Reproductive Anatomy and Hormones: A Key to Understanding Mammalian Reproduction, Quizzes of Animal Biology

Download Reproductive Anatomy and Hormones: A Key to Understanding Mammalian Reproduction and more Quizzes Animal Biology in PDF only on Docsity! TERM 1 Contains thousands of follicles and corpus lutea? DEFINITION 1 Ovary TERM 2 Fertilization occurs here? DEFINITION 2 Oviduct ( fallopian tube ) TERM 3 This organ becomes firm during heat and the place where the semen should be deposited when doing AI? DEFINITION 3 Uterus ( uterine body ) TERM 4 In the reproductive tract, this is found between the uterus and the vagina DEFINITION 4 Cervix TERM 5 This reproductive structure leads to the outside of the animal and is a thin muscular wall. DEFINITION 5 Vagina TERM 6 External opening of vagina DEFINITION 6 vulva TERM 7 The reproductive tract can be palpated through this structure. DEFINITION 7 Rectum TERM 8 Produce hormone testerone DEFINITION 8 Testes TERM 9 layer of skin around the testis DEFINITION 9 Scrotum TERM 10 carries sperm from the testis DEFINITION 10 spermatic cord TERM 21 Prostaglandin F2a DEFINITION 21 Source is the Uterus. Targets the corpus luteum, uterus, and graffin follicles. Functions in regression of the CL, uterine contraction, and ovulation. TERM 22 Placental lactogen DEFINITION 22 comes from the placenta. targets the mammary gland. Functions to promote lactation. TERM 23 Relaxin DEFINITION 23 comes from the ovary. Targets the cervix and pelvis. Functions in cervical dilation, pelvic expansion, and initiation of parurition. TERM 24 Cortisol DEFINITION 24 comes from the adrenal gland, targets the Dam's uterus. Functions in initiation of parturition. TERM 25 Melatonin DEFINITION 25 comes from the pineal gland. Targets the hypothalamus. functions partial control of seasonal reproductive patterns. TERM 26 Before the 21 day cycle, what hormones causes regresssion of the corpus luteum? DEFINITION 26 Estrogen TERM 27 This hormone spikes and causes ovulation at day 0? DEFINITION 27 Lutenizing hormone TERM 28 What hormone is high during the 21 day cycle and helps develope the corpus luteum? DEFINITION 28 Progesterone TERM 29 At the end of the 21 day cycle, what hormone helps develope the follicle? DEFINITION 29 Estrogen TERM 30 How much must a producer average in calf crop to meet production expenses? DEFINITION 30 more than 85% TERM 31 To reach your calf crop and weaning weight goals, what 3 areas are essentail? DEFINITION 31 1. controlled calving/ breeding season2. Strategic supplementation3. Herd Health TERM 32 What is the most important management decision in a beef operation? DEFINITION 32 establish a controlled calving season TERM 33 What is the optimum breeding season length? DEFINITION 33 60 days TERM 34 When can pregnancy checking of heifers be done? DEFINITION 34 1. Rectal palpation after 35 to 90 days2. Ultrasound examination after 30 to 90 days3. blood analysis after 30 days TERM 35 Why should heifers be rebred two to three weeks for the cows? DEFINITION 35 because they are difficult to rebreed on a yearly calving schedule