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Obs Gynae > Relevent Anatomy > Flashcards

Relevent Anatomy Flashcards

1
Q

Other name for Müllerian ducts

For wolfian duct

A

Paramesonephric

Mesonephric

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2
Q

Which of the following is false

  1. Müllerian ducts are lateral to wolfian ducts
  2. Both ducts appear in foetus at 8weeks
  3. Müllerian duct disappears in male at 9 weeks
  4. Müllerian duct disappears due to MIS (mullerian inhibiting substance)
  5. Wolffian duct disappears in female at 10weeks
A

2 and 5 are false
Both ducts appear at 6 weeks of gestation
Wolffian duct in female and Müllerian duct in male both disappears at 9 weeks of gestation

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3
Q

Source of MIS

A

Sertoli cells

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4
Q

Ipsilateral release of MIS from testes will cause what

A

Disappearance of Müllerian duct of same side

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5
Q

Müllerian duct forms

A

Uterus
Cervix
Fallopian tube
Upper 2/3rd of vagina

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6
Q

Wolffian duct forms

A 
Seminal vesicles 
Ejaculatory duct
Epididymis 
Ductus deferens
When testosterone acts on the wolffian duct it converts into male internal genitalia
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7
Q

Remnants of mullerian duct will be present in male or female and name them
Remnants of wolfian duct will be present in male or female and name them

A

Male child ,appendix of testis
Female child ,
Epoophoran (cranial remnant of duct )
Paroophoron (caudal remnant of mesonephric tubule )
Gartner’s duct (caudal remnant of mesonephric duct )
Hydatid of morgagni

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8
Q

Relation of paroophoron ,epoophoron, gartner’s duct, hydatid of morgagni with broad ligament

A

Paroophoron is medial part of broad ligament

And the rest i.e epoophoron , gartner’s duct, hydatid of morgagni lateral part of broad ligament

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9
Q

D/d of cyst on lateral wall of vagina

A

Anterolateral wall of vagina - gartner’s duct cyst

Posteriolateral wall of vagina - bartholin’s duct cyst

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10
Q

Where does garter’d duct open

A

Lateral wall of vagina

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11
Q

Mc cyst of vagina

A

Inclusion cyst

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12
Q

How is uterus formed
At what period of gestational age is uterus formed
Cavity of uterus is formed when
Septum dissolution is in high direction

A

Mullerain duct lateral to wolfian duct comes in midline and fuse to form uterus
10 weeks
*fusion begins in centre and then more cranial and caudal
18 weeks
Caudalto cranial

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13
Q

Internal genitalia differentia into male and female at what age

A

10 weeks

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14
Q

Mc mullerian anomaly is

A

Septate uterus

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15
Q

Appearance of uterus on Saggital section and coronal section
Gross appearance of uterus

A

Cleft like and triangular

Pyriformis

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16
Q

Weight of uterus in nulliparous and multiparous

A

50-70gm nulliparous

80gm multiparous

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17
Q

Length of uterus

A

6-8cm long

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18
Q

Volume of non pregnant female uterus

A

10ml cube

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19
Q

Weight of pregnant uterus

A

1000gm / 1.1kg `

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20
Q

Volume of uterus at term

A

5L

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21
Q

Which of the following is false

  1. Uterus undergoes hypertrophy more then hyperplasia
  2. Pregnant uterus weighs 1.1kg where as normal uterus weighs 50gm
  3. Pregnant uterus volume 5L where as normal uterus volume 10ml
  4. Weight of uterus at 6 weeks post partum is 80-100gms
A

All of the following statements are true

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22
Q

At what level uterus opens into cervix

A

Internal os

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23
Q

Isthmus is present between what

A

Anatomical and histological internal os (just 1cm)

*histological internal os is below anatomical internal os

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24
Q

At what time LUS is formed
It is formed by
And during labour it is formed by
At term the length of LUS

A

Begins forming after 1st trimester
Formed by isthmus
During labour LUS formed by isthmus + cervix (known as effacement )
5cm which stretch to become 10cm and by that time the pt. goes into labour +Ca is taken up

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25
Q

Where is LSCS done(site)

A

At LUS (below loose fold of peritoneal attachments )

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26
Q

In OT while doing LSCS how to identify the LUS

A

Loose fold of peritoneal attachment is through which we identify

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27
Q

Most common incision for uterus for LS
2nd incision
3rd incision
And the risk of rupture

A

Lower segment pfannensteil or transverse incision -KERRS incision (0.2-1.5%)
lower segmentVertical incision-KRONIGS incision (1-7%)
Upper segment vertical incision-CLASSICAL incision (4-9%)—WEAKEST

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28
Q

Weakest incision for LSCS

A

Classical

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29
Q

Indications of classical incision for LSCS

A

Only indication (absolute) for classical : Ca cervix
Others
-dense adhesions b/w L.S and bladder
-very preterm LS
-post mortem CS
-anterior located placenta previa (only if a not trained doctor )
Ans : for ant. PP

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30
Q

Technique of LSCS

Advantage

A

Joel Cohen : blunt dissection technique (only small incision with scalpel on LUS and layers are separated by fingers

  1. Less blood loss
  2. Less time to reach
  3. Less operative time
  4. Less post op. Pain
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31
Q

3 structures attached to upper part of uterus and their ant.-post. Relations + sup.-inferior relations with each other
MC mistake made here is what and occurs due to what

A 
Round ligament 
Fallopian tube 
Ovarian ligament 
- ant.-post. R
   RL        FT        OL
(Ant)                 (Post.)
-sup.-inf.R
   FT- superior 
   RL/OL:same level below FT
-failure of sterilisation 
-occurs due to ligation of the wrong structure
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32
Q

Structures derived form GUBERNACULUM

A

Proximal part - ovarian ligament

Distal part - round ligament

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33
Q

Canal of nuck

A

+ in foetus only

It is a fold of peritoneum in foetus that contains round ligament and extends into inguinal canal

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34
Q

What pulled the uterus anteriorly in its opinion

A

Round ligament

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35
Q

What attaches uterus to ovaries

A

Ovarian ligament

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36
Q

Main supports of uterus

  1. Mackendrodt
  2. Broad ligament
  3. Cardinal ligament
  4. Pubocervical
  5. levator ani
  6. Uterosacral
  7. Round ligament
A
  1. Mackendordt
  2. Cardinal
  3. Levator ani
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37
Q

Supports of uterus

A

Ant- pubocervical
Post- uterosacral
Lateral- mackenrodt aka cardinal ligament aka transverse cervical ligament
Inferiorly- levator ani

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38
Q

Main ligament or support of uterus

A

Main ligament :cardinal ligament/transverse cervical / mackendrodt

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39
Q

Triradiate ligament

A

Illiococygeous
Pucococcygeous (mainly this one )
Puborectalis

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40
Q

Muscles attached to perineal body

A 
Sup. And deep transverse perinei 
Bulbospongious
Levator ani 
External anal sphincter
External urinary sphincter
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41
Q

Antevered and antiflexed explain

A

Angle b/t cx and vagina -90degree : anteverted

Angle b/t long axis of uterus and cx : anteflexed :120degree(approx120-170)

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42
Q

If fundus is towards bladder it is known as

If fundus towards sacrum known as

A

Antiflexed

Acute retro flexion

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43
Q

Main ligament for antiversion and anti flexion

A 
Round ligament (mainly )
(Round ligament+pubocervical)
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44
Q

Which ligament prevents retroversion

A

Uterosacral

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45
Q

Which layer is known as the living ligature of uterus

A

Middle myometrium layer arranged in crisis cross fashion is called the living ligature of uterus

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46
Q

Which of the following is false

  1. Uterus is a muscular organ
  2. Uterus mainly made of myometrium:2.5cm thick
  3. Fundus is part which lies above the attachment of Fallopian tube
  4. Antiversion and anti flexion present in 80% of the female
  5. Their are 2 layers in the myometrium (Criss cross and circular)
A 
5th is false 
Their are 3 layers in the myometrium 
Outer : longitudinal 
Middle : Criss cross (living ligature )
Inner : circular (sphincteric action )
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47
Q

3 areas of sphenteric action of inner layer

A

2cornu or Ostia and 1 internal os

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48
Q

Blood supply Of uterus

A

Uterine A. Which is a br. Of anterior internal iliac A.
Uterine A. Gives the rest of the br.
Arcuate A. — supply outer 2/3 rd of myometrium
Radial A.-2 branches (basal and spiral)— supply inner 1/3 rd of myometrium
Basal A.-supply basal endometrium (take part in regeneration)
Spiral A. - supply superficial endometrium (shed off during menstrual cycle )(aka functional)

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49
Q

What is water under bridge

A

Uterine artery runs parallel to the ureter

Therefore horizontal position of uterine artery runs above the peristaltic movements of ureter

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50
Q

Mc site of ureteric injury

2nd mc site of ureteric injury

A

Water under bridge

Pelvic brim - where it is crossed over by ovarian vessels

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51
Q

Location of water under bridge

A

2cm lateral to cervix or 1.5cm lateral to fornix

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52
Q

Artery suppling round ligament

A

Uterine artery gives a special br. Samson’s A.

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53
Q

Blood supply of cervix

A

Descending cx artery which is a br of uterine A.

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54
Q

Blood supply of upper 1/3rd of vagina

A

Descending vaginal branch of uterine artery

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55
Q

Nerve supply of uterus

Ganglion for uterus nerve supply

A 
T10
T11
T12
L1
Responsible for pain sensation during uterine contractions 
Franken hauser ganglion
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56
Q

Epidural analgesia
Level of block
Type of block
Mc drug used

A

Aka labour analgesia (cause painless labour)
T10
Sensory block
Bupivacaine 0.25%

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57
Q

M.c anaesthesia used for LSCS
Location
Why t4

A

Spinal anaesthesia
T4
To block nerve supply of peritoneum (sensory block )

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58
Q

Anaesthesia used in force

Done when

A

Pudendal nerve block
Only when complete dilatation (head at +3 station )
Q

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59
Q

Pudendal nerve is present where
Pierce which ligament
Direction

A

Present in pudendal canal present behind ischial spine
Saccrospinous ligament
Posterio medial

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60
Q

Lymphatic drainage of uterus

A

Internal iliac L.N (mainly )
External lilac
Superficial iliac
Fundus - para aortic LN

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61
Q 
Cervix -
Gross shape 
Canal 
Length 
Opens into vagina at what level
A

Conical shape
Fusiform /spindle shape
3-4cms
At external os

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62
Q

Shape of cervix in nulliparous and in multiparous

A

Nulliparous : circular

Multiparous : transverse slit

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63
Q

Uterus is made of

Cervix is made of

A 
Muscle 
Connective tissue (mainly collagen) and only 10% is made of muscle
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64
Q

Lining epthileum of the following
Uterine endometrium
Endo cx
Ecto cx

A

Single layer of columnar epithelium
Tall columnar epithelium
Stratified squamous epithelium

65
Q

Glands in the following
Uterine endometrium
Endo cx

A

Simple tubular glands

Compound racemose glands

66
Q

Arbor vitae

A

Characteristic feature os Cx

Represents branching of glands in endo Cx

67
Q

Mc site for both premalignant and malignant lesions of Cx

A

Transformation zone

68
Q 
What is the thickness of uterine endometrium in the following stages 
On day 5 or immediately after menses 
Periovulatory phase 
Secretory phase 
At time of implanatation
A

On day 5 or immediately after menses :0.5mm
Periovulatory : 2-3mm
Secretory phase : 6mm
At time of implanatation : 10-12mm

69
Q 
What is the change in the ratio that occurs b/t cervix : corpus 
At birth 
Before puberty 
After puberty 
Reproductive life 
Menopause
A 
Cervix : corpus(body of uterus)
At birth 1:1
Before puberty 2:1 
After puberty 1:2
Reproductive life 1:3 
Menopause 1:1
70
Q

Nerve roots for pudendal nerve

A

S2
S3
S4

71
Q

Which nerve block is given for uterine endometrium

A

Paracervical block
Can be given at 2 and 10 o’clock
Or 4 and 8 o’clock
***never give at 3 and 9 o’clock position

72
Q

Fallopian tube size

A

10cm

73
Q

Medial most part of Fallopian tube

A

Interstitial (intra mural )
Size 1-2cm
Fallopian tube opens through Cornu /Ostia

74
Q

Size of Fallopian tube (length )

A

Interstitial -1 to 2cm
Isthmus - 3cm
Ampulla- 6cm
Fimbrial end (infundibulum)

75
Q

Widest part of Fallopian tube

A

Ampulla

It is also the longest part of ft 6cm

76
Q

Narrowest part of Fallopian tube

A

Interstitial (0.7mm) >isthmus (1mm)

77
Q

Fallopian tube epithelium

A

Single layer of ciliated columnar epithelium

78
Q

Site of fertilisation

Mc site of ectopic

A

In Fallopian tube in ampulla

Ampulla because it is the site of fertilisation and it has max. No. Of PLICAE (mucosal folds - crypts)

79
Q

How many days after fertilisation , conceptus remains in F.T

A

3 days

80
Q

Which part of Fallopian tube acts as anatomical sphincter

A

Interstitial part due to circular muscles

81
Q

Which part acts as physiological sphincter

A

Isthmus

82
Q

Is ciliated epithelium present throught the Fallopian tube

A 
No 
Their are other cells also like 
Secretory cells
Ciliated cells
Peg cells : resting cells of Fallopian tube
83
Q

Direction of ciliary muscles

A

Towards uterus

84
Q

Important reason of conceptus movement

A

Peristalsis of Fallopian tube main reason for transport of conceptus

85
Q

Blood supply of Fallopian tube

A

Medial 2/3 rd uterine A

Lateral 1/3 rd ovarian A

86
Q

Lymph node of Fallopian tube

A

Para aortic

*ostia / intramural part drains into superficial inguinal LN

87
Q

Nerve supply of Fallopian tube

Why even unruptured ectopic is painful

A

T11
T12
L1
Reason of Pain is due to stretching f Fallopian tube (t11 ,t12, l1)

88
Q

Total how many recess are their in vagina

A

4 fornix=recess

89
Q

Length of vagina

A

7-10cm

90
Q

Vagina has how many walls

A 
4 walls 
Ant.
Post.
2lateral 
*post wall longer then ant wall by 2cm
91
Q

Deepest fornix of vagina

A

Post. Fornix

92
Q

Lining of vagina

A

Stratified squamous non keratinised

93
Q

Most dependent part of peritoneum

A

Pouch of Douglas

94
Q

Embryological development of vagina

A

Upper 2/3rd :Müllerian duct (mesoderm)

Lower 1/3rd :urogenital sinus (endoderm)

95
Q

Through which part of vagian peritoneal cavity can be reached

A

Pouch of Douglas (rectouterine fold )

96
Q

Which of the following statement is true

  1. Vagina has no glands
  2. Vagina has no secretions
  3. Natural ph of vagina is acidic q
A

1 is true
But vagian has so many secretions
- they come as Transudative secertions across vagianl wall
-as cervical secretions
- bartholin’s gland (only during colitis)
Natural ph of vagina is acidic as it acts as natural defence against infection where as cervical secretions which are alkaline becomes acidic in vagina

97
Q

Cervical secretions are alkaline which becomes acidic in vagina how ?

A

1.Due to commensal bacteria i.e lactobacillus (doderleins bacilli)
And 2. Due to presence of glycogen brought about by estrogen
Imbalance in these causes acidic imbalance
For e.g in bacterial vaginosis - lactobacilli are decreased

98
Q 
Significance of pH change with estrogen in vagina 
During menstruation 
Before puberty and after menopause 
In pregnant female 
New born
A

During menstruation - 3.5 to 4.5 (approx 4 to 4.5 )
Before puberty and after menopause - 6.5 to 7.5 (d/t lack of estrogen )
PH in pregnant female -4
In new born vaginal pH 5.5 to 6 (less acidic ) becoz lining epithelium of vagina is transitional

99
Q

Vagina is made up of 3 types of cells name them

A
  1. Parabasal - seen in menopausal women (predominantly)
  2. Intermediate - predominant under progesterone
  3. Superficial - predominant under estrogen
    It is used to calculate menstruation index ( parabasal : intermediate : superficial )
100
Q 
Calculate the mensturation index of the following 
Pregnancy 
Ovulation 
Post partum
Children 
Menopause 
Atrophic `
A
  1. 0:95:5
  2. 0:30:70
  3. 100:0:0
  4. 80:20:0
  5. 50:50:0
  6. 100:0:0
101
Q

Blood supply of vagina

A

Upper 1/3 rd : descending vaginal artery of uterine
Middle 1/3rd : inferior vesicle
Lower 1/3rd : middle rectal

102
Q

Lymphatic drainage of vagina

A

Upper 1/3rd : external iliac LN
Middle 1/3rd : internal iliac LN
Lower 1/3rd : superficial inguinal LN

103
Q

The following in female external genitalia gives rise to
Genital tubercle
Genital fold
Genital swelling

A

Genital tubercle - clitoris (appears in the flouts at 6th weeks )
Genital fold - Labia minora
Genital swelling - labia Majora

104
Q

What in female body the following parts are homologous to which part of male body

  1. Clitoris
  2. penile urethra
  3. scrotum
  4. prostate
  5. bartholin’s glands
A
  1. clitoris - penis
  2. penile urethra - labia minora
  3. Scrotum - labia majora
  4. Prostate - glands of skene (para urethral glands)
  5. bartholins gland - bulbourethral glands in female aka COWPER’S GLAND
105
Q

Lymphatic drainage of clitoris
Lymphatic drainage of glans clitoris
Clitoris + majora drains into
Glans + minora

A

Superficial inguinal L.N
Drains into deep inguinal L.N aka L.N of cloquet
Superficial

106
Q

Are bartholin’s glands present in males

A

Yes , the are present deeply in males

107
Q

Location of bartholin’s glands in female

A

+ in superficial perineal pouch
Anterior 2/3rd and posterior 1/3rd in the groove b/w majora and minora
* ducts travel forward and medially to open in the vagina outside the hymen
They are pea sized

108
Q

Bartholin’s can give rise to 3 types of cancers . True or false ?

A

True bartholin’s can give rise to all 3 types of cancer due to the lining epithelium it has
Their is different epithelium in the gland -columnar epithelium
Different in the duct - transitional epithelium
And different at opening - squamous epithelium

109
Q

What will be the course of treatment in a pt. with bartholin’s cyst and following condition

  1. Asymptomatic cyst
  2. Asymptomatic cyst + >40 yrs
  3. Symptomatic cyst +<40 yrs
A
  1. Asymptomatic cyst - no Rx
  2. Asymptomatic cyst +>40 yrs - excision ( high risk of cancer)
  3. Symptomatic cyst + <40 yrs - marsupilization (exteriorisation of opening)
110
Q

