MMED1007 EXAM QUESTIONS WITH
COMPLETE SOLUTIONS
1) |Stains |are |used |primarily |for |what |purpose |in |microscopy? |- |CORRECT |ANSWER✔✔-d. |To |
help |distinguish |some |parts |of |the |specimen |from |surrounding |regions
2) |Resolution |is |defined |as: |- |CORRECT |ANSWER✔✔-c. |The |minimum |distance |over |which |two |
objects |can |be |distinguished |from |a |single |object
3) |Haematoxylin |is |widely |used |as |a |histological |stain. |What |structures |does |it |tend |to |bind |to |
and |stain |most |intensely? |- |CORRECT |ANSWER✔✔-d. |nuclei |and |rough |endoplasmic |reticulum
4) |The |plasmalemma |is: |- |CORRECT |ANSWER✔✔-b. |a |fluid |phospholipid |bilayer |with |
numerous |proteins |"floating" |in |it
5) |The |three |major |types |of |fibres |in |connective |tissue |are: |- |CORRECT |ANSWER✔✔-a. |
collagen, |elastin |and |reticulin
6) |Cardiac |myocytes |(heart |muscle |cells) |have |nuclei |that |distinguish |them |from |those |of |
smooth |and |striated |muscle. |Which |of |the |following |best |describes |the |nuclei |of |cardiac |
myocytes |- |CORRECT |ANSWER✔✔-e. |they |are |round |nuclei, |usually |in |the |middle |of |fibres, |
often |surrounded |by |other |organelles |such |as |mitochondria, |glyogen |granules
7) |Which |of |the |following |types |of |cells |is |capable |of |contracting |by |itself |to |produce |force |on |
another |cells, |in |a |physiological |role |in |the |body? |- |CORRECT |ANSWER✔✔-b. |myoepithelial |cell
,8) |Which |of |the |following |is |FALSE |about |simple |squamous |epithelia |- |CORRECT |ANSWER✔✔-
c. |they |consist |of |several |layers |of |squamous |cells
9) |Which |of |the |following |is |not |true |about |the |bladder |epithelium? |- |CORRECT |ANSWER✔✔-
the |cells |on |the |luminal |surface |of |the |bladder |epithelium |are |columnar |in |shape
10) |The |cells |that |"insulate" |nerve |cell |axons |outside |the |central |nervous |system, |and |which |
cause |their |action |potentials |to |propagate |more |rapidly |than |would |otherwise |be |the |case |are |
called: |- |CORRECT |ANSWER✔✔-a. |Schwann |cells
11) |Which |region |of |gut |is |characterised |by |the |presence |of |villi? |- |CORRECT |ANSWER✔✔-e. |
The |whole |small |intestine |(duodenum, |jejunum |and |ileum)
12) |Which |of |the |following |types |of |cell |produces |an |exocrine |secretion? |- |CORRECT |
ANSWER✔✔-b. |Goblet |cells
13) |What |are |the |main |types |of |immune |cells |found |in |lymphoid |tissue |in |the |gut |wall |(ie: |gut-
associated |lymphoid |tissue |or |GALT)? |- |CORRECT |ANSWER✔✔-e. |Mast |cells
14) |Starting |at |the |end |nearest |the |mouth |(proximal) |and |progressing |distally, |which |is |the |
correct |order |of |organs |of |the |gastrointestinal |tract: |- |CORRECT |ANSWER✔✔-b. |oesophagus, |
stomach, |small |intestine, |colon
15) |Which |type |of |epithelium |forms |the |mucosal |lining |of |the |upper |stomach? |- |CORRECT |
ANSWER✔✔-d. |Simple |columnar |epithelium
16) |Hepatocytes |make |up |80% |of |the |cells |in |the |liver. |They |are |quite |large |cells |with |(on |
average) |a |diameter |of: |- |CORRECT |ANSWER✔✔-a. |20-30µm
, 17) |What |is |the |major |secretion |from |Brunner's |glands? |- |CORRECT |ANSWER✔✔-b. |
Bicarbonate-rich |mucous
