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Msak Tutorial Op 1 > OP2 > Flashcards

OP2 Flashcards

1
Q

Rectus Abdominus origin, insertion, innervation, action, Palpation

A

Origin
Pubic Crest and Pubic Symphysis of Pubis

Insertion
Cartilages of 5th, 6th and 7th ribs and Xiphoid process

Innervation
Intercostal N

Action
Flexion of Trunk @ Vertebral column
Posterior Tilt of Pelvis
Compression of the abdominal wall

Palpation

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2
Q

External Oblique origin, insertion, innervation, action, Palpation

A

Origin
Anterior portion of iliac crest, pubic bone and abdominal aponeurosis

Insertion
Lower 8 ribs (#5-12)

Innervation
Intercostal Nerves

Action
Unilateral: contralateral rotation of trunk/vertebral column
Lateral flexion of the trunk
Example: If doing a rotating sit-up, your left external obliques will contract to move your trunk towards your right knee.
Bilateral: aids rectus abdominis with flexion of trunk/vertebral column, and posteriorly tilts the pelvis
Compresses the abdominal contents

Palpation

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3
Q

Internal Oblique origin, insertion, innervation, action, Palpation

A

Origin
Anterior portion of iliac crest, inguinal ligament, thoracolumbar fascia

Insertion
Last 3 ribs and abdominal aponeurosis

Innervation
Intercostal Nerves

Action
Unilateral: ipsilateral rotation of trunk/vertebral column
 Ipsilateral lateral flexion of trunk/vertebral column
 Example: If doing a rotating sit-up, your left internal obliques will contract to move your trunk towards your left knee
 Bilateral: aids rectus abdominis with flexion of trunk/vertebral column and posterior tilt of the pelvis
 Compresses the abdominal contents

Palpation

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4
Q

Erector Spinae Group origin, insertion, innervation, action, Palpation

A

Origin
Pelvis

Insertion
Spine, Ribcage, and the head (Mastoid Process)

Innervation
Dorsal Rami of the Corresponding Levels (Spinal Nerves)

Action
 Extension of the trunk/vertebral column
 Ipsilateral rotation of the trunk
 Lateral flexion of the trunk
 Anteriorly tilts the pelvis

Palpation

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5
Q

Quadratus Lumborum origin, insertion, innervation, action, Palpation

A

Origin
Transverse processes of L1-L4 and 12th rib

Insertion
Posterior portion of iliac crest & Iliolumbar ligament

Innervation
Lumbar Plexus

Action
 Unilateral: Side flexion (lateral flexion) of the trunk/vertebral column or
elevation of the same side pelvis
 Bilateral: Aids in extension of the trunk/vertebral column
 Anteriorly tilts the pelvis
 Depression of the 12th rib

Palpation

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6
Q

Anterior Scalene origin, insertion, innervation, action, Palpation

A

Origin
Transverse Processes of C3-6

Insertion
Scalene Tubercle of Rib 1

Innervation
Ventral Rami of the Cervical Nerves

Action
 Flexes the Neck
 Laterally Flexes the Neck
 Elevates Rib 1

Palpation

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7
Q

Middle Scalene origin, insertion, innervation, action, Palpation

A

Origin
Transverse Processes of C2-7

Insertion
Rib 1

Innervation
Ventral Rami of the Cervical Nerves

Action
 Flexes the Neck
 Laterally Flexes the Neck
 Elevates Rib 1

Palpation

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8
Q

Posterior Scalene origin, insertion, innervation, action, Palpation

A

Origin
Transverse Processes of C5-7

Insertion
Rib 2

Innervation
Ventral Rami of the Cervical Nerves

Action
 Laterally Flexes the Neck
 Elevates Rib 2

Palpation

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9
Q

Gluteus Maximus origin, insertion, innervation, action, Palpation

A

Origin
Posterior Iliac Crest, the Posterolateral Sacrum,
the Coccyx and Sacrotuberous Ligament

Insertion
Iliotibial Band (ITB) and the Gluteal Tuberosity of
the Femur.

