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1
Q

Two types of Bone Marrow

A
  1. Red

2. Yellow

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2
Q

Red Bone Marrow (3)

A
  1. Stroma (type I and III)
  2. Hematopoeitic Chords
  3. Sinusoidal Capillaries
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3
Q

Major blood forming organ during 2nd trimester

A

Liver

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4
Q

When does Hematopoeisis start

A

Begins during 3rd week of gestation in yolk sac mesoderm

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5
Q

What is Hematopoeisis

A

Blood cell formation

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6
Q

Erythropoeisis

A

RBC Formation

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7
Q

Major blood forming organ after the liver

A

Spleen

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8
Q

Granulopoeisis

A

WBC granulocyte formation

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9
Q

What happens during Granulopoeisis?

A

Specific granule formation and nucleus shape formation

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10
Q

How do platelets arise?

A

From Megakaryocytes

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11
Q

Tunica Intima Cells

A

Single layer of Endothelial Cells

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12
Q

Tunica Media Cells

A

Smooth Muscle Cells

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13
Q

3 Layers of a Vessel

A
  1. Tunica Intima
  2. Tunica Media
  3. Tunica Adventitia
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14
Q

3 Tissues in Blood Vessels

A
  1. Endothelium (Simple Squamous)
  2. Muscle Tissue (Smooth Muscle)
  3. CT (Dense Irregular)
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15
Q

Tunica Adventitia Cells

A

Collagen I and Elastic Fibers

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16
Q

Main conducting artery?

A

Aorta

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17
Q

3 Types of Capillaries

A
  1. Somatic
  2. Fenestrated
  3. Sinusoidal
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18
Q

How do cells attach to Somatic Capillaries?

A

Via Tight Junction

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19
Q

Sinusoidal Capillary Location?

A

Liver and Hematopoeitic Tissue

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20
Q

Fenistrated Capillary Location?

A

Viscera and Kidney

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21
Q

Vein Function

A

Bring deoxygenated blood back to the heart/lungs

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22
Q

Pericytes

A

Cells found around capillaries that help to regulate flow and also help form new vessels after injury

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23
Q

Thickest layer in Large and Medium Veins?

A

Tunica Adventitia (Longitudinal Smooth Muscle)

24
Q

Venules vs Arterioles

A

Venules have enough space for RBCs to travel side by side

25
What do Venules travel with?
Arterioles
26
What types of vessels contain valves?
All veins and Lymphatic Vessels except Vena Cava
27
Where are Lymphatic Vessels found?
In all tissue except Bone Marrow
28
3 Layers of the Heart
1. Endocardium 2. Myocardium 3. Epicardium
29
What is the Endocardium made of?
Endothelial Cells
30
What is the Myocardium made of?
Cardiac Muscle
31
What is in the Subendocardial Layer?
Purkinje Fibers
32
Primary Lymphoid Organs
1. Bone Marrow | 2. Thymus
33
Bone Marrow Lymphocytes
B Lymphocytes
34
Thymus Lymphocytes
T Lymphocytes
35
Annuli Fibrosi
Serves as attachment for Atrioventricular Valves
36
Trigone Fibrosa
Origin and Insertion for swirls of cardiac muscle
37
Where does the Immune Response occur?
Secondary Lymphoid Organs
38
2 Types of Immune Response
1. Cellular | 2. Humoral
39
What Lymphocytes does the cellular response utilize?
T Lymphocytes
40
What Lymphocytes does the humoral response utilize?
B Lymphocytes
41
What immune cells are found in Bone Marrow?
B Lymphocytes and Natural Killer
42
2 Types of T Lymphocytes
1. Helper Ts | 2. Killer Ts
43
Role of Thymus
Sets up the Immune System
44
Capillaries found in Thymus?
Non-Fenestrated/Continuous
45
3 Types of Cells in the Cortex?
1. Epithelioreticular Cells 2. Macrophages 3. Thymocytes
46
What type of cell is the key feature of the Thymus?
Hassel's Corpuscle
47
Largest lymphatic organ?
Spleen
48
Spleen Function
Blood filter and reservoir
49
What components are in the White Pulp of the Spleen?
1. Germinal Center | 2. Central Artery
50
Where does the Splenic Artery enter the Spleen?
At the Hilum
51
Periarteriolar Lymphatic Sheath
Sheath of T cells immediately surrounding the Central Artery
52
What type of capillaries are Venous Sinuses?
Discontinuous
53
Marginal Zone
Transition zone between White and Red Pulp
54
In Lymph Nodes, afferent lymphatic vessels enter where?
Capsule (Convex Surface)
55
In Lymph Nodes, efferent lymphatic vessels exit where?
At the Hilum

Histology (9 decks)

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