extra anatomy Q's

Question 1

What drains the lower right quadrant of the body?

a. left lymphatic duct
b. right venous angle
c. left venous angle

Answer 1

c. left venous angle

via the thoracic duct

Question 2

Where do the afferent lymph vessels attach to the lymph node?

a. hilum
b. surface of node

Answer 2

b. surface of node

Question 3

Germinal centers are NOT found in (the)

a. infants
b. adolescence
c. adults
d. elderly

Answer 3

a. infants

lymphatic nodules without germinal centers or an outer corona are primary nodules

Question 4

Which of the following is FALSE about the paracortex (deep cortex)?

a. it has no lymphatic nodules
b. it has most of the T cells
c. it is thymus independent

Answer 4

c. it is thymus independent

it’s actually thymus dependent!

Question 5

How do most lymphocytes enter a lymph node?

a. high endothelial venules
b. subcapsular sinus

Answer 5

a. high endothelial venules

Question 6

What type of collagen are reticular fibers composed of?

a. collagen type 1
b. collagen type 2
c. collagen type 3

Answer 6

c. collagen type 3

Question 7

Which of the following has the most T cells?

a. deep cortex
b. superficial cortex
c. germinal centers

Answer 7

a. deep cortex

Question 8

What separates the capsule and the superficial cortex?

Answer 8

the meshwork of the subcapsular sinus

Question 9

Which of the following aids in separating the reticular fibers from the lymphocytes to stop an autoimmune reaction?

a. dendritic cells
b. macrophages
c. follicular dendritic cells
d. reticular cells

Answer 9

d. reticular cells

Question 10

Where are dendritic cells most likely to be found?

a. deep cortex
b. superficial cortex
c. germinal centers

Answer 10

a. deep cortex

(they’re localized in places with a lot of T lymphocytes, so they can use their MHC II molecules to present antigens to the lymphocytes)

Question 11

Which of the following is not an APC?

a. dendritic cells
b. macrophages
c. follicular dendritic cells
d. thymic interdigitating cells

Answer 11

c. follicular dendritic cells

they don’t express MHC II

Question 12

Tonsilar crypts, which form when the epithelium dips into the tonsils, are derived from

a. the first pharyngeal pouch
b. the second pharyngeal pouch
c. the third pharyngeal pouch

Answer 12

b. the second pharyngeal pouch

Question 13

Peyer’s patches are found in the

a. duodenum
b. jejunum
c. ileum

Answer 13

c. ileum

Question 14

the thymus is derived from

a. the first pharyngeal pouch
b. the second pharyngeal pouch
c. the third pharyngeal pouch

Answer 14

c. the third pharyngeal pouch

with a contribution from the fourth pharyngeal pouch too

Question 15

T/F: the thymus stops supplying T lymphocytes and secreting thymic hormones after puberty

Answer 15

false, it continuously does those things throughout life

Question 16

What uptakes the dead cells of the thymus?

Answer 16

macrophages at the cortico-medullary junction

Question 17

Hassall’s corpuscles are an indicator of

a. a highly working thymus, producing many T cells
b. autoimmune disease
c. degeneration of the thymus
d. that the thymus is active due to disease

Answer 17

c. degeneration of the thymus

Question 18

Hassall’s corpuscles are made from

a. epithelioreticular cell type I
b. epithelioreticular cell type IV
c. epithelioreticular cell type V
d. epithelioreticular cell type VI

Answer 18

d. epithelioreticular cell type VI

Question 19

Which of the following compartmentalizes the cortex?

a. epithelioreticular cell type I
b. epithelioreticular cell type II
c. epithelioreticular cell type III
d. epithelioreticular cell type V

Answer 19

b. epithelioreticular cell type II

Question 20

Which of the following compartmentalizes the medulla?

a. epithelioreticular cell type I
b. epithelioreticular cell type II
c. epithelioreticular cell type III
d. epithelioreticular cell type V

Answer 20

d. epithelioreticular cell type V

Question 21

Which of the following forms the BBB?

a. epithelioreticular cell type I
b. epithelioreticular cell type II
c. epithelioreticular cell type III
d. epithelioreticular cell type V

Answer 21

a. epithelioreticular cell type I

Question 22

Which TWO of these have MHC 1 and 2 molecules?

a. epithelioreticular cell type I
b. epithelioreticular cell type II
c. epithelioreticular cell type III
d. epithelioreticular cell type IV

Answer 22

b. epithelioreticular cell type II
&
c. epithelioreticular cell type III

Question 23

Which TWO of these form the corticomedullary junction?

a. epithelioreticular cell type I
b. epithelioreticular cell type II
c. epithelioreticular cell type III
d. epithelioreticular cell type IV

Answer 23

c. epithelioreticular cell type III
&
d. epithelioreticular cell type IV

(they create the barries between cortex and medulla)

Question 24

The ligaments of the spleen attach it to which TWO things?

a. stomach
b. pancreas
c. right kidney
d. left kidney

Answer 24

a. stomach
&
d. left kidney

Question 25

Which of the following does the spleen lack? a. afferent lymphatics b. cortex c. medulla d. all of them

Answer 25

d. all of them

Question 26

What's TRUE about periarteriolar lymphatic sheath? a. thymus independant b. mostly has B lymphocytes c. mostly has T lymphocytes

Answer 26

c. mostly has T lymphocytes

Question 27

The marginal zone surrounds the a. white pulp b. red pulp c. the cortex d. the capsule

Answer 27

a. white pulp

Question 28

When the spleen is enlarged, where can it be felt? a. anterior to rib 7-8 b. below the costal margin c. posterior to ribs 9-11

Answer 28

b. below the costal margin

Question 29

Which of the following is not considered lymphoid tissue? a. white pulp b. red pulp c. the marginal zone

Answer 29

b. red pulp

Question 30

Which of the following describes the human spleen? a. blood enters the red pulp then enters the sinusoids b. blood enters directly into sinusoids

Answer 30

a. blood enters the red pulp then enters the sinusoids | an open system

Question 31

What two things do doctors have to be careful with when working with the spleen (splenectomy and biopsy)?

Answer 31

during splenectomy, make sure the pancreas tail is preserved | during biopsy, the needle should not enter the pleural cavity

Question 32

In what organ is each of these located? a. Malpighian corpuscles b. Hassall's corpuscles

Answer 32

``` a= white pulp of the spleen b= medulla of the thymus ```