Innervation
Inferior Gluteal Nerve

Action
 Extends the Thigh at the Hip Joint
 Laterally Rotates the Thigh at the Hip Joint
 Abducts the Thigh at the Hip Joint (Upper 1/3)
 Adducts the Thigh at the Hip Joint (Lower 2/3)
 Posteriorly Tilts the Pelvis at the Hip Joint

Palpation

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10
Q

Gluteus Medius origin, insertion, innervation, action, Palpation

A

Origin
Ilium, Inferior to the Iliac Crest and between the
Anterior and Posterior Gluteal Lines

Insertion
The Greater Trochanter of the Femur

Innervation
Superior Gluteal Nerve

Action
Abducts the Thigh at the Hip Joint
 Flexes the Thigh at the Hip Joint (Anterior Fibers)
 Medially Rotates the Thigh at the Hip Joint
(Anterior Fibers)
 Extends the Thigh at the Hip Joint (Posterior
Fibers)
 Laterally Rotates the Thigh at the Hip Joint
(Posterior Fibers)
 Anteriorly Tilts the Pelvis at the Hip Joint (Anterior
Fibers)
 Posteriorly Tilts the Pelvis at the Hip Joint
(Posterior Fibers)

Palpation

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11
Q

Piriformis origin, insertion, innervation, action, Palpation

A

Origin
Anterior Sacrum and Anterior Surface of the
Sacrotuberous Ligament

Insertion
Greater Trochanter of the Femur

Innervation
Nerve to Piriformis (of Lumbrosacral Plexus)

Action
Laterally Rotates the Thigh at the Hip Joint

Palpation

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12
Q

Biceps Femoris origin, insertion, innervation, action, Palpation

A 
Origin
 Long Head – Ischial Tuberosity and
Sacrotuberous Ligament
 Short Head – Linea Aspera and Lateral
Supracondylar Ridge of Femur

Insertion
Head of the Fibula and Lateral Tibial Condyle

Innervation
Sciatic Nerve (Tibial–long head, common fibular–short head)

Action
 Flexes the Leg at the Knee Joint
 Extends the Thigh at the Hip Joint (Long Head)
 Posteriorly Tilts the Pelvis at the Hip Joint (Long
Head)
 Laterally Rotates the leg at Knee jnt (when knee
flexed)

Palpation

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13
Q

Semitendinosus origin, insertion, innervation, action, Palpation

A

Origin
Ischial Tuberosity

Insertion
Proximal part of medial surface of shaft of tibia
(forms Pes anserine tendon)

Innervation
Sciatic Nerve

Action
 Flexes the Leg at the Knee Joint
 Extends the Thigh at the Hip Joint
 Posteriorly Tilts the Pelvis at the Hip Joint
 Med. Rot. of leg at knee J. (When knee is flexed)

Palpation

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14
Q

Semimembranosus origin, insertion, innervation, action, Palpation

A

Origin
Ischial Tuberosity

Insertion
Medial Condyle to the Tibia (posterior surface)

Innervation
Sciatic Nerve (tibial nerve)

Action
 Flexes the Leg at the Knee Joint
 Extends the Thigh at the Hip Joint
 Posteriorly Tilts the Pelvis at the Hip Joint
 Med. Rot. of leg at knee J. (When knee is flexed)

Palpation

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15
Q

Tensor Fascia Latae origin, insertion, innervation, action, Palpation

A

Origin
Anterior Superior Iliac Spine (ASIS) and Anterior Iliac Crest

Insertion
Iliotibial Band (ITB) (1/3rd of the way down)

Innervation
Superior Gluteal Nerve

Action
 Flexes the Thigh at the Hip Joint
 Abducts the Thigh at the Hip Joint
 Medially Rotates the Thigh at the Hip Joint

Palpation

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16
Q

Sartorius origin, insertion, innervation, action, Palpation

A

Origin
Anterior Superior Iliac Spine (ASIS)

Insertion
Proximal anteromedial tibia (forms Pes
anserine tendon)

Innervation
Femoral Nerve

Action
 Flexes the Thigh at the Hip Joint
 Abducts the Thigh at the Hip Joint
 Laterally Rotates the Thigh at the Hip Joint
 Flexes the Leg at the Knee Joint
 Med. Rot. of Leg at the Knee Joint

Palpation

17
Q

Rectus Femoris origin, insertion, innervation, action, Palpation

A

Origin
Anterior Inferior Iliac Spine (AIIS)

Insertion
Tibial Tuberosity via the Patella and Patellar
Ligament

Innervation
Femoral Nerve

Action
 Extends the Leg at the Knee Joint
 Flexes the Thigh at the Hip Joint

Palpation

18
Q

Vastus Medialis origin, insertion, innervation, action, Palpation

A

Origin
Medial Lip of the Linea Aspera of the Femur

Insertion
Tibial Tuberosity via the Patella and Patellar
Ligament

Innervation
Femoral Nerve

Action
Extends the Leg at the Knee Joint

Palpation

19
Q

Vastus Lateralis origin, insertion, innervation, action, Palpation

A

Origin
Lateral Lip of the Linea Aspera of the Femur

Insertion
Tibial Tuberosity via the Patella and Patellar
Ligament

Innervation
Femoral Nerve

Action
Extends the Leg at the Knee Joint

Palpation

20
Q

Iliotibial Band (ITB) origin, insertion, innervation, action, Palpation

A

Origin
The Iliac Crest

Insertion
The Lateral Condyle of the Tibia at Gerdy’s
Tubercle

Innervation
Not a muscle

Action
Contributes to knee stabilization.

Palpation

21
Q

Adductor Longus origin, insertion, innervation, action, Palpation

A

Origin
Pubis

Insertion
Middle 1/3 of the Medial Lip of the Linea
Aspera of the Femur

Innervation
Obturator Nerve

Action
 Adducts the Thigh at the Hip Joint
 Flexes the Thigh at the Hip Joint

Palpation

22
Q

Gracilis origin, insertion, innervation, action, Palpation

A

Origin
Pubis

Insertion
Proximal part of medial surface of tibia (forms
Pes anserine tendon)

Innervation
Obturator Nerve

Action
 Adducts the Thigh at the Hip Joint
 Flexes the Thigh at the Hip Joint
 Flexes the Leg at the Knee Joint.
 Med. Rot. of Leg at Knee Joint.

Palpation

23
Q

Abductor Magnus origin, insertion, innervation, action, Palpation

A

Origin
Pubis and Ishium

Insertion
Linea Aspera, Gluteal Tuberosity, Medial
Supracondylar line and Adductor Tubercle of
the Femur

Innervation
Obturator Nerve and Sciatic Nerves

Action
 Adducts the Thigh at the Hip Joint
 Extends the Thigh at the Hip Joint
 Flexes the Thigh at the Hip Joint (pubic
attachment of muscle)

Palpation

24
Q

Tibialis Anterior origin, insertion, innervation, action, Palpation

A

Origin
Proximal lateral surface of the tibia (Technically no anterior surface of tibia)

Insertion
Plantar aspect of the 1st metatarsal and medial cuneiform

Innervation
Deep Fibular Nerve

Action
 Dorsiflexion of ankle (talocrural joint) and inversion of the foot (subtalar joint)
• If you invert your foot in dorsiflexion, you are using mainly tib ant

Palpation

25
Q

Extensor Hallucis Longus origin, insertion, innervation, action, Palpation

A

Origin
Middle portion of fibula, on the anterior surface

Insertion
Dorsal surface of distal phalanx of great (1st) toe

Innervation
Deep Fibular Nerve

Action
 Extension of the great toe and aids in dorsiflexion of talocrural joint/ankle

Palpation

26
Q

Extensor Digitorum longus origin, insertion, innervation, action, Palpation

A

Origin
Most of the anterior surface of the fibula plus the lateral tibial condyle

Insertion
By four tendons into middle and distal phalanges of 2nd- 5th toes (via the dorsal digital expanse)

Innervation
Deep Fibular Nerve

Action
 Extension of the 2nd-5th toes and aids in dorsiflexion and eversion of the talocrural joint/ankle.

