Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Repro > Sperm transport > Flashcards

Sperm transport Flashcards

1
Q

Organs participating in semen production

A

Testicle: sperm cell formation and small amounts of fluid
Body of epididymis: sperm maturation and epididymal fluid
Accessory sex glands: nutrients and fluids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Penis drop

A

Erection
Nitric Oxide release
pre-ejaculatory secretions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Emission

A

Sperm and accessory gland fluid into pelvic urethra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Ejaculation

A

expulsion of fluids from urethra

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Detumenscence

A

Increased smooth muscle
Contraction of retractor penis
Sacral sympathetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Semen deposition in the vagina

A 
Bull
Ram
Man
Cat
dog
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Semen deposition in the cervix

A

boar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Semen deposition in the uterus

A

camelid
stallion
dog
boar

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the role of the cervix during semen transport

A

Reservoir

Selective barrier

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What role does uterine contractility play is semen trasnprt

A

Propel semen cranially and caudally

Oxytocin release

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What hormones cause uterine contractility

A

PGF2
Estrogen
both from seminal plasma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where does capacition begin

A

Uterus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What induces inflammation and increased polymorphonuclear neurophils into the uterine lumen

A

Spermatozoa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are 3 roles of seminal plasma

A

Decrease duration of inflammatory response
Protects live sperm from PMN binding
Promotes PMN binding with dead sperm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where does fertilization occur

A

ampullla

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the purpose of the oviductal isthmus

A

sperm storage

17
Q

What is a side effect of cryopreservation

A

Removal of seminal plasma

18
Q

Fraction of semen in ruminants

A

1 jet (sperm rich fraction)

19
Q

Fraction of semen in equids

A

5-7 jets (~3 sperm rich fractions and gel fraction)

20
Q

Fraction of semen in swine

A

Gel fraction, sperm rich fraction, and gel fraction

21
Q

Fraction of semen in canine

A

Sperm poor fraction, sperm rich fraction, and prostatic fraction

22
Q

What are causes of immediate loss of sperm?

A

Phagocytosis and retrograde loss (can be prevented with vaginal or cervical plug)

23
Q

Breeding induced endometritis

A

Spermatozoa induce inflammation and influx of polymorphonuclear cells into the lumen, aids in sperm elimination

24
Q

Mechanisms of sperm elimination

A

Phagocytosis, activated PMN’s release PGF2alpha, which causes myometrial contractions

25
Q

How does cryopreservation affect sperm elimination?

A

Interferes with binding to oviduct, removal of seminal plasma leads to loss of protective effect

26
Q

Why would we alter the site of semen deposition in AI?

A

Reduce breeding dose and reduce number of inseminations

27
Q

Function of uterotubal junction

A

Sperm barrier

28
Q

Function of infundibulum

A

Guides oocyte

Repro (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions