biceps femoris


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Related to biceps femoris: quadriceps femoris

biceps femoris

(fĕm′ər-ĭs)
n.
See biceps.

biceps femoris

A two-headed major muscle of the leg.

Long head
Origin
Inner medial ischial tuberosity and sacrotuberous ligament.
 
Insertion
Head of fibula and lateral condyle of tibia.
 
Action
Extends thigh and flexes leg.
 
Nerve
Tibial branch of the sciatic nerve (L5, S2).

Short head
Origin
Lateral linea aspera and lateral intermuscular septum.
 
Insertion
Lateral condyle of tibia.
 
Action
Flexes leg.
 
Nerve
Common peroneal branch of the sciatic nerve (L5, S2).
References in periodicals archive ?
Similarly, it was evidenced that the EMG activity of the biceps femoris muscle was significantly higher in the BHT compared to squatting (Contreras et al., 2015).
Electromyography Activity of the Rectus Femoris and Biceps Femoris Muscles during Prostration and Squat Exercise.
The purpose of the present study was to analyze the levels of localized muscle fatigue by means of the electromyographic signal, as well as to use the [f.sub.med] to estimate the recovery rate of the rectus femoris and biceps femoris muscles that are constantly in use by handball players.
Caption: Figure 1: MRI of the thighs in axial T2 (a) and coronal T2 (b) sections shows bilateral fibroadipose degeneration of the adductor and biceps femoris muscles.
Afterward, the wound was irrigated with sterile saline and the fascia of the vastus lateralis and biceps femoris were approximated using 2-0 Vicryl suture, while the subcutaneous tissue and skin were occluded using 3-0 Vicryl suture (Ethicon, Johnson & Johnson, New Jersey, USA).
The results showed that 1) the expression levels of Ldh-c mRNA and protein were 0.804+-0.059 and 0.979+-0.176, respectively; 2) 30 min after administration of 1 mL of 1 mol/L N-isopropyl oxamate injected in biceps femoris muscle, the concentration of N-isopropyl oxamate in blood was 0.08 mmol/L; 3) in skeletal muscles of the inhibitor group and the control group, the LDH activities were 6.30+-0.50 U/mg and 10.01+-0.59 U/mg, the contents of LD were 0.28+-0.039 mmol/g and 0.84+-0.16 mmol/g, and the ATP level were 8.15+-1.03 nmol/mg and 12.06+-1.23 nmol/mg (P<0.01); 5) the inhibition rates of N-isopropyl oxamate to LDH, LD and ATP were 37.12%, 66.27%, and 32.42%, respectively.
Significant physiological (muscle activity) differences were found among C5 and the other 4 combinations of sit/stand duration, especially for the muscle of semitendinosus (ST), biceps femoris (BF), by using a sit-stand workstation.
Biceps femoris showed no significant difference at times T1, T2 and T3, as well as at times IR and FR of the four sessions, both for DG and HG.
Since muscles are inserted more distally in the human embryo compared to their adult form, Kumar postulated that TFS is a muscle that may take the place of embryological fibrous prolongations that exist between the tendon of biceps femoris and the deep fascia of the leg [4].
Electromyographic (EMG) activity of muscles was recorded from the Tibialis Anterior (TA), Medial Gastrocnemius (MG), Rectus Femoris (RF), and Biceps Femoris (BF) bilaterally.
The BioVision 8 channel sEMG device with sampling frequency of 1000 Hz was used to record the activities of seven leg muscles: tibialis anterior, gastrocnemius, soleus, vastus medialis, rectus femoris, gluteus maximus, and biceps femoris. The eighth channel of sEMG equipment was used for synchronization with motion capture data.