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- label the chick embryo (presumptive stage) 1.2.3.4.5.6.7.8.9.10.Draw and label the parts of GastrulationThe placenta is formed from ________. the embryos mesenchymal cells the mothers endometrium only the mothers endometrium and the embryos chorionic membrane the mothers endometrium and the embryos umbilical cord
- 8:45 AM DO Edit 1. The elastic tissue whlch connects the cauda epldidymls to the scrotal sac Is (a) Caput epididymis (b) Scrotal ligament (c) Gubernaculum (d) Tendinous cord 2 By the contraction of the spermatic cord, the testis of man are not taken to the abdominal cavity due to this structure (a) fat bodies and gubernaculum present over the testis (b) attachment of testis by gubernaculum to the scrotal sacy (c) narrowness of inguinal canal (d) both (b) and (c) 3. The seminiferous tubules of the testis are lined by the germinal epithelium consisting of (a) spermatids (b) cells of Sertoli (c) spermatogonium (d) spermatocytes 4. These cells of the testes secrete testosterone (a) Sertoli cells (b) cells of germinal epithelium (c) Cells of Leydig or interstitial cel (d) secondary spermatocytes 5. There is a connective tissue cord extending between the testis and abdominal wall known as (a) mesenteric cord (b) gubernaculum (c) testis cord (d) spermatic cord 6. Which of these is an…Name 5 new structures that appeared in the 33-hours chick embryo and indicate the germ layer derivative and adult fate. STRUCTURE GERM LAYER DERIVATIVE/S ADULT FATE 1. 2. 3. 4. 5.What is the difference in gastrulation and blastula process?
- C. Development 1. Label the following embryo development stages and cells: zygote; blastocoel, embryoblasts, blastemeres, oruta, blastocyst, zona pellucida, trophoblasts Zuna pellucida Stage: Zy90+€ trophoblest blastucuel empryoblos Stage: OR a Stage: aRaoGastrulation is brought about by an invagination of the blastula. True or False?MATCHING TYPE: PLEASE CHOOSE THE CORRECT ANSWER FOR QUESTIONS 1-3 1. Role of FSH in the menstrual cycle? 2. Role of estrogen in the menstrual cycle? 3. Role of progesterone in the menstrual cycle? A. prepares the endometrial lining of the uterus to allow the fertilized egg to implant and helps to maintain the endometrium throughout pregnancy. B. controls and prepares the lining of the uterus (the endometrium) for a potential during the first part of the cycle. C. prior to ovulation, FSH levels will peak, signaling the ovary to release an egg. Once ovulation has occurred, the levels will return to or dip slightly below the baseline to allows smaller follicles to degenerate. D. stimulates development of the maturing ovarian follicle and controls ovum production. E. increase in thickness of the endometrial lining, correspondingly. F. Day 11 G. both the hormones estrogen and progesterone cause the endometrial lining to thicken to stabilize the uterus in preparation for a possible…
- Not hrife22@tcpsva.org? Switch account * Required The ductus venosus allows blood to bypass the fetal liver O pancreas O small intestine O lungsDISSECTION OF THE FETAL PIG What is the function of the umbilical arteries? What is the function of the umbilical vein? What is mesentery?label the chick embryo 1.2.3.4.5.6.7.8.9.10.