extra anatomy Q's Flashcards
What drains the lower right quadrant of the body?
a. left lymphatic duct
b. right venous angle
c. left venous angle
c. left venous angle
via the thoracic duct
Where do the afferent lymph vessels attach to the lymph node?
a. hilum
b. surface of node
b. surface of node
Germinal centers are NOT found in (the)
a. infants
b. adolescence
c. adults
d. elderly
a. infants
lymphatic nodules without germinal centers or an outer corona are primary nodules
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
c. it is thymus independent
it’s actually thymus dependent!
How do most lymphocytes enter a lymph node?
a. high endothelial venules
b. subcapsular sinus
a. high endothelial venules
What type of collagen are reticular fibers composed of?
a. collagen type 1
b. collagen type 2
c. collagen type 3
c. collagen type 3
Which of the following has the most T cells?
a. deep cortex
b. superficial cortex
c. germinal centers
a. deep cortex
What separates the capsule and the superficial cortex?
the meshwork of the subcapsular sinus
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
d. reticular cells
Where are dendritic cells most likely to be found?
a. deep cortex
b. superficial cortex
c. germinal centers
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)
Which of the following is not an APC?
a. dendritic cells
b. macrophages
c. follicular dendritic cells
d. thymic interdigitating cells
c. follicular dendritic cells
they don’t express MHC II
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
b. the second pharyngeal pouch
Peyer’s patches are found in the
a. duodenum
b. jejunum
c. ileum
c. ileum
the thymus is derived from
a. the first pharyngeal pouch
b. the second pharyngeal pouch
c. the third pharyngeal pouch
c. the third pharyngeal pouch
with a contribution from the fourth pharyngeal pouch too
T/F: the thymus stops supplying T lymphocytes and secreting thymic hormones after puberty
false, it continuously does those things throughout life
What uptakes the dead cells of the thymus?
macrophages at the cortico-medullary junction
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
c. degeneration of the thymus
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
d. epithelioreticular cell type VI
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
b. epithelioreticular cell type II
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
d. epithelioreticular cell type V
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
a. epithelioreticular cell type I
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
b. epithelioreticular cell type II
&
c. epithelioreticular cell type III
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
c. epithelioreticular cell type III
&
d. epithelioreticular cell type IV
(they create the barries between cortex and medulla)
The ligaments of the spleen attach it to which TWO things?
a. stomach
b. pancreas
c. right kidney
d. left kidney
a. stomach
&
d. left kidney
Which of the following does the spleen lack?
a. afferent lymphatics
b. cortex
c. medulla
d. all of them
d. all of them
What’s TRUE about periarteriolar lymphatic sheath?
a. thymus independant
b. mostly has B lymphocytes
c. mostly has T lymphocytes
c. mostly has T lymphocytes
The marginal zone surrounds the
a. white pulp
b. red pulp
c. the cortex
d. the capsule
a. white pulp
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
b. below the costal margin
Which of the following is not considered lymphoid tissue?
a. white pulp
b. red pulp
c. the marginal zone
b. red pulp
Which of the following describes the human spleen?
a. blood enters the red pulp then enters the sinusoids
b. blood enters directly into sinusoids
a. blood enters the red pulp then enters the sinusoids
an open system
What two things do doctors have to be careful with when working with the spleen (splenectomy and biopsy)?
during splenectomy, make sure the pancreas tail is preserved
during biopsy, the needle should not enter the pleural cavity
In what organ is each of these located?
a. Malpighian corpuscles
b. Hassall’s corpuscles
a= white pulp of the spleen b= medulla of the thymus
