You are here

Muscle tissue

A chicken heart muscle cell under a fluorescent microscope; the filaments consist of repeated subunits (bright dotted lines). The schematic representation shows three neighboring filaments; the black lines are the boundaries of their subunits, such that the lower filament is aligned with the middle one, while the upper one is not
A new model shows that the filaments in heart muscle cells don't automatically keep the beat
Muscle fibers of a fruit fly larva viewed under a confocal microscope: A normal fiber has normally-shaped, properly distributed nuclei (A), whereas the nuclei of fibers with mutated MSP-300 or its interacting proteins Klar and Klaroid are distorted and distributed abnormally (B, C and D)

Why do muscles lose their strength without exercise?

Use It or Lose It

Why do muscles lose their strength without exercise?

Running muscles may be predominantly fast- or slow-twitch

A new MRI-based method can detect metabolite levels in real time

(l-r) Dr. Benjamin Friedrich, Prof. Samuel Safran, Dr. Yair Shokef and Elon Langbeheim. Looking underneath

Developing cells “feel” what is underneath and take shape accordingly

Mouse embryo skeleton showing sites of initial bone formation (stained red) and cartilage (green and blue), which will later be replaced by bone
Do developing organs give each other directions?
(l-r) Shari Carmon, Dr. Vera Shinder, Prof. Ben-Zion Shilo, Rada Massarwa and Dr. Eyal Schejter. Unraveling cell fusion
Embryonic cells must merge to form muscle fiber