Exam 3 – Lecture 20: Hemic-Lymphatic 1

Question 1

What makes up the hemic-lymphatic system?

Answer 1

Blood

Lymphatic system

Question 2

How much of body weight is made up by blood?

Answer 2

8%

Question 3

What are the different types of blood?

Answer 3

Erythrocytes
Leukocytes
Platelets

Question 4

What are the different types of leukocytes?

Answer 4

Granulocytes

Agranulocytes

Question 5

What are the granulocytes?

Answer 5

Neutrophils
Eosinophils
Basophils

Question 6

What are the agranulocytes?

Answer 6

Lymphocytes

Monocytes/macrophages

Question 7

What percentage of blood is the cellular component? What is the majority of that?

Answer 7

35-45%

RBCs

Question 8

What percentage of blood is the fluid compartment (plasma or serum)?

Answer 8

55-65%

Question 9

Which can clot, serum or plasma? Why?

Answer 9

Serum

There is more protein in plasma than serum

Question 10

Describe white blood cells

Answer 10

Leukocytes
Discrete cells
Mesodermal
Granulocytes vs agranulocytes

Question 11

Do WBCs have tight attachments surrounding colonies?

Answer 11

No

Question 12

Look at picture of platelet, lymphocyte, and neutrophil

Answer 12

Look at picture of platelet, lymphocyte, and neutrophil

Question 13

Describe neutrophils

Answer 13

Discrete, 10-12 μ cells
Have a lobed nucleus with "non-stain" granules
Chemotaxis, amoeboid motility
Variable amount of cytoplasm
First responders (make pus)
Associated with bacterial infections

Question 14

Describe eosinophils

Answer 14

Discrete, 10-12 μ cells
Have a bi-lobed nucleus with “red” granules
Chemotaxis, amoeboid motility
Variable amount of cytoplasm
Associated with parasites and allergic reactions

Question 15

Describe basophils

Answer 15

Extremely rare
Discrete, 10-12 μ cells
Lobed nucleus with basophilic granules
Function is unclear
Less than 1% of leukocytes

Question 16

Describe lymphocytes

Answer 16

Discrete, 10-12 μ round cells
Large central nucleus
Minimal to moderate cytoplasm
Found in thymus or bursal

Question 17

What do B cells make? What do they become?

Answer 17

Make immunoglobulins

Become factories for antibodies

Question 18

Describe monocytes

Answer 18

Discrete 15-25 μ cells
Large bean-shaped nucleus
Moderate to abundant cytoplasm
Professional phagocytes
Associated with granulomas

Question 19

Describe platelets

Answer 19

Discrete 3-5 μ cellular fragments
Anuclear
Derived from megakaryocytes
Bags of clotting factors

Question 20

Describe the lymphatic system

Answer 20

Immune system
Widely distributed
Closely aligned with cardiovascular system and blood
Many cell type

Question 21

How is the lymphatic system widely distributed?

Answer 21

Surface (mucosa) oriented

Internal surveillance

Question 22

What do lymphatic vessels resemble?

Answer 22

Veins, but carry lymph

Question 23

What do afferent lymphatic vessels do?

Answer 23

Lead to lymph nodes

Question 24

What do efferent lymphatic vessels do?

Answer 24

Leave lymph nodes

Question 25

When lymph reenters circulation, what does it go through?

Answer 25

Thoracic duct

Question 26

Describe lymph nodes

Answer 26

Small, encapsulated organs

Along lymphatic vessels

Question 27

What is the main job of lymph nodes?

Answer 27

Filter lymph

Question 28

What do lymph nodes play a role in?

Answer 28

Phagocytosis/immune response

Question 29

What do afferent lymph nodes come through?

Answer 29

Capsule

Question 30

What do efferent lymph nodes exit through?

Answer 30

Hilus

Question 31

What comes through the hilus of lymph nodes?

Answer 31

Blood

Question 32

What is the medulla of lymph nodes formed by?

Answer 32

Cords and sinuses

Question 33

What is the site of filtration in the lymph nodes?

Answer 33

Sinuses

Question 34

What does the cortex of lymph nodes consist of?

Answer 34

Lymphatic nodules

Question 35

What can be found in the cortex of lymph nodes?

Answer 35

APCs

Question 36

What is trabeculae?

Answer 36

Adjacent sinus in lymph nodes