Anatomy from the Hamstring Muscles

Written by Kenneth LeeJuly 24, 2020

Table of Contents:

Hamstring Muscle ( posterior thigh muscle )

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Posterior Thigh Compartment | Hamstrings Origins, Insertions, Etc.

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In this video, we explore the muscles of the posterior thigh compartment (the hamstring group) along with their origins, insertions, actions, innvervations, blood supply, and other facets.

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Functions of the semitendinosus muscle (preview) 3D Human Anatomy | Kenhub

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The semitendinosus muscle is one of the 3 hamstring muscles, which is a group of muscles right at the back of your thigh. Watch the full version of this video to learn the functions of this muscle: https://khub.me/19xvl.
Oh, are you struggling with learning anatomy? We created the ★ Ultimate Anatomy Study Guide ★ to help you kick some gluteus maximus in any topic. Completely free. Download yours today: https://khub.me/130mg.
Semitendinosus is a posterior thigh muscle which means that it is located in the posterior compartment of the thigh. So that is the area of the thigh between the buttocks and the popliteal fossa. As we know, in order for muscles to carry out their proper function, there must be a good nerve supply and the semitendinosus is no exception.It is innervated by the tibial nerve. It is the tibial division of the sciatic nerve..
The semitendinosus is actually one of three large muscles located in the posterior compartment of the thigh; the three muscles being the semitendinosus, the semimembranosus and the biceps femoris muscles. These three posterior thigh muscles are also sometimes referred to together as the hamstrings..
The fibers of the semitendinosus muscle originate or have their origin on a palpable protrusion on the surface of the ischium called the ischial tuberosity…and goes on to insert medially on the superior surface of the tibia, just behind the tendon of the gracilis muscle..
In the full version of this tutorial, we will cover the following topics:
location of the semitendinosus;.
innervation of the semitendinosus;.
origins and insertions of the semitendinosus;.
functions of the semitendinosus..
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Read more on the posterior thigh muscles anatomy on this article which includes some clinical notes on strains https://khub.me/8j24c.
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Thigh Hamstring Compartment Muscles Dissection-Popliteal Artery Entrapment Sanjoy Sanyal

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Educational Video created by Dr. Sanjoy Sanyal; Professor, Department Chair, Surgeon, Neuroscientist and Medical Informatician in the Western Hemisphere..
It shows the surgical anatomy of the Posterior (Hamstring) Compartment of Thigh, including Hamstring (Posterior) part of Adductor magnus. The specimen was harvested from a cadaver..
It also describes few clinical correlations – Popliteal artery entrapment..
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Biceps Femoris Anatomy, Hamstrings Everything You Need To Know Dr. Nabil Ebraheim

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Dr. Ebraheim’s educational animated video describes the anatomy of the Biceps Femoris muscle..
The biceps femoris is a muscle of the posterior thigh. The biceps femoris is one of the three flexor muscles of the posterior thigh:
1-Semimembranosus.
2-Semitendinosus.
3-Biceps femoris (long & short head).
The ischial tuberosity is divided by a transverse ridge into an upper quadrant portion and a lower triangular portion and each portion is divided into medial and lateral parts..
The biceps femoris has two heads of origin:
•The long head of the biceps femoris arises from the upper and medial part on the back of the ischial tuberosity..
•The short head of the biceps femoris arises from the lateral lip of the linea aspera on the posterior femur..
•Both heads of the biceps femoris are inserted into the head of the fibula along with the lateral collateral ligament and the popliteofibiular ligament..
The insertion of the structure from anterior to posterior on the fibular head:
•Lateral collateral ligament.
•Popliteofibular ligament.
•Biceps femoris tendon: most posterior structure on the proximal fibula..
Hamstring injuries.
The upper medial portion of the ischial tuberosity is where the insertion of the biceps femoris and semitendinosus is located. Muscle strains or tears of the muscle can occur in sports that require rapid acceleration-deceleration. Eccentric loading may cause these injuries. Injury usually involves the myotendinous junction approximately 12 cm distal to the ischium. Complete rupture or avulsion from the ischial tuberosity may also occur. These complete ruptures need repair. If not repaired, the rupture will lead to significants functional impairment which is more profound during vigorous activity..
Sciatic nerve injuries.
High sciatic nerve lesions can mimic peroneal neuropathy at the fibular head. The patient will have foot drop and EMG abnormalities in the short head of the biceps femoris muscle. The lesion is not from injury to the common peroneal nerve at the fibular head, the lesion is from injury to the sciatic nerve because of EMG changes in the short head of the biceps..
Innervation: the long head is innervated by the tibial branch of the sciatic nerve (L5,S2). The short head of the biceps femoris is innervated by the common peroneal branch of the sciatic nerve (L5,S2). The sciatic nerve starts in the lower back and runs through the buttock and lower limb. In the thighs the tibial part innervates the long head of the biceps femoris muscle while the peroneal part innervates the short head..
The tendon of the biceps femoris muscle forms the lateral hamstring. The biceps femoris muscles’ vascular supply is derived from the perforating branches of the inferior gluteal artery, the profunda femoris artery, and the popliteal artery. At this level, the sciatic nerve travels down the thigh to the area of the popliteal fossa and at this point, it divides into the tibial and common peroneal nerves..
Function: the biceps femoris muscle flexes the knee joint and laterally rotates the knee joint when the knee is flexed. The biceps femoris also extends the hip joint (long head only)..
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MUSCULAR SYSTEM ANATOMY: Posterior thigh region muscles model description. Somso

