Histo Week 1 (lectures 1 &2, light and electron microscopy)

What stain is this?

Hemotoxylin and eosin (H&E)

What are the arrows pointing to?

Eccrine sweat glands (cut in various sections)

What is the pink and purple (H&E)

Pink skeletal muscle fiber and cell nuclei in purple

What is the purple (H&E)

Motor neuron dendrites

What are the arrows pointing to (H&E)

Top: nucleolus

Bottom: axon

What is this H&E? What is the left arrow? what are the right arrows?

Pituitary gland

Chromophobe

Basophil

What is the yellow line?

What is the circled cell?

What type of connective tissue does the muscle have?

Myotendinous junction

Tendinocyte (fibroblast)

Dense regular

What is this H&E?

Colloid in thyroid follicles

What is this H&E?

Liver

What is this?

PAS of Glycogen accumulation in the liver

What is this?

PAS of glycogen depletion in the liver

What is this?

Mason’s trichrome of the esophagus

What is each color in Mason’s trichrome

Red: cytoplasm, muscle, RBCs

Blue: nuclei

Green: collagen

What is this?

Wright’s stain of a peripheral blood smear

What is this?

Wright’s stain of bone marrow

What are the left and right arrows?

Left: polychromatic erythroblasts

Right: Plasma cell

What is this?

Sudan black B, lipid stored in type 1 muscle fibers

What is this?

Acid phosphates of skeletal muscle

What is this?

H&E of the golgi aparatus

What is this?

Golgi stain of the epidydimids

What is this?

What is the purple?

Fuelgen reaction of the liver

DNA/Nuclei

What is this?

Anthracosis of lung tissue

What is this?

melanin of the skin

What is this?

Lipofuscin of the heart

Wha is this?

Hemosiderin in lung alveolar macrophages

What are the lighter regions?

What are the darker regions?

What is the dark region in the middle?

Euchromatin

Heterochromatin

Nucleolus

What is this?

Nuclear transport through nuclear pores

What is this?

Rough endoplasmic reticulum

What are the arrows pointing to?

Membrane bound Ribosomes

What are the red arrows pointing to?

Free ribosomes

What are the arrows pointing to?

Polysomes

What is on the right?

What is on the left?

Smooth ER

Rough ER

What are the letters?

A: nucleus

B: Rough ER

H: Transfer vesicles

C: Cis/forming face

D: Trans/maturing face

E: lysosomes

F: secretory granules

G: Membrane proteins

What is circled in Red?

What are A, B, C, and D?

Golgi aparatus

A: Vesicles

B: dilated cisterns

C: Transfer vesicles

D: rough ER

(Golgi) What is the top arrow? What are the bottom arrows?

Secretory granule, condensing vacuoles

What are the blue arrows?

Golgi secretory granules

What is the top arrow?

What are the bottom arrows?

Beta glycogen granule

Alpha glycogen rosettes

What are the red arrows?

what are the blue arrows?

Mitochondria, Cristae

What are the red arrows?

What are the yellow arrows?

Primary lysosomes (Ly1)

Secondary lysosomes (Ly2)

Which phagocytic pathway is this?

Heterophagic

Which Phagocytic pathway is this?

Autophagic

What is the left?

What is the right?

shelf-like cristae

Tubular cristae

What is this?

Residual bodies

What is in the black circle?

What are the red arrows?

What is in the yellow circle?

Autophagic vacuole

Mitochondria

Secondary lysosomes

(Longitudinal Axon)

What are the yellow arrows?

What are the blue arrows?

Neurofilament

Microtubules

(Transverse axon)

What is the yellow?

What is the blue?

What is the red?

Intermediate filaments

Micro filaments

Microtubules

What are the right arrows?

Micro filaments in a skeletal muscle fiber