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Phase 1 Med > Cardiovascular - Histology > Flashcards

Cardiovascular - Histology Flashcards

1
Q

How do you identify red blood cells?

A

More pale in centre

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2
Q

How do you identify neutrophils?

A

Big chunks of dark blue staining

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3
Q

How do you identify eosinophils?

A

2-3 chunks of dark blue staining

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4
Q

How do you identify basophils?

A

Most of cell filled with blue stain

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5
Q

How do you identify lymphocytes?

A

Most of cell filled with blue stain, lighter area of cytoplasm around it

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6
Q

How do you identify monoctyes?

A

Kidney shaped area of dark blue staining

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7
Q

How do you identify platelets?

A

Little dots of blue staining

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8
Q

How do you identify reticulocytes?

A

Some grainy/bitty dark blue staining in cell

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9
Q

Describe the differences between histological slides of arteries and veins

A

Arteries: Thicker, muscular walls, circular shape
Veins: Large diameter, thin walls, irregular shape

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10
Q

What are the three layers of arteries and veins from innermost to outermost? Which is the thinnest?

A

Initma (thinnest)
Media
Adventitia

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11
Q

Where is elastic tissue found in vessels?

A

Their walls

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12
Q

Where is there more elastic tissue in vessels?

A

Closer to the heart

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13
Q

Describe the structure of arterioles and venules

A

Similar to arteries and veins but smaller

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14
Q

What are the two types of lymphatics?

A

Small and large

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15
Q

What are the differences between small and large lymphatics?

A
  • Small: like capillaries

- Large: irregular shape, thin and filled with plasma that stains pink

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16
Q

What are the 2 types of capillaries?

A

Continuous and fenestrated

17
Q

What is the intima made up of?

A

Endothelium and a small amount of connective tissue

18
Q

What is the media made up of?

A

Smooth muscle

19
Q

Difference between atrial and ventricular myocytes?

A
  • Atrial ones are smaller due to different workload/resistance
20
Q

What do atrial myocytes contain?

A

Small secretion granules close to the nucleus

21
Q

Describe the structure of the SAN

A

Small, irregularly arranged myocytes. Surrounded by blood vessels and nerve plexuses.

22
Q

Describe the structure of the AVN

A

Small, irregularly arranged myocytes. Surrounded by blood vessels and nerve plexuses. Made of specialised muscle fibres.

23
Q

Describe the structure of Purkinje fibres

A

Large modified muscle fibres with large vacuoles and few myofibrils, contain stores of glycogen.

24
Q

Which stain can be used to identify Purkinje fibres and why?

A

PAS as Purkinje fibre cells have stores of glycogen

25
Q

Describe the structure of heart vavles

A

Thick collagen fibres with occasional elastic tissue. Lined by endothelial cells.

Phase 1 Med (20 decks)

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