Mc organism causing bartholin’s gland abscess
Rx
What perevents recurrence

A

E.coli>gonorrhoea
I and D
Word catheter

111
Q

The gonads i.e testis and ovaries arise from

A

Gonadal ridge / genital ridge

112
Q

Why gonads become testis or ovaries

A

D/t presence of Y Chr. —SRY (short arm of Y chr on distal part) if this is absent the foetus has tendency to become female foetus

113
Q

What gene is required for the gonads to become testis

Or to become ovaries

A

Testis - SRY gene

Ovaries - WNT4

114
Q

Which of the following is false
Testis are formed at 7 weeks
Ovary are formed at 8 weeks
Internal genitalia differentiate at 10 weeks
External genitalia differentiate at 12 weeks

A

All are true

115
Q

Differentiation of male and female at what period of gestation

A

If nothing mentioned 12 weeks

116
Q

Boundaries of ovarian fossa

A

Sup: external iliac vessels
Inferior:levator ani
Medial:ovarian ligament
Lateral:obturator nr. And vessels
Posterior:ureter and internal iliac vessels
Anterior:posterior leaf of broad ligament and obliterated umbilical artery

117
Q

Infundibulo pelvic ligament attaches ovary to ….

It carries what

A

It attaches ovary to lateral pelvic wall

It carries ovarian artery and vein

118
Q

Are bartholin’s glands present in males

A

Yes , the are present deeply in males

119
Q

Location of bartholin’s glands in female

A

+ in superficial perineal pouch
Anterior 2/3rd and posterior 1/3rd in the groove b/w majora and minora
* ducts travel forward and medially to open in the vagina outside the hymen
They are pea sized

120
Q

Bartholin’s can give rise to 3 types of cancers . True or false ?

A

True bartholin’s can give rise to all 3 types of cancer due to the lining epithelium it has
Their is different epithelium in the gland -columnar epithelium
Different in the duct - transitional epithelium
And different at opening - squamous epithelium

121
Q

What will be the course of treatment in a pt. with bartholin’s cyst and following condition

  1. Asymptomatic cyst
  2. Asymptomatic cyst + >40 yrs
  3. Symptomatic cyst +<40 yrs
A
  1. Asymptomatic cyst - no Rx
  2. Asymptomatic cyst +>40 yrs - excision ( high risk of cancer)
  3. Symptomatic cyst + <40 yrs - marsupilization (exteriorisation of opening)
122
Q

Mc organism causing bartholin’s gland abscess
Rx
What perevents recurrence

A

E.coli>gonorrhoea
I and D
Word catheter

123
Q

The gonads i.e testis and ovaries arise from

A

Gonadal ridge / genital ridge

124
Q

Why gonads become testis or ovaries

A

D/t presence of Y Chr. —SRY (short arm of Y chr on distal part) if this is absent the foetus has tendency to become female foetus

125
Q

What gene is required for the gonads to become testis

Or to become ovaries

A

Testis - SRY gene

Ovaries - WNT4

126
Q

Which of the following is false
Testis are formed at 7 weeks
Ovary are formed at 8 weeks
Internal genitalia differentiate at 10 weeks
External genitalia differentiate at 12 weeks

A

All are true

127
Q

Differentiation of male and female at what period of gestation

A

If nothing mentioned 12 weeks

128
Q

Boundaries of ovarian fossa

A

Sup: external iliac vessels
Inferior:levator ani
Medial:ovarian ligament
Lateral:obturator nr. And vessels
Posterior:ureter and internal iliac vessels
Anterior:posterior leaf of broad ligament and obliterated umbilical artery

129
Q

Infundibulo pelvic ligament attaches ovary to ….