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Short video of the posterior thigh muscles.
Identifies:
Biceps femoris.
Long head.
Short head.
Semitendinosus.
Semimembranosus

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Anatomy & Palpation of the Hamstring Muscles

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Anatomy and Palpation of the Semimembranosus, Semitendinosus, and the Biceps Femoris.

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Anatomy of the Hamstring Muscles. What Do the Hamstrings Do? You use the hamstrings for walking, running, and jumping. They flex the knee and extend the hip at the beginning of Hamstring Exercises. Hamstring Stretches.

Hamstring Injuries.In human anatomy, a hamstring is any one of the three posterior thigh muscles in between the hip and the knee (from medial to lateral: semimembranosus, semitendinosus and biceps femoris). The hamstrings are quite susceptible to injury. In quadrupeds, the hamstring is the single large tendon found behind the knee or comparable area.

The largest muscle of the hamstrings is the biceps femoris. Like the biceps in your upper arm the largest of the hamstring muscles (biceps femoris) has two heads – long and short. The biceps femoris is the only two-headed hamstring muscle. The long head is the one toward the outside of the thigh.

CT Anatomy Tutorials: The Hamstring Muscles. The hamstring muscles cross two joints, the hip and the knee, and can act as extensors of the thigh and flexors of the leg. Because these muscles have a common site of origin on the ischial tuberosity and have similar positions in the posterior thigh, they are often difficult to distinguish from each other.Anatomy of the Hamstring Muscles The Hamstringsare actually comprised of three separate muscles: theBiceps Femoris, Semitendinosus andSemimembranosus.

These muscles originate just underneath the Gluteus Maximuson the pelvic bone and attach on the tibia. The Hamstringsare primarily fast-twitch muscles, responding to low reps and powerful movements.Muscles in the Posterior Compartment of the Thigh. 1 Muscles in the Posterior Compartment.

1.1 Biceps Femoris. 1.2 Semitendinosus. 1.3 Semimembranosus. 2 Clinical Relevance: Damage to the Hamstrings. 2.1 Muscle Strain.

2.2 Avulsion Fracture of the Ischial Tuberosity. They consist of the biceps.Anatomy and Palpation of the Semimembranosus, Semitendinosus, and the Biceps Femoris.Let’s take a closer look at the three hamstring muscles.

Each originates (attaches) on the sitting bones of the pelvis, and runs down the back of the thigh.Morphologic Characteristics and Strength of the Hamstring Muscles Remain Altered at 2 Years After Use of a Hamstring Tendon Graft in Anterior Cruciate Ligament Reconstruction. Konrath JM, et al. Am J Sports Med. 2016.

Proximal hamstring morphology and morphometry in men: an anatomic and MRI investigation. Storey RN, et al. Scand J Med Sci Sports.

Hamstring: The prominent tendons at the back of the knee. They are the sidewalls of the hollow behind the knee. (This hollow is called the popliteal space). Both hamstrings connect to.