18) |From |liver |lobules, |the |central |veins |eventually |join |together |to |form |which |structure? |- |
CORRECT |ANSWER✔✔-the |hepatic |vein
19) |The |crypts |of |Lieberkuhn |are |NOT |burial |places |for |suspected |vampires |in |an |obscure |part |
of |Eastern |Europe. |They |are |best |described |as: |- |CORRECT |ANSWER✔✔-e. |Glandular |
structures |at |the |base |of |the |villi, |located |within |the |mucosa
20) |Which |of |the |following |best |describes |plicae |- |CORRECT |ANSWER✔✔-c. |Thickenings |
primarily |of |the |submucosa |that |form |ring-like |ridges |along |the |small |intestine, |on |top |of |
which |the |mucosa |lies
21) |The |lumen |of |every |blood |vessel |is |lined |by |a |monolayer |of |what |cell |type? |- |CORRECT |
ANSWER✔✔-e. |endothelial |cells
22) |Which |of |the |following |is |the |correct |conduction |pathway |through |the |heart? |- |CORRECT |
ANSWER✔✔-c. |SA |node, |AV |node, |bundle |of |His, |bundle |branches, |Purkinje |fibers
23) |The |contractile |activity |of |smooth |muscle |cells |within |which |type |of |blood |vessel |is |
primarily |involved |in |the |control |of |the |organ |blood |flow |and |mean |arterial |pressure? |- |
CORRECT |ANSWER✔✔-d. |arterioles
24) |What |structure |provides |the |pathway |for |the |movement |of |electrical |current |between |the |
cells |of |the |conduction |pathway |and |the |ventricular |muscle |fibers? |- |CORRECT |ANSWER✔✔-d.
|gap |junctions
25) |The |fibrous |skeleton |of |the |heart |is |important |because |it |- |CORRECT |ANSWER✔✔-d. |forces
|electrical |activity |to |be |conducted |through |the |atrioventricular |node.
COMPLETE SOLUTIONS
1) |Stains |are |used |primarily |for |what |purpose |in |microscopy? |- |CORRECT |ANSWER✔✔-d. |To |
help |distinguish |some |parts |of |the |specimen |from |surrounding |regions
2) |Resolution |is |defined |as: |- |CORRECT |ANSWER✔✔-c. |The |minimum |distance |over |which |two |
objects |can |be |distinguished |from |a |single |object
3) |Haematoxylin |is |widely |used |as |a |histological |stain. |What |structures |does |it |tend |to |bind |to |
and |stain |most |intensely? |- |CORRECT |ANSWER✔✔-d. |nuclei |and |rough |endoplasmic |reticulum
4) |The |plasmalemma |is: |- |CORRECT |ANSWER✔✔-b. |a |fluid |phospholipid |bilayer |with |
numerous |proteins |"floating" |in |it
5) |The |three |major |types |of |fibres |in |connective |tissue |are: |- |CORRECT |ANSWER✔✔-a. |
collagen, |elastin |and |reticulin
6) |Cardiac |myocytes |(heart |muscle |cells) |have |nuclei |that |distinguish |them |from |those |of |
smooth |and |striated |muscle. |Which |of |the |following |best |describes |the |nuclei |of |cardiac |
myocytes |- |CORRECT |ANSWER✔✔-e. |they |are |round |nuclei, |usually |in |the |middle |of |fibres, |
often |surrounded |by |other |organelles |such |as |mitochondria, |glyogen |granules
7) |Which |of |the |following |types |of |cells |is |capable |of |contracting |by |itself |to |produce |force |on |
another |cells, |in |a |physiological |role |in |the |body? |- |CORRECT |ANSWER✔✔-b. |myoepithelial |cell
,8) |Which |of |the |following |is |FALSE |about |simple |squamous |epithelia |- |CORRECT |ANSWER✔✔-
c. |they |consist |of |several |layers |of |squamous |cells
