muscle tissue LAB

Skeletal muscle cross section

Skeletal muscle cell (cross section)

Skeletal muscle longitudinal section

Myofibrils

Sarcomere (longitudinal section)

Satellite cells

Capillary

Sarcomere

Sarcomere

Phosphotungstic Acid/ Hematoxylin

Skeletal muscle cells

Muscle cell/Fibroblast nuclei

Sarcomere

Myofibrils

Endomysium

Capillaries

Perimysium

Epimysium

Type I and II muscle cells

Muscle spindle

Teased muscle

Individual muscle cells

Skeletal muscle cells

Myofibrils

Striations

Muscle Tendon

Tendon

Skeletal muscle

Muscle insertion

Fibrocartilage

Fascia Lata

Tendon (collagen)

Muscle

Muscle insertion

Bone

Skeletal muscle

Muscle insertion

Cardiac muscle

Cross section

Cardiac muscle cells

Longitudinal section

Branched cells

Binucleated cell

Intercalated disk

Lipofuscin pigment

Cardiac muscle

Phosphotungstic acid/ hematoxylin

Skeletal muscle

Cardiac muscle

Smooth muscle

Binucleated cell - cardiac muscle cell

Intercalated discs - cardiac muscle

Lipofuscin pigment - cardiac muscle cell

Branched cells - cardiac muscle cells

Heart

Endocardium

Purkinje fibers

Cardiac muscle cells

Cardiac skeleton

Chondrocytes

Heart

Endocardium

Purkinje fibers

Cardiac muscle cells

Smooth muscle

Cross section

Nuclei (cross section)

Longitudinal section

(Nuclei) longitudinal section

Mesentery

Blood vessel

Smooth muscle (longitudinal section)

Smooth muscle (spiral nuclei)

Small intestine

Muscularis externa

Inner circular layer

Outer longitudinal layer

Smooth muscle (longitudinal)

Smooth muscle (cross-section)

Collagen fibers

Gallbladder

Smooth muscle

Cross section

Longitudinal section

Skeletal muscle

Peripheral Nuclei (arrows)

Skeletal muscle in various sections

Peripheral nuclei (arrows)

Striations

Z disks (left)

A bands (middle)

I bands (right)

The Sarcomere

A:

I bands (top left bracket)

A bands (left bracket)

Myofibrils (bottom brackets)

Z lines (top left arrow)

H bands (center bracket)

M lines (center arrow)

Sarcoplasmic reticulum (top right arrows)

B:

I bands (top left bracket)

A bands (middle bracket)

Myofibrils (right bracket)

Z lines (top left arrow)

H bands (center bracket)

M lines (center arrow)

mitochondria (bottom right)