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Block 2: Histology > Lecture 1 (Revised) (Cardiovascular System) > Flashcards

Lecture 1 (Revised) (Cardiovascular System) Flashcards

1
Q

(Heart Layers)
Heart Layers (outer to inner)?

A

-Epicardium
-Myocardium
-Endocardium

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2
Q

Purkenjie cells?

A

Conducting cells

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3
Q

Inside of Heart is lined with?

A

Endothelium (simple squamous epithelium)

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4
Q

Outside of Heart is lined with?

A

Mesothelium (simple squamous epithelium)

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5
Q

Outer covering of Heart?

A

Pericardium (dense CT)

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6
Q

Epicardium consists of?

A

Fat cells, blood vessels, nerves

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7
Q

Myocardium consists of?

A

Cardiac muscle

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8
Q

Endocardium consists of?

A

Purkenjie cells, fibers, smooth muscle

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9
Q

Blood Vessels?

A

Arteries, arterioles, capillaries, veins, etc.

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10
Q

Portal Systems occur between?

A

2 capillary beds
(arterial)
(venous)

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11
Q

(Portal System)
Arterial Portal System?

A

(In Kidneys)
Arteriole between 2 beds

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12
Q

(Portal System)
Venous Portal System?

A

(In Liver)
Vein between 2 beds

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13
Q

Blood Vessel Layers?

A

-Tunica Adventitia
-Tunica Media
-Tunica Intima

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14
Q

(Blood Vessel Layers)
Tunica Adventitia?

A

Elastic fibers
(external elastic lamina)

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15
Q

(Blood Vessel Layers)
Tunica Media?

A

Elastic fibers + smooth muscle cells
(internal elastic lamina)

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16
Q

(Blood Vessel Layers)
Tunica Intima?

A

Smooth Muscle Cells

17
Q

Inside of Blood Vessels is lined with?

A

Endothelium

18
Q

Elastic Arteries?

A

-Thick tunica media
-Lots of elastic fibers (purple)
-Ex. aorta + pulmonary trunk

19
Q

Muscular Arteries?

A

-Thick tunica media
-Lots of smooth muscle cells (many nuclei)

20
Q

Medium Veins?

A

-Thin tunica media (elastic + reticular fibers, SMCs)
-Adventitia blends in with surrounding CT
-Irregularly shaped

21
Q

Large Veins - Vena Cava?

A

-Thin tunica media (elastic + reticular fibers, SMCs)
-May contain valves (unlike arteries)

22
Q

Arterioles?

A

-1-2 layers of SMCs
-Metarterioles control flow from arteriole into capillary

23
Q

Capillaries?

A

-Characterized by 1 layer of endothelium
-Continuous
-Fenestrated
-Sinusoidal

24
Q

(Capillaries)
Continuous Capillaries?

A

Muscle + Nerve tissue
(fully intact membrane)
(NO diffusion)

25
Q

(Capillaries)
Fenestrated Capillaries?

A

Digestive organs + pancrease
(perforated membrane)
(some diffusion)

26
Q

(Capillaries)
Sinusoidal Capillaries?

A

Liver + Spleen + Bone Marrow
(incomplete membrane)
(diffusion of large products)

27
Q

Neuromuscular Bundle?

A

Nerve, artery, vein, and lymph surrounded by fascial sheath (CT)

28
Q

Myocardial Infarct?

A

Heart Attack

29
Q

Blockage of coronary arteries leads to?

A

Complete loss of blood flow and muscle tissue dies

30
Q

Neutrophils + Macrophages come into area to?

A

Clear out dead (necrotic cells)

31
Q

Fibroblasts use collagen to?

A

Form scar tissue

Block 2: Histology (9 decks)

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