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Cell Pathology 2 (Histology) - 2016 > Vasculature - Workshop > Flashcards

Vasculature - Workshop Flashcards

1
Q

Which is part of the media of the vascular wall?

A. Endothelium

B. Smooth muscle cells

C. Vasa vasorum

D. Subendothelial C.T.

A

B

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2
Q

What is a dissecting aortic aneurysm?

A

A split in the middle of the tunica media

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3
Q

Which type of artery is shown here?

A

Muscular artery

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4
Q

When LDL is oxidized during ateriosclerosis, it is then taken up by __________.

A

macrophages

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5
Q

What is the definition of resistance?

A

The force against which the heart pumps

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6
Q

What is featured in this image?

A

Arteriole

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7
Q

What two factors are required for vasoconstriction?

A. Calmodulin/MLCK

B. Calmodulin/MLCP

C. Myosin/MLCP

A

A

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8
Q

Which is correct?

A. Calmodulin stimulates MLCK; cAMP inhibits MLCK

B. Calmodulin stimulates MLCK; cAMP stimulates MLCK

C. Calmodulin inhibits MLCK; cAMP inhibits MLCK

D. Calmodulin inhibits MLCK; cAMP stimulates MLCK

A

A

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9
Q

Cytosolic Ca2+ is increased via:

A. Norepinephrine

B. G alpha i receptor

C. decreases in cAMP

D. IP3 pathway

A

D

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10
Q

Which of the following is a local mechanism of vasoconstriction?

A. Norepinephrine

B. Myogenic stretch response

C. Angiotensin II

D. Vasopressin

E. None of these

A

B

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11
Q

Myosin light chain phosphatase is activated by:

A. increasing cGMP

B. increasing cAMP

C. increasing Rho-kinase

D. decreasing cGMP

A

A

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12
Q

Which is NOT an inhibitor of MLCK?

A. Epinephrine

B. Adenosine

C. Nitric oxide

D. Prostacyclins

A

C (NO activates MLCP)

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13
Q

Which is true regarding capillary blood flow regulation?

A. Precapillary sphincters are usually open

B. Metarterioles act as a dilating arteriole

C. Thoroughfare channels contain no smooth muscle

D. A-V anastomoses prevent bypass of arteries into capillary beds

A

C

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14
Q

Which type of tissue is featured here?

A

Cardiac muscle

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15
Q

Which type of capillary is featured here?

A

Continuous capillary - within cardiac muscle

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16
Q

The top “4” label refers to:

A. Schwann cell

B. Nerve

C. Mitochondria

D. T-tubule

A

D

17
Q

The top “2” label refers to:

A. Schwann cell

B. Nerve

C. Mitochondria

D. T-tubule

A

B

18
Q

Which type of capillary is featured here?

A

Fenestrated capillary

19
Q

Fenestrated capillaries are found:

A. In the endocrine gland

B. In the thymus gland

C. In the bones

D. In the skeletal muscle

A

A

20
Q

Which type of capillary is featured here?

A

Discontinuous/sinusoidal

21
Q

The arrow in this image indicates what component in the liver?

A

LDL particle

22
Q

Which is true regarding venules?

A. Lesser diameter lumen than companion arteriole

B. 1 incomplete layer of smooth muscle in media

C. Small lumen diameter compared to wall thickness

D. More than one of the above

A

B

23
Q

The following image features:

A

venule

24
Q

Which is involved in the “adhesion” of WBC extravasation?

A. L-selectin

B. PECAM-1(d6)

C. Integrins: LFA-1 and Mac-1

D. PECAM-1(d1/2)

A

C

25
Q

The biggest capacitance vessel type, shown here, is known as a:

A

Muscular vein

26
Q

What is featured in this image?

A

Cross-section of vena cava

27
Q

The darker, wavy lines in this image are what component of the vein that is shown?

A

Elastin

28
Q

What component of the lymphatic vessel is displayed by the star in this image?

A

valve

29
Q

Which cells are cut circumferentially?

A. Intima

B. Media

C. Adventitia

D. None of these

A

B

30
Q

In an artery:

A. Adventia is widest tunic

B. Media is widest tunic

C. Width of adventia and media vary

A

B

31
Q

Which type of vessel is featured in #1?

A

Arteriole. 3-4 layers of smooth muscle

32
Q

What is featured as #2 in this image?

A

Venule - RBCs in lumen, and incomplete basal lamina.

33
Q

What is featured by #3 in this image?

A

Duct - features 2 rows of nuclei, stratified cuboidal epithelium, goblet cell.

Cell Pathology 2 (Histology) - 2016 (19 decks)

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