rando test two questions from all topics

Question 1

what is the average length of the human gestational period

Answer 1

38 weeks

Question 2

the fertilisation age is how many weeks before mentraul age

Answer 2

2 weeks

Question 3

at which stage of embryo development does it implant into the uterus

Answer 3

when it is a blastocyst

Question 4

which process occurs in the third week causes the transformation of the embryonic disk to the trilaminar sdisk

Answer 4

gastrulation

Question 5

which germ layer does respiratory epithelium derive from

Answer 5

endoderm

Question 6

which directions does embryo folding occur

Answer 6

crania-caudally and lateral

Question 7

what risk does cytomegalovirus have on the foetus

Answer 7

it can cause cerebral calcification

Question 8

what induces the ectoderm to thicken to form the neural plate

Answer 8

the notochord

Question 9

failure of fusion of the anterior notochord causes what

Answer 9

anencephaly

Question 10

where is fertilisation most likely to occur

Answer 10

in the ampulla

Question 11

fertilisation age occurs in three stages what are they

Answer 11

early
embryonic
foetal

Question 12

following cleavage and fertilisation what is the formation called

Answer 12

blastocyst

Question 13

what chemical process must occur for the sperm to enter the ovum

Answer 13

acrosome reaction occurs in the sperm to allow it to penetrate the zone pellucida

Question 14

which groups of cells forms the embryo proper

Answer 14

epiblast cells

Question 15

which germ layer derives all epithelial linings

Answer 15

endoderm

Question 16

neuraltion is initiated by which structure

Answer 16

notochord

Question 17

why does embryonic folding occur

Answer 17

due to the increasing weight of the amniotic cavity

Question 18

where does neural folding first occur

Answer 18

in the cervical region

Question 19

which orgasnims causes dysentary

Answer 19

entamoeba histolytica

Question 20

which parasite transmits plasmodium falciparum to humans

Answer 20

mosquitos

Question 21

what type of parasitic worms are flat and unsegmented

Answer 21

trematodes (flukes) eg schistosome haematobium

Question 22

what is the intermediate host for the tapeworm taenia solium

Answer 22

pig

Question 23

what sort of orgasnim causes athletes foot

Answer 23

fungus

Question 24

what is the basic structure of a virus

Answer 24

protein coat with protein core with nucleic acid can be DNA or RNA

Question 25

which virus causes the common cold

Answer 25

rhinovirus

Question 26

how does varicella zoster virus cause shingles many years after it causes chicken chicken pox in a person

Answer 26

iies dormant in sensory nerve roots

Question 27

name diseases caused by prions

Answer 27

CJD, vCJD, Kuru

Question 28

what is cystitis

Answer 28

infection of the lower urinary tract caused by infection with gut bacteria such as eschericia coli

Question 29

what are the symptoms of norovirus

Answer 29

vommiting and diarrhoea

Question 30

what organism causes tetanus (lockjaw)

Answer 30

clostridium tetani

Question 31

what type of infection is malaria

Answer 31

parasitic

Question 32

a disease passed from the mother to the foetus is called what and give an example

Answer 32

vertical

rubella

Question 33

what is the mechanism of cholera

Answer 33

activates adenylyl cyclase which increases cAMP - less Na absorbed and more cl - secreted into lumen causes osmosis of water into lumen causing diarrhoea

Question 34

antibiotics should not be given to people with cold or flu - why

Answer 34

they are caused by viruses so will only aid to antibiotic resistance

Question 35

why should someone with TB be isolated in a negative pressure room

Answer 35

stop spread airborne virus

Question 36

name diseases which we don’t have vaccines for

Answer 36

HIV HCV malaria meningococcus group B

Question 37

which vaccine can help against cervical cancer

Answer 37

HPV