INCORRECT EXAMPREP Flashcards Preview

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Flashcards in INCORRECT EXAMPREP Deck (36):
1

What type of epithelium lines the oesophagus?

Stratified squamous non-keratinised

2

Which amino acid is important in the buffering action of proteins at physiological pH values?

Histidine

3

Which tissue forms the most superficial layer of the heart?

Visceral pericardium

4

How is it thought mitochondria originated within animal cells?

Absorption of a bacterial cell

5

What is the abdominal cavity lined by?

Peritoneum

6

What is the function of calcitonin?

Acts to DECREASE osteoclast activity and REDUCE bloods calcium levels

7

Synovial joints may undergo degenerative changes - what can this result in?

Arthritis

8

Increased blood flow causes which symptom in acute inflammation?

Heat

9

What has 9 peripheral triplets but no central microtubule doublet?

Basal bodies

10

What has a 9+2 microtubule arrangement and can be 50 microns long?

Flagella

11

What is the main function of NK cells?

To destroy virus infected cells

12

What response to damage would be associated with a labile cell system?

Renewal of intestinal epithelial cells

13

The stratified squamous keratinised epithelium of thick skin has 5 distinct layers. Which of these layers is held together by desmosomes and undergoes active protein synthesis to make cytokeratin?

Stratum spinosum

14

What type of connective tissue forms the papillary layer of the dermis?

Loose connective tissue

15

Reduced expression of this protein may aid tumour metastases?

Cadherin

16

What protein is found in tight junction?

occludin

17

What protein is found in gap junction?

connexin

18

What protein is involved in adhesion between epithelial cells?

cadherin

19

What cell is a granulocyte that can become a phagocyte in the GI lamina propria?

Basophil

20

What cell is a granulocyte that can become a phagocyte inside pulmonary alveoli?

neutrophil

21

What cells are circulating blood leukocytes that play important roles in the inflammatory response, are essential for the innate response to pathogens?

monocytes

22

Why is DNA synthesis continuous on the leading strand and discontinuous on the lagging strand?

As Dna polymerase adds nucleotides to the 3' end of the dna chain

23

In comparing two types of cells from the same person, the variation in the proteins expressed by each cell type reflects:

The cell specific expression and repression of specific genes

24

What living organism does NOT have a DNA based genome?

Certain viruses

25

Into which vessel does the renal vein drain?

inferior VC

26

Where are eosinophils produced

lymph nodes

27

In which organelle does LDL dissociate from its endocytosed receptor?

endosome

28

What is the thoracic inlet bounded by?

manubrium
first thoracic vertebrae
first pair of costal cartilages
first pair of ribs

29

The tarsals are examples of which types of bones?

Short (cuboidal)

30

Which enzyme converts arachidonic acid into prostaglandins?

Cyclooxygenase

31

What are the major extracellular anions?

Chloride ions

32

What change in a nerve cell is responsible for rapid depolarisation at the beginning of the action potential?

an increase in sodium permeability

33

What does Na+K+ ATPase generate inside the cell?

A negative electrical potential

34

When is the embryonic period of development complete?

8 weeks after fertilisation

35

What is the equilibrium potential?

The membrane potential that would be required to balance the concentration gradient for the ion

36

What type of channels are targeted by local anaesthetics?

voltage gated sodium channels