It carries what

A

It attaches ovary to lateral pelvic wall
It carries ovarian artery and vein
*ovarian artery br. Of abdominal aorta (at L2)
Ovarian vein
-Rt. Side o.vein : IVC
-left side o.vein :left renal vein then IVC

130
Q

Reason for Varicocele

Mc side

A

Left testicular vein joins left renal vein at 90 degree

Left side mc

131
Q

Referred pain of ovary is seen where

Occurs d/t

A

Felt at medial aspect of thighs

Cutaneous br. Of obturator Nr

132
Q

Lymphatic drainage of the ovary

A

Para aortic LN

133
Q

Primordial germ cells are derived from

A

Epiblast (ectoderm)-older days yolk sac

134
Q

Does ovary has capsule

A

Yes ovary has capsule……it is nothing but germinal layer i.e epithelium only
It has single layer cuboidal epithelium ,germ cells are formed here

135
Q

Which of the following are true

  1. No. Of oocytes decrease as age increases
  2. Max. No. Of oocyte are found at 20 weeks of IUL (5month) i.e 7 million
  3. At birth :2 million (1-2million)
  4. At puberty :4,00,000
  5. 400 ovulate in female , 1000 undergo atresia every month
A

All of the following are true

136
Q

What is the sequence of completion of follicular formation and at what weeks

A

Epiblast - yolk sac (at 3weeks)- genital ridge (6weeks) -oogonia (9weeks) - primary oocyte (12 weeks) - follicle formation begins (14 weeks) - follicle formation completes (24 weeks)

137
Q

Oogenesis begins when

A

Intra uterine life

138
Q

Oogonia is diploid or haploid

A

It is diploid which undergoes mitosis

139
Q

When is meiosis completed

A

Just before ovulation ( 3-4 Hours before ovulation )

140
Q

1st meiotic division is arrested in which stage of oogenesis

A

Dictyotene

Prophase - diplotene - dictyotene**

141
Q

Features of 2 degree oocyte are

  1. Genetic material equally divided
  2. Less cytoplasm
  3. Ovum contains 2 degree oocyte
  4. It is haploid (n)
A

1,3,4 all are features of 2 degree oocyte
But less cytoplasm is a feature of 1st polar body
2 degree oocyte has more cytoplasm

142
Q

2nd meiotic division is arrested in which stage of oogenesis

A

Metaphase

143
Q

2nd meiotic division is finished / completed when and what is formed

A

After fertilisation

Female pronucleus and 2nd polar body is formed

144
Q

Size of mature ovum

A

120 micro m in diameter

145
Q

Size of mature follicle

A

18-20 mm

146
Q

Fertilisable life span of ovum

A

24 hrs

147
Q

When does the following process begin
Oogenesis
Spermatogenesis

A

Intrauterine life

Puberty

148
Q

Which stage is absent in spermatogenesis which is present in oogenesis

A

Spermatogenesis does not have any arrest i.e dictyotene

149
Q

1 primary spermatocyte gives birth to how many spermatid

A

4 sperm / spermatid

150
Q

1 spermatogonia gives rise to how many primary spermatocytes

A

16 primary spermatocyte = 64 sperms

151
Q

In 1 day how many spermatid are formed

A

100 million

152
Q

Fertilisable life span of sperm

A

3 days

153
Q

Length of mature sperm

A

55micron (smaller then ovum 120 micro m )

154
Q

Duration of spermatogenesis

A

72 days

155
Q

Time taken by spermatogenesis

A

14 days

156
Q

Achieve maturity and motility at which part of male reproductive system

A

Epididymus

Specific- tail /caudal part of epididymus

157
Q 
Following organelles make what part of sperm 
Nucleus 
Golgibodies 
Mitochondria 
Microtubules
A

Nucleus - head of sperm
Golgibodies - acrosomal cap
Mitochondria - middle piece (power house of sperm)
Microtubules - tail (arrangement 9+2)

158
Q

Which organelle is absent in sperm

A

Endoplasmic reticulum (rough E.R)

159
Q

Ion which is responsible for motility of sperm

A

Calcium

Obs Gynae (7 decks)

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