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MED 310 > extra > Flashcards

extra Flashcards

1
Q

what is present between afferent and efferent fibres of spinal nerves

A

interneuron

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2
Q

stepping on something sharp

A

crossed extention coupled with withdrawal reflex

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3
Q

what does a stimulus do to a receptor

A

inc its permeability, causing non selective opening of all ion channels causing influx of sodium and depolarization

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4
Q

what has no refractory period

A

receptor

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5
Q

where are tertiary sensory neurons

A

in thalamus

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6
Q

tactile receptors in skin phasic or tonic

A

phasic

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7
Q

muscle stretch and joint phasic or tonic

A

tonic

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8
Q

what displays labelled line coding

A

somatosensory

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9
Q

what neurons do lateral inhibition

A

secondary neurons in spinal chord or medulla

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10
Q

neuron firing in wakeful state

A

not coordinated due to RAS

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11
Q

what hapepns to the two cells produced by the mitotic division of the spermatogonia

A

one goes to the germ line to maintain it

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12
Q

what hapepns to the two cells produced by the mitotic division of the spermatogonia

A

one goes to the germ line to maintain it
one goes to lumen to undergo spermatogenesis

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13
Q

when do sperm cells stop sharing cytoplasm

A

between spermatid and spermatozoa

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14
Q

process of spermatid to spermatozoa

A

spermiogenesis not spermatogeneiss

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15
Q

where are spermatozoa stored and concentrated

A

epidydimis

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16
Q

how is semen quality measured

A

spermiogram

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17
Q

where does sperm emission occru

A

in the urethra

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18
Q

how is the erection generating centre triggered

A

mechanically by touching glans penis

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19
Q

what does cGMP maintain

A

corpus cavernosum relaxation

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20
Q

ICSI what type of oocyte

A

MII

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21
Q

what develops into the fetal portion of the placenta

A

tropoblast

22
Q

what does the inner cell mass of the blastocyst become

A

fetus

23
Q

decidua

A

endometrium

24
Q

what secretes hCG

A

tropoblast cells

25
Q

where is the blastocyst when implantation finishes

A

buried in the endomedrium

26
Q

when do braxton hicks contractinos occur

A

during latee gestation

27
Q

what happesn during late gestation

A

fetus shifts downwards snad drops
softening of cervix by relaxin and CL of pregnancy
braxton hicks contarctions

28
Q

what produces relaxin

A

placenta

29
Q

onset triggers of parturuition

A

high CRH, high estrogen, inflamatory respones

30
Q

why does uternien onvolution take place

A

because estrogen and progesterone drop rapidly bc placental source is gone

31
Q

lochia

A

remainig endometrial tissue shed as normal vaginal discharge

32
Q

how many weeks is premature

A

3

33
Q

what stimulates hCS

A

high estrogen

34
Q

what initiates lactatio

A

sudden drop in progesteron and estrogen after delivery

35
Q

lobule number per breast

A

15-20

36
Q

where are alveoli

A

in lobules

37
Q

mulk producing unit

A

alveolus clustered into terminal lobules

38
Q

how is milk deliverred to nipple

A

duct system

39
Q

when are mammary glands functional and alveolar ductal system functional

A

mammary glands prepare during pregnancy and alveoli not functional until after birth

40
Q

wehn is mature milk produced

A

25 days

41
Q

when is collustrum produced

A

3 days

42
Q

contains immunity factors, minerals, protein, rediness for newbron GI tract to have a microbiome

A

collustrum

43
Q

what are the defensice agents in breastmilk

A

mucus, lactoferrin (iron binding to inhibit bad gut bacteria) stimulatro ymolecule for good gut bacteria (bifidus factor)

44
Q

hormones that are permissive for lactation

A

cortisol, insulin, PTH, GH

45
Q

galactogogues

A

increase PROLACTIN hormone in women insuffieicntj in mmilk production

46
Q

what suppreses menstrual cycle

A

breastfeeding, LH and FSH suppressed

47
Q

feedback of oral contracceptives

A

negative

48
Q

clamping oviduct

A

tubal ligation

49
Q

what do oral cnotraceptives do

A

supress FSH and LH for 21 days then off for 7 days

50
Q

what does morning after pill do

A

synthetic progesterone effective up to 5 day

MED 310 (47 decks)

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