Reproduction Anatomy Flashcards
Are are the three types of uteruses
Duplex
Bicornuate
Simplex
What animals have a duplex uterus
Opossum
Rabbit
Mouse
What is a duplex uterus
2 cervixes
NO uterine body
1-2 vaginas
What is a bicornuate uterus
1 cervix
Uterine body/ horns
1 vagina
What animals have a bicorunate uterus
Cow
Sow
Ewe
Bitch
What animals have a simplex uterus
Primate
What is a simplex uterus
1 cervix
Uterine body
NO uterine horns
1 vagina
True or False: mice have uterine horns
False
True or False: a duplex uterus has a uterine body
False
True or False: a bicornuate uterus has a uterine body
True
What is special about a sow’s uterus?
They have extremely long uterine horns for multiple births(litter)
What holds uterine horns?
Broad ligaments
Function of annular rings
Has to remain open to expel offspring or to allow sperm cells to pass through
Types of cervical differences
Annular rings
Longitudinal folds
Interdigitating prominences
Which animals have annular rings
Cow
Ewe
Which animal has longitudinal folds
Mare
Which animal has interdigitating prominences
Sow
True or False: only the left side of the reproductive tract in birds is developed
True
Vulva function
Outer covering
Labia function
Interior of vulva
Acts as a seal
Real protection
Clitoris
Similar to glans penis in males
Vagina
Interior
Bladder stems off
Cervix
Beyond vagina
Made of cartilage
Uterus
Semen deposited in AI
Where baby grows
Where do bull and sheep ejaculate
Vagina
Where do boars ejaculate
Cervix
Ovidcut
Extends from horns to ovaries
Where does the embryo float around until implantation
Oviduct
What are the 3 parts of the oviduct
Isthmus
Ampulla
infundibulum
What does the infundibulum do
Captures ovulated eggs
Ampullary- Isthmic junction
Where fertilization occurs
Btwn isthmus and ampulla
Uterotubal junction function
Helps ensure survival of the fittest to sperm
How many sperm will pass through the uterotubal junction
A few hundred
What hormones do the ovaries produce
Estrogen
Progesterone(P4)
What are the 3 basic structures of the ovaries
Follicle
Corpus luteum
Corpus albicans
Follicle function
Contains maturing egg
What happens when a follicle is fully mature?
Ruptures then releases egg
Corpus luteum function
Tissue that develops on ovary where an ovum has been shed
What happens to the CL when conception occurs?
Becomes functional and produces progesterone
What comes before the corpus luteum?
Corpus hemorrhagicum
Corpus albicans function
Tiny scars
Forms after CL lyses
How are follicles classified
Normal
Atretic
What does normal mean in context of follicles
Healthy
What does arteric mean in context of follicles
Degenerating
Where is the embryo embedded
Endometrium
What environment is ripe for infection in the uterus
Endometrium
What are the 3 layers of the uterus
Perimetrium
Myometrium
Endometrium
What is optimal sperm production
2-3 degrees below temperature
Where do mammalian testes originate
Kidneys
Which animals’ testes do not descend at birth
Whale
Dolphins
Pachyderms
Armadillo
Birds
Scrotum
Thermosensor
Protective sac
Spermatic cord
Contains testicular artery
Spermatic vein
Nerves
Vas deferens
External and internal cremaster muscle
External Cremaster and tunica dartos muscle
Regulates temperature by moving testes closer to or farther from body wall
Pampiniform plexus
Heat exchange
Testosterone exchange
Pulse pressure eliminator
What does a lower scrotum affect blood pressure
Higher bp
Sheath
Correct angulation desired
What muscles function is lost with castration
Tunica Dartos
What emotions does cremaster muscle deal with
Fear
Excitement
True or False: pampiniform is necessary for testosterone
False. It’s necessary for spermatogenesis
What produces testosterone
Testes
What produces sperm cells
Testes
What does a vasectomy get rid of
Sperm, but not testosterone
Epididymus
Collects and stores sperm
Parts of epididymus
Head
Body
Tail
What do the head and body of the epididymus do
Prepares sperm to be mature
What does the tail of the epididymus do
Stores Sperm
List secondary sex organs
Vas deferens
Urethra
Penis
Vas deferens function
Passageway did sperm/ejaculate mix
Causes ejaculation(peristalsis)
Urethra function
Passageway for semen and urine
Penis function
Organ of copulation
Which animals have a fibroelastic penis
Boar
Bull
Ram
Which animals have a vascular penis
Horse
Dog
Man
Parts of the shaft
Corpus cavernosum
Corpus spongiosum
Corpus cavernosum function
Spongy
Erectile tissue
A majority of shaft
Corpus spongiosum
Around penile urethra
What are at the ends of a cat’s gland penis
Spikes
What are at the ends of a boar’s gland penis
Corkscrew
Prepuce
Foreskin
What does viagra block
PDE5
What does viagra prolong
cGMP
Accessory sex glands(3)
Prostate
Bulbourethral(cowpers)
Seminal vesicles
What do accessory glands contribute(3)
Seminal fluid volume
Support nutrition of sperm
pH buffers
Seminal vesicles function
Large volume of liquid
Flushes urethra
Sperm transport
True or False: seminal vesicles contain fructose
True
Prostate gland function
Stimulate sperm activity
Bulbourethral or Cowper’s gland function
Provides lubrication and cleansing fluid prior to ejaculation
What is sperm production controlled by
FSH
What stimulates testosterone production
LH
How long does it take for sperm mature
50-60 days
Cryptorchid definition
Testicles didn’t descend when needed