Assessment 4 - Reproductive system Flashcards
Function of Dartos muscle?
Contract and thicken wall of scrotum (raising temp in cold weather)
Name of ducts within testes?
Seminiferous tubules
What cells are found in the seminiferous tubules?
Spermatogenic
Sertoli
Interstitial/ Leydig
Function of spermatogenic cells?
Divide to produce immature sperm
Function of sertoli cells?
Secrete oestrogen and nutrients to prolong survival of sperm
Function of interstitial cells?
Produce testosterone?
Structure and function of epididymides?
Long coiled tube
Stores sperm & allows it to mature
Transport sperm from testis to vas deferens
Function of vas deferens?
Carry sperm from epididymis, via prostate gland, to penile urethra
Composition of spermatic cord
Vas deferens
Testicular artery & vein
Testicular nerve
Lymphatic vessels
Cremaster muscle
Layer of peritoneum (protection)
Name the accessory glands
Prostate glands
Bulbourethral gland (cats)
Function(s) of accessory glands?
Secrete seminal fluid which:
1. Increase vol. of ejaculate 2 aid passage of sperm in2 female tract
2. Aid sperm survival with correct environment
3. Neutralise acidity of urine within eurethra
What holds the ovaries in place next to kidneys?
Ovarian ligament
Function of infundibulum?
Catches and channels the released ova
Location of fallopian tubes?
Connect ovary to uterus
Functions of fallopian tubes/ oviduct (3)
Collect ova from ovary
Transport ova to uterine horn
Good environment for sperm & ova
What lines the fallopian tubes?
Cilia
General uterus structure
Y shaped
Rich blood supply
2 arms = uterine horns
Main stem = uterine body
Location: dorsal abdomen
Layers of the wall of the uterus
Endometrium, myometrium and mesometrium/broad ligament
Function of endometrium?
Provide nutrition for embryo before placenta forms
What is found in the endometrium?
Columnar mucous membrane
Glandular tissue
Blood vessels
What happens to endometrium during pregnancy?
Thickens
What is found in myometrium?
Smooth muscle layers
Function of myometrium and its smooth muscles?
Contraction during parturition
Function of uterine milk?
Provide nourishment for zygote
What is the cervix?
Thick walled muscular sphincter
Apart from muscles, what else is in cervix?
Cartilage
What normally blocks the cervix?
Mucoid plug
What is the purpose of mucoid plug?
Reduce risk of infection in uterus