosity

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11
Q

Biceps Femoris LH insertion

A

head of fibula

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12
Q

Biceps Femoris LH actions

A

knee flexion
rotation of tibia (when knee is flexed)

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13
Q

Biceps Femoris LH innervation

A

sciatic nerve tibial division

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14
Q

Biceps Femoris (LH & SH) artery

A

deep femoral artery

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15
Q

Biceps Femoris SH origin

A

linea aspera

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16
Q

Biceps Femoris SH insertion

A

head of fibula

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17
Q

Biceps Femoris SH actions

A

knee flexion
rotation of tibia (when knee is flexed)

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18
Q

Biceps Femoris SH innervation

A

common fibular nerve

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19
Q

What muscles contribute to posterior pelvic tilt?

A

Hamstring, gluteus maximus, adductor Magnus

20
Q

What is the origin of the hamstrings?
(With exception of the BF short head)

A

Ischial Tuberosity

21
Q

What muscles insert at the pes anserine?
(proximal, medial, anterior tibial shaft)

A

Sartorius, gracilis, Semitendinosus

22
Q

What arteries innnervate the hamstrings?

A

Deep femoral artery (proximally) and popliteal artery (distally)

23
Q

What nerves innervation the hamstrings?

A

Sciatic nerve, Tibial division [L4-S3] <—Sacral Plexus [L4-S4]

24
Q

What actions do the hamstrings carry out?

A

Knee Flexion, Hip Extension (with exception of BF SH)

25
Q

Insertion of the Semimembranosus

A

Posterior Medial Condyle (Tibia); Medial Meniscus

26
Q

What is the insertion of the Biceps Femoris?

A

Fibular Head

27
Q

What nerve innervation the Biceps Femoris-SH?

A

Common Fibular Nerve (Sciatic Nerve [L4-S2], Fibular Division)

28
Q

What is the origin of the Biceps Femoris-SH?

A

Linea Aspera

29
Q

What arteries innervate the quadriceps muscles?

A

Lateral Femoral Cutaneous Artery<—Femoral Artery

30
Q

What nerves innervate the quadriceps?

A

Femoral Nerve [L2-L4]<—Lumbar Plexus [T12-L4]

31
Q

*What is the insertion of the iliopsoas?

A

Lesser Trochanter

32
Q

*What is the origin of the psoas major?

A

T12 vertebral body; L1-L5 IVD, Vertebral Bodies & Transverse Processes

33
Q

*What is the origin of the iliacus?

A

Iliac crest & Fossa; Anterior SI Ligaments

34
Q

What is the origin of the vastus lateralis?

A

Femoral greater trochanter & Linea Aspera (upper lateral lip)

35
Q

What is the role of the tensor vastus intermedius?

A

Increases the contractile efficiency of the quad muscles

36
Q

What is the origin of Sartorius?

A

ASIS

37
Q

What is the origin of rectus femoris?

A

AIIS

38
Q

What makes the rectus femoris different than all the other quadriceps muscles?

A

Is crosses two joints: both the knee and hip

39
Q

What is the purpose of the articularis genu?

A

Pulls suprapatellar bursa out of the way, allowing for complete knee extension

40
Q

What artery innervates the adductors?

A

Obturator artery

41
Q

What nerve innervates the adductors?

A

Obturator Nerve [L2-L4]<—Lumbar Plexus

42
Q

Where does the gracilis originate?

A

Inferior Pubic Symphysis

43
Q

Where does the pectineus originate?

A

Superior ramus of pubis

44
Q

Where does the pectineus insert?

A

Femoral pectineal line

45
Q

What is significant about the nerves that innervates the pectineus?

A

Innervates the femoral nerve 2/3 of the time and the Obturator nerve 1/3 of the time

Anatomy NWHSU (8 decks)

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