Vastus Intermedius: Difference between revisions
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[[File:Vastus intermedius.jpg|thumb|440x440px]] | [[File:Vastus intermedius.jpg|thumb|440x440px]] | ||
==== | ====Origin''' ==== | ||
Originating from the upper two-thirds of anterior and lateral surfaces of the [[femur]] and the intermuscular septum<ref name=":0" />. | Originating from the upper two-thirds of anterior and lateral surfaces of the [[femur]] and the intermuscular septum<ref name=":0" />. | ||
==== | ====Insertion''' ==== | ||
Inserting via the [[Quadriceps tendon tear|Quadriceps femoris tendon]] to form the deep part of the tendon and then inserts into the lateral margin of the [[patella]]<ref name=":2">Miller, A, Heckert, KD, Davis, BA.The 3-Minute Musculoskeletal & Peripheral Nerve Exam. New York: Demos Medical Publishing. 2009; p.116-117</ref>. | Inserting via the [[Quadriceps tendon tear|Quadriceps femoris tendon]] to form the deep part of the tendon and then inserts into the lateral margin of the [[patella]]<ref name=":2">Miller, A, Heckert, KD, Davis, BA.The 3-Minute Musculoskeletal & Peripheral Nerve Exam. New York: Demos Medical Publishing. 2009; p.116-117</ref>. | ||
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Together with other muscles that are part of the [[Quadriceps Muscle Strain|Quadriceps femoris]], it facilitates knee extension<ref>Moore, KL, Dalley, AF, Agur, AM. Clinically oriented anatomy. 7<sup>th</sup> ed. Baltimore, MD: Lippincott Williams & Wilkins, 2014</ref><ref>Hislop, HJ, Montgomery,J. Daniels and Worthingham's Muscle Testing: Techniques of Manual Examination. 8<sup>th</sup> ed. Missouri: Saunders Elsevier, 2007; p201-204</ref>. | Together with other muscles that are part of the [[Quadriceps Muscle Strain|Quadriceps femoris]], it facilitates knee extension<ref>Moore, KL, Dalley, AF, Agur, AM. Clinically oriented anatomy. 7<sup>th</sup> ed. Baltimore, MD: Lippincott Williams & Wilkins, 2014</ref><ref>Hislop, HJ, Montgomery,J. Daniels and Worthingham's Muscle Testing: Techniques of Manual Examination. 8<sup>th</sup> ed. Missouri: Saunders Elsevier, 2007; p201-204</ref>. | ||
==== | ====Blood supply''' ==== | ||
The descending branch of the lateral circumference femoral artery supplies this muscle<ref name=":0" />. | The descending branch of the lateral circumference femoral artery supplies this muscle<ref name=":0" />. | ||
==== | ====Innervation''' ==== | ||
The Vastus Intermedius muscle is innervated by a branch of the [[Lumbar Plexus|Femoral nerve]], originating from lumbar nerve 2, 3, and 4 nerve roots<ref name=":2" /><ref name=":0" />. | The Vastus Intermedius muscle is innervated by a branch of the [[Lumbar Plexus|Femoral nerve]], originating from lumbar nerve 2, 3, and 4 nerve roots<ref name=":2" /><ref name=":0" />. | ||
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Assessment of the quadriceps muscles individually cannot be done; therefore, the test for knee extensor integrity is used to assess for it's power. See: [[Rectus Femoris|Rectus femoris]]. | Assessment of the quadriceps muscles individually cannot be done; therefore, the test for knee extensor integrity is used to assess for it's power. See: [[Rectus Femoris|Rectus femoris]]. | ||
==== | ====Palpation''' ==== | ||
The Vastus Intermedius is difficult to palpate. It is the least superficial muscle in the thigh's anterior compartment muscles; thus, it cannot be isolated for stretching and/or massage. | The Vastus Intermedius is difficult to palpate. It is the least superficial muscle in the thigh's anterior compartment muscles; thus, it cannot be isolated for stretching and/or massage. | ||
Revision as of 22:38, 18 July 2019
Original Editor - User:Uchechukwu Chukwuemeka
Top Contributors - Uchechukwu Chukwuemeka, Kim Jackson, Abbey Wright and Lucinda hampton
Description[edit | edit source]
Vastus Intermedius is located centrally, underneath Rectus femoris[1] in the anterior compartment of the thigh and on each side of it: Vastus medialis and Vastus Lateralis respectively[2]. It is one of the four muscles that form the quadriceps femoris muscle. Tensor of Vastus Intermedius is a new muscle that is part of the Quadriceps[3].
Origin[edit | edit source]
Originating from the upper two-thirds of anterior and lateral surfaces of the femur and the intermuscular septum[1].
Insertion[edit | edit source]
Inserting via the Quadriceps femoris tendon to form the deep part of the tendon and then inserts into the lateral margin of the patella[4].
Function[edit | edit source]
Together with other muscles that are part of the Quadriceps femoris, it facilitates knee extension[5][6].
Blood supply[edit | edit source]
The descending branch of the lateral circumference femoral artery supplies this muscle[1].
Innervation[edit | edit source]
The Vastus Intermedius muscle is innervated by a branch of the Femoral nerve, originating from lumbar nerve 2, 3, and 4 nerve roots[4][1].
Assessment[edit | edit source]
Assessment of the quadriceps muscles individually cannot be done; therefore, the test for knee extensor integrity is used to assess for it's power. See: Rectus femoris.
Palpation[edit | edit source]
The Vastus Intermedius is difficult to palpate. It is the least superficial muscle in the thigh's anterior compartment muscles; thus, it cannot be isolated for stretching and/or massage.
Resources[edit | edit source]
References[edit | edit source]
- ↑ 1.0 1.1 1.2 1.3 Drake, RL, Vogl, W, Mitchell, AW, Gray, H. Gray's anatomy for Students 2nd ed. Philadelphia : Churchill Livingstone/Elsevier, 2010
- ↑ Grob K, Manestar M, Filgueira L, Kuster MS, Gilbey H, Ackland T. The interaction between the vastus medialis and vastus intermedius and its influence on the extensor apparatus of the knee joint. Knee Surgery, Sports Traumatology, Arthroscopy. 2018 Mar 1;26(3):727-38.
- ↑ Veeramani R, Gnanasekaran D. Morphometric study of tensor of vastus intermedius in South Indian population. Anatomy & cell biology. 2017 Mar 1;50(1):7-11.
- ↑ 4.0 4.1 Miller, A, Heckert, KD, Davis, BA.The 3-Minute Musculoskeletal & Peripheral Nerve Exam. New York: Demos Medical Publishing. 2009; p.116-117
- ↑ Moore, KL, Dalley, AF, Agur, AM. Clinically oriented anatomy. 7th ed. Baltimore, MD: Lippincott Williams & Wilkins, 2014
- ↑ Hislop, HJ, Montgomery,J. Daniels and Worthingham's Muscle Testing: Techniques of Manual Examination. 8th ed. Missouri: Saunders Elsevier, 2007; p201-204