The Hamstrings Group of Muscles. The hamstrings include three separate muscles that work together: the semitendinosus, the semimembranous, and the biceps femoris.The hamstrings are three muscles at the back of the thigh that affect hip and knee movement. They begin under the gluteus maximus behind the hipbone and attach to the tibia at the knee.

The hamstrings are large muscles and tendons that are located behind the thighs and knees. The hollow area flanked by the hamstring tendons is called the popliteal space. A pulled hamstring is one of the most common sports injuries that can occur.

The injury.The hamstrings are the muscles of the posterior compartment of the thigh and include the: lateral: biceps femoris medial: semimembranosus and semitendinosus Apart from the short head of biceps femoris, the muscles share two common features: span both the hip and knee joints and therefore produce hip extension and knee flexion; originate from the ischial tuberosity.The Anatomy of the Hamstring Muscles At the back of the upper leg behind the thigh (quadriceps) there are three muscles known as the hamstrings. They are the antagonistic muscles to the quads.

The hamstrings in the back of the thigh consist of three separate muscle.

List of related literature:

The biceps femoris originates on the ischium (long head) and femoral shaft (short head) and jointly attaches on the fibular head, making up the lateral portion of the hamstrings.
from Essentials of Physical Medicine and Rehabilitation E-Book by Walter R. Frontera, Julie K. Silver, Thomas D. Rizzo Elsevier Health Sciences, 2018
The hamstrings attach mainly on the ischial tuberosity; then two of the muscles, the semitendinosus and semimembranosus, run more medially on the posterior leg and attach near the sartorius and on the posterior/medial condyle of the tibia, respectively.
from Concepts of Athletic Training by Ronald P. Pfeiffer, Brent C. Mangus Jones and Bartlett Publishers, 2005
Three big muscles make up your hamstring—the semimembranosus, semitendinosus, and biceps femoris—all of which arise from different places in your hip and then snake down on different sides of your leg.
from Becoming a Supple Leopard 2nd Edition: The Ultimate Guide to Resolving Pain, Preventing Injury, and Optimizing Athletic Performance by Kelly Starrett, Glen Cordoza Victory Belt Publishing, 2015
The four muscles (semitendinosus, semimembranosus, biceps femoris and ischial part of adductor magnus) on the back of the thigh are commonly called the ‘hamstring muscles’ (Hams buttock and back of the thigh).
from Clinical and Surgical Anatomy by Vishram Singh Elsevier Health Sciences, 2019
Hamstring muscles include three muscles in the back of the thigh: semitendinosus, semimembranosus, and biceps femoris.
from Ferri’s Clinical Advisor 2019 E-Book: 5 Books in 1 by Fred F. Ferri Elsevier Health Sciences, 2018
The hamstrings — the biceps femoris, semimembranosus, and semitendinosus — run down the back of the thigh (refer to Figure 6-9b) and allow you to flex your lower leg and extend your hip.
from Anatomy & Physiology For Dummies by Erin Odya, Maggie A. Norris Wiley, 2017
The large posterior thigh muscles—biceps femoris, semimembranosus, and semitendinosus—are collectively called the hamstring muscles, and these are the major knee flexors.
from Stretching Anatomy by Arnold G. Nelson, Jouko Kokkonen Human Kinetics, 2020
The hamstrings are three muscles (four muscle bodies) in the posterior region of the buttock and thigh that originate at the ischial tuberosity and provide an extension force at the hip and a flexion force at the knee (Figure 156).
from Athletic Training and Sports Medicine by Robert C. Schenck, Ronnie P. Barnes, et. al. American Academy of Orthopaedic Surgeons, 1999
The hamstrings — the biceps femoris, semimembranosus, and semitendinosus — run down the back of the thigh (refer to Figure 5-8) and allow you to flex your lower leg and extend your hip.
from Anatomy & Physiology For Dummies by Donna Rae Siegfried Wiley, 2011
Hamstring strains involve a tear in the muscletendon unit of the hamstring muscles; biceps femoris, semitendinosus, or semimembranosus.
from Orthopedic Massage E-Book: Theory and Technique by Whitney W. Lowe Elsevier Health Sciences, 2009