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Test 1 ANSC 333 Questions & answers
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Test 1 ANSC 333 Questions & answers
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Test 1 ANSC 333vascular tissue - ANS-arteries and veins that bring nutrients too cells and remove waste
Mucosa purpose - ANS-Function in secretion (changes in different organs)
Mucosa - ANS-B
Submucosal - ANS-C
Serosa - ANS-E
central lumen - ANS-
Circular muscle - ANS-Smooth muscle with fibers arranged in a circle around an organ,
such as the stomach (contraction)
longitudinal muscle - ANS-The outer layer of smooth muscle in the wall of the digestive
tract. When the longitudinal muscle contracts the tube shortens.
uterine horns - ANS-located on either side of the spin suspended by the broad ligament
orientation allows rectum as a means to track the status of the reproductive tract
(palpating bovine and equine) when an animal is not pregnant it is on the pelvic rim
Muscularis muscles - ANS-Include both circular and longitudinal send things in and out
of the reproductive tract such as sperm and a fetus
peritoneum - ANS-membrane that lines the abdominal cavity
broad ligament - ANS-The ligament extending from the lateral margins of the uterus to
the pelvic wall; keeps the uterus centrally placed and provides stability within the pelvic
cavity.
3 types of broad ligament - ANS-Mesovarium (ovary) mesometrium (uterus)
mesosalpinx (oviduct)
ways of sexual determination - ANS-genetic sex (decided at fertilization by genetics in
oocytes) and phenotype (based on visual characteristics determined later in gestation
end of 1st trimester bovine)
, what is the technical term for an egg (and the only acceptable answer in this class) -
ANS-oocyte
Male sexual development - ANS-1. Testis determining factor (TDF or SRY) turned on
2. Testes develop
3. Sertoli Cells secrete anti-mullerian hormones (AMH)
4. (2 paths) AMH Causes leydig cells to differentiate and degeneration of
paramesonephric duct (both parts present in fetus and is broken down)
5. Leydig cells create male androgens (testosterone and dihydrotesterone)
5. Testosterone makes male duct and DHT makes penis scrotum and accessory sex
glands
Female sexual determination - ANS-No TDF
ovaries
no AMH
PMD becomes oviducts and vagina
*all takes place in the absences of the Y chromosome which makes Testis determining
factor
bipotential gonad - ANS-can become a testis or an ovary and it's fate is determined by
TDF
Paramesonephric Duct - ANS-along with the mesnephric duct regress based on signal
from gonad
Free martin - ANS-twins in cattle where one is female and one is male male calf
produces TDF female doesn't but AMH enters the blood stream (They share a blood
source) and enters into the female causes the gonad to partially develop into a testes
which confuses the XX individual (mixed parts) making her sterile
cow uterus - ANS-
ewe uterus - ANS-
Sow uterus - ANS-
mare uterus - ANS-
bitch uterus - ANS-
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