(03) Immune System II

Question 1

(yellow asterik)

(green asterik)

Answer 1

(yellow) paracortex (deep cortex)
(green) cortex (outer cortex)

(both are in lymph nodes)

Question 2

this area

Answer 2

hilus (lymph node)

Question 3

(blue arrows)

(red arrows)

Answer 3

(blue) afferent lymphatic duct
(red) efferent lymphatic duct

(both of lymph node)

Question 4

these areas

Answer 4

medulla (lymph node)

Question 5

Answer 5

subcapsular sinus (lymph node)

Question 6

(where the blue cords are pointing)

(where they are)

Answer 6

medullary cords

medullary sinuses

both in lymph node

Question 7

Answer 7

reticular cells (lymph node)

Question 8

(whole thing)

(left arrow)

(right arrow)

(what is unique)

Answer 8

pig lymph node

cortex

medulla

cortex and medulla are flipped

Question 9

(blue arrows)

Answer 9

capsule (spleen)

Question 10

purple arrows

Answer 10

trabeculae (spleen)

Question 11

(red arrows)

(green capsule)

Answer 11

red pulp

white pulp (nodules)

both of spleen

Question 12

Answer 12

trabecular artery (of spleen)

Question 13

Answer 13

artery of white pulp

Question 14

how do these compare in size

Answer 14

artery of red pulp (pulp arterioles)

smaller than artery of white pulp

Question 15

(blue arrows)

(green circle)

(whole thing)

Answer 15

capillary in cross section

approximate edge of sheath surrounding capillary

sheathed capillary

Question 16

(red)

(green)

Answer 16

(red) artery of white pulp
(green) PALS (periarterial lymphatic sheath) (lymphoid tissue associated with arteries in the white pulp)

Question 17

Answer 17

marginal zone (of white pulp of spleen)

Question 18

the circles

Answer 18

lymphatic follicles (nodules)

of spleen white pulp