Palpation

27
Q

Fibularis Longus (Peroneus Longus) origin, insertion, innervation, action, Palpation

A

Origin
Proximal 1/2 of lateral surface of fibula including the head

Insertion
Plantar aspect of the 1st metatarsal and medial cuneiform (beside insertion of tib ant)

Innervation
Superficial Fibular Nerve

Action
Eversion of the subtalar joint/foot, (plus aids in plantarflexion of the ankle/talocrural joint)

Palpation

28
Q

Fibularis Brevis (Peroneus Brevis) origin, insertion, innervation, action, Palpation

A

Origin
Distal 1/2 of lateral surface of fibula

Insertion
Base of the 5th metatarsal

Innervation
Superficial Fibular Nerve

Action
Eversion of the subtalar joint/foot, (plus aids in plantarflexion of the talocrural joint/ankle)

Palpation

29
Q

Gastrocnemius origin, insertion, innervation, action, Palpation

A

Origin
Posterior aspect of medial and lateral condyles of femur

Insertion
Calcaneus via the Calcaneal tendon

Innervation
Tibial Nerve

Action
Plantarflexion of the talocrural joint/ankle, plus aids in knee flexion

Palpation

30
Q

Soleus origin, insertion, innervation, action, Palpation

A

Origin
Upper portion of fibula and soleal line of tibia

Insertion
Calcaneus via the Achilles tendon

Innervation
Tibial Nerve

Action
Plantarflexion of the talocrural joint/ankle

Palpation

31
Q

Plantaris origin, insertion, innervation, action, Palpation

A

Origin
Lateral supracondylar ridge of femur

Insertion
Medial side of posterior part of calcaneus; sometimes part of Achilles tendon

Innervation
Tibial Nerve

Action
Plantarflexion of talocrural joint/ankle,
plus weakly aids in flexion of the knee
 Absent in some people

Palpation

32
Q

Tibialis Posterior origin, insertion, innervation, action, Palpation

A

Origin
Proximal Posterior aspect of tibia and fibula

Insertion
Navicular, cuboid, all cuneiforms and 2nd, 3rd and 4th metatarsals
and calcaneus
 Most important insertion bone: navicular

Innervation
Tibial Nerve

Action
 Inversion of subtalar joint/foot (plus aids in plantarflexion of
talocrural joint/ankle)
 If you invert the foot while it is plantarflexed, you will be using mainly tib post

Palpation

33
Q

Flexor Digitorum Longus origin, insertion, innervation, action, Palpation

A

Origin
Middle Posterior surface of tibia

Insertion
Distal phalanges of 2nd- 5th toes via 4 tendons.

Innervation
Tibial Nerve

Action
Flexion of the 2nd – 5th toes (plus aids in plantarflexion of the talocrural joint/ankle).

Palpation

34
Q

Flexor Hallucis Longus origin, insertion, innervation, action, Palpation

A

Origin
Distal Posterior surface of fibula

Insertion
Distal phalanges of great toe (first digit)

Innervation
Tibial Nerve

Action
Flexion of the great toe (plus aids in plantarflexion of the talocrural joint/ankle).

Palpation

35
Q

Extensor Digitorum Brevis origin, insertion, innervation, action, Palpation

A

Origin
Dorsal surface of the Calcaneus

Insertion
Lateral side of the distal tendons of Extensor
Digitorum Longus for toes #2-4

Innervation
Deep Fibular Nerve

Action
Extension of Toes #2-4 at the
Metatarsophalangeal and Proximal & Distal
Interphalangeal Joints

Palpation

36
Q

Extensor Hallicus Brevis origin, insertion, innervation, action, Palpation

A

Origin
Dorsal surface of the Calcaneus

Insertion
Base of the Proximal Phalanx of the Big Toe

Innervation
Deep Fibular Nerve

Action
Extension of Toes #1 the Metatarsophalangeal
Joint

Palpation

37
Q

Zygomaticus Major origin, insertion, innervation, action, Palpation

A

Origin
Zygomatic Bone

Insertion
Angle of the Mouth

Innervation
Facial (CN VII)

Action
Elevates the Angle of the Mouth

Palpation

38
Q

Risorius origin, insertion, innervation, action, Palpation

A

Origin
Fascia over the Parotid Gland (superficial to
Masseter)

Insertion
Angle of the Mouth

Innervation
Facial (CN VII)

Action
Draws Laterally the Angle of the Mouth

Palpation

39
Q

Buccinator origin, insertion, innervation, action, Palpation

A

Origin
Maxilla and the Mandible (Outer surfaces of the
Alveolar Processes)

Insertion
Lips (Deep into the musculature, lateral to the
angle of the mouth

Innervation
Facial (CN VII)

Action
Compresses the Cheeks

Palpation

Msak Tutorial Op 1 (2 decks)

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