Hindlimb Skeletal Muscle Extraction: A Procedure to Excise Hindlimb Skeletal Muscles from Murine Model

0 weergaven3:40 min • April 30th, 2023

To begin, prep a euthanized mouse in the supine position. Clamp one of its feet to extend the limb vertically. Gently hold the skin of the lower limb.

Next, surgically remove the skin and fascia, the layer of loose connective tissue just underneath the skin, exposing the underlying muscle bellies of the lower limb.

Identify the gastrocnemius muscle - a large, superficial two-headed muscle - on the posterior lower limb. It originates from the lateral and medial condyles of the posterior femur and attaches to the calcaneus - heel bone - via the calcaneal tendon.

Hold the distal end of the muscle and pull the muscle belly towards its origin. Excise the gastrocnemius calcaneal tendon followed by the muscle at the origin closest to the femur. 

Now, locate the tibialis anterior muscle. The muscle originates from the anterolateral surface of the tibia and attaches to the medial cuneiform bone via the distal tendon.

Detach the tibialis muscle belly from the underlying connective tissue. Cut the distal tendon and the muscle at the origin closest to the tibia.

Finally, transfer the excised muscles into cryotubes. Store the tubes at low temperatures until further downstream analysis.

To avoid fur contamination, spray 70% ethanol over the entire body. Then, place the animal on a dissection bed in the supine position and attach one hind limb to an elevated buret clamp to extend the limb vertically. Using Dumont forceps, grasp the superficial skin of the hind limb, and use curved fine scissors to gently remove the skin and fascia, exposing the underlying muscle bellies of the lower limb.

Identify the gastrocnemius muscle on the posterior lower limb by its origin at the lateral and medial condyles on the posterior femur and its insertion at the calcaneus via the calcaneal tendon. Use the forceps to grasp the distal end of the gastrocnemius and pull the muscle belly toward its origin. Then, use scissors to cut the muscle at the origin as close as possible to the femur and transfer the muscle to a pre-weighed dish.

Weigh the dish immediately and transfer the muscle into a pre-labeled cryotube. Next, identify the tibialis anterior muscle from its origin at the anterolateral surface of the tibia and its insertion at the medial cuneiform via its distal tendon. Then, grasp the foot by the digits with the index finger and thumb and insert the tip of the Dumont forceps immediately under the superficial distal tendon of the tibialis.

Move the forceps such that the blunt side can be used to detach the tibialis muscle belly from the underlying connective tissue and use the fine curved scissors to cut the distal tendon. Then, cut the muscle at the origin as close as possible to the tibia.

07:33

In vitro organoïde Cultuur van primaire Mouse Colon Tumoren

Gerelateerde video's

0 Bekeken

08:17

Cryosectioning aaneengesloten Regio's van een enkele muis skeletspieren voor Gene Expression en histologische Analyses

Gerelateerde video's

0 Bekeken

05:18

Verzameling skeletspierbiopten uit het superieure compartiment van human musculus Tibialis Anterior voor mechanische evaluatie

Gerelateerde video's

0 Bekeken

12:51

Muizenmodel van achterbeen ischemie

Gerelateerde video's

0 Bekeken

14:10

Isometrische en Excentrische troepenmacht Beoordeling van skeletspieren Geïsoleerd van muizenmodellen van spierdystrofieën

Gerelateerde video's

0 Bekeken

10:50

Scheenbeen Nerve doorsnijding - Een gestandaardiseerd model voor denervatie-geïnduceerde Skeletal Muscle Atrofie in Muizen

Gerelateerde video's

0 Bekeken

07:17

Murine Hind Limb Long Bone Dissection en Bone Marrow Isolation

Gerelateerde video's

0 Bekeken

07:18

Identificatie van de skeletspieren satelliet cellen met immunofluorescentie met Pax7 en Laminin antilichamen

Gerelateerde video's

0 Bekeken

08:26

Röntgendiffractie van intact Murine skeletspieren als een instrument voor het bestuderen van de structurele basis van spierziekte

Gerelateerde video's

0 Bekeken

08:11

Isolatie van mitochondriën uit de skeletspieren van muizen voor respirometrische assays

Gerelateerde video's

0 Bekeken

Laatst bijgewerkt: 29 augustus 2026