Pt 3 Exam 2

Question 1

Draining interstitial fluid
Transporting dietary lipids from gastrointestinal tract to the blood
Facilitating the immune responses

Answer 1

Functions of the lymphatic system

Question 2

Larger pores than blood capillaries
Blind ends
unique one-way structure.

Answer 2

Lymphatic capillaries:

Question 3

● Lymphatic capillaries unite to form _____
● resemble veins with____ walls and more valves

Answer 3

larger lymphatic vessels. thinner

Question 4

from the periphery towards the central
vasculature.

Answer 4

Flow of lymph fluid

Question 5

is moved by pressure in the
interstitial space and the milking action of
skeletal muscle contractions and respiratory
movements

Answer 5

Lymphatic fluid

Question 6

primary and secondary organs and tissues widely distributed throughout the body

Answer 6

facilitates the immune response

Question 7

bone marrow and
thymus.

Answer 7

Primary lymph organs

Question 8

Stem cells divide and become
* _____ (capable of
mounting an immune response)

Answer 8

immunocompetent

Question 9

Where most immune responses occur

Answer 9

Secondary lymphatic organs:

Question 10

Spleen, Lymph nodes, and other lymphoid
tissues such as the tonsils.

Answer 10

Secondary lymphatic organs:

Question 11

serve as filters to trap and destroy
foreign objects in lymph fluid.

Answer 11

lymph nodes

Question 12

Lymph fluid enters the node through _______and moves towards the central
medullary sinuses.

Answer 12

afferent
vessels

Question 13

______ convey
lymph, antibodies and
activated T cells out of
the node at an indentation
called the hilum

Answer 13

Efferent vessels

Question 14

The _____ of the _____ is composed of a large number of immature T cells which migrate from their birth-place in red bone marrow

Answer 14

outer cortex. thymus

Question 15

The inner medulla of the thymus is composed of (more/less) mature T
cells.

Answer 15

more

Question 16

The___- is the body’s largest mass of
lymphatic tissue

Answer 16

spleen

Question 17

lymphatic tissue where lymphocytes
and macrophages carry out immune function

Answer 17

white pulp

Question 18

blood-filled venous sinuses where
platelets are stored and
old red cells
are destroyed
Lymphatic Organs

Answer 18

red pulp

Question 19

innate

Answer 19

inborn

Question 20

adaptive

Answer 20

acquired

Question 21

Our immune response includes what responses

Answer 21

adaptive and innate

Question 22

Is non-specific and non-adaptive. * physical, and
chemical barriers provided by the skin and mucous membranes. AND
* internal defenses

Answer 22

innate immune

Question 23

Physical-blocks,
traps, or washes out
microbes
 Chemical-acidic or
other antimicrobial
substances

Answer 23

barriers

Question 24

• Phagocytes
• Natural killer (NK) cells
• Antimicrobial substances
   Complement system
   Iron-binding proteins
   Interferon (viruses)
• Inflammation
• Fever

Answer 24

internal defenses

Question 25

abnormally high body temperature due to resetting of the hypothalamic thermostat. * Non-specific response:  speeds up body reactions  increases the effects of endogenous antimicrobials

Answer 25

fever

Question 26

defensive response of almost all body tissues to damage of any kind (infection, burns, cuts, etc.). * four characteristic signs and symptoms: redness, pain, heat, and swelling. * Non-specifically disposes of microbes and foreign materials, dilute toxins, and prepare

Answer 26

inflammation

Question 27

The inflammatory response has three basic stages:

Answer 27

Vasodilation and increased permeability, Emigration (movement) ((of phagocytes from the blood into the interstitial space and then to site of damage)), and tissue repair

Question 28

allows more blood to flow to the damaged area which helps remove toxins and debris. * Increased permeability permits entrance of defensive proteins (antibodies and clotting factors) to site of injury  Other inflammatory mediators include histamine, kinins, prostaglandins (PGs), leukotrienes (LTs), and complement

Answer 28

Vasodilation

Question 29

of phagocytes depends on chemotaxis * Neutrophils predominate in early stages but die off quickly. * Monocytes transform into macrophages and become more potent phagocytes than neutrophils.  Pus is a mass of dead phagocytes and damaged tissue.  Pus formation occurs in most inflammatory responses and usually continues until the infection subside

Answer 29

emigration