9) |Which |of |the |following |is |not |true |about |the |bladder |epithelium? |- |CORRECT |ANSWER✔✔-
the |cells |on |the |luminal |surface |of |the |bladder |epithelium |are |columnar |in |shape
10) |The |cells |that |"insulate" |nerve |cell |axons |outside |the |central |nervous |system, |and |which |
cause |their |action |potentials |to |propagate |more |rapidly |than |would |otherwise |be |the |case |are |
called: |- |CORRECT |ANSWER✔✔-a. |Schwann |cells
11) |Which |region |of |gut |is |characterised |by |the |presence |of |villi? |- |CORRECT |ANSWER✔✔-e. |
The |whole |small |intestine |(duodenum, |jejunum |and |ileum)
12) |Which |of |the |following |types |of |cell |produces |an |exocrine |secretion? |- |CORRECT |
ANSWER✔✔-b. |Goblet |cells
13) |What |are |the |main |types |of |immune |cells |found |in |lymphoid |tissue |in |the |gut |wall |(ie: |gut-
associated |lymphoid |tissue |or |GALT)? |- |CORRECT |ANSWER✔✔-e. |Mast |cells
14) |Starting |at |the |end |nearest |the |mouth |(proximal) |and |progressing |distally, |which |is |the |
correct |order |of |organs |of |the |gastrointestinal |tract: |- |CORRECT |ANSWER✔✔-b. |oesophagus, |
stomach, |small |intestine, |colon
15) |Which |type |of |epithelium |forms |the |mucosal |lining |of |the |upper |stomach? |- |CORRECT |
ANSWER✔✔-d. |Simple |columnar |epithelium
16) |Hepatocytes |make |up |80% |of |the |cells |in |the |liver. |They |are |quite |large |cells |with |(on |
average) |a |diameter |of: |- |CORRECT |ANSWER✔✔-a. |20-30µm
, 17) |What |is |the |major |secretion |from |Brunner's |glands? |- |CORRECT |ANSWER✔✔-b. |
Bicarbonate-rich |mucous
18) |From |liver |lobules, |the |central |veins |eventually |join |together |to |form |which |structure? |- |
CORRECT |ANSWER✔✔-the |hepatic |vein
19) |The |crypts |of |Lieberkuhn |are |NOT |burial |places |for |suspected |vampires |in |an |obscure |part |
of |Eastern |Europe. |They |are |best |described |as: |- |CORRECT |ANSWER✔✔-e. |Glandular |
structures |at |the |base |of |the |villi, |located |within |the |mucosa
20) |Which |of |the |following |best |describes |plicae |- |CORRECT |ANSWER✔✔-c. |Thickenings |
primarily |of |the |submucosa |that |form |ring-like |ridges |along |the |small |intestine, |on |top |of |
which |the |mucosa |lies
21) |The |lumen |of |every |blood |vessel |is |lined |by |a |monolayer |of |what |cell |type? |- |CORRECT |
ANSWER✔✔-e. |endothelial |cells
22) |Which |of |the |following |is |the |correct |conduction |pathway |through |the |heart? |- |CORRECT |
ANSWER✔✔-c. |SA |node, |AV |node, |bundle |of |His, |bundle |branches, |Purkinje |fibers
23) |The |contractile |activity |of |smooth |muscle |cells |within |which |type |of |blood |vessel |is |
primarily |involved |in |the |control |of |the |organ |blood |flow |and |mean |arterial |pressure? |- |
CORRECT |ANSWER✔✔-d. |arterioles
24) |What |structure |provides |the |pathway |for |the |movement |of |electrical |current |between |the |
cells |of |the |conduction |pathway |and |the |ventricular |muscle |fibers? |- |CORRECT |ANSWER✔✔-d.
|gap |junctions
25) |The |fibrous |skeleton |of |the |heart |is |important |because |it |- |CORRECT |ANSWER✔✔-d. |forces
|electrical |activity |to |be |conducted |through |the |atrioventricular |node.
