What event coincides with the transition from the proliferative phase?
What event coincides with the transition from the proliferative phase to the secretory phase? Stratum functionalis is shed. Enrichment of the blood supply and glandular secretions prepare for reception of an embryo.
What ovarian structure forms at the beginning of the secretory phase encouraging its progress and then degenerates just before menses quizlet?
What ovarian structure forms at the beginning of the secretory phase, encouraging its progress, and then degenerates just before menses? The corpus luteum forms at the beginning of the secretory phase and produces hormones that support the uterus. When it degenerates about 12 days later, the uterus enters menses.
Which of the following cells is released during ovulation?
Following a surge of luteinizing hormone (LH), an oocyte (immature egg cell) will be released into the uterine tube, where it will then be available to be fertilized by a male’s sperm within 12 hours. Ovulation marks the end of the follicular phase of the ovarian cycle and the start of the luteal phase.
What anterior pituitary produced hormone works in conjunction with gonadal steroids?
Luteinizing hormone (LH), also called interstitial-cell stimulating hormone (ICSH), one of two gonadotropic hormones (i.e., hormones concerned with the regulation of the gonads, or sex glands) that is produced by the pituitary gland.
What maintains the constancy of the chromosome number from one generation to the next?
What occurs during the secretory phase of the uterine cycle?
The secretory phase of the uterine cycle begins at ovulation. In this phase, the glands become even more complexly coiled and the endometrial lining reaches its maximal thickness, whereas the stratum basalis and myometrium remain relatively unchanged. Note the saw-toothed appearance of the glands.
Which hormone is absolutely necessary for ovulation?
luteinizing hormone (LH)
Which hormone is the necessary trigger for ovulation?
Luteinizing hormone (LH), the other reproductive pituitary hormone, aids in egg maturation and provides the hormonal trigger to cause ovulation and the release of eggs from the ovary.
Which of the following shows the correct pathway for sperm cells as they leave the testes?
Sperm cells pass through a series of ducts to reach the outside of the body. After they leave the testes, the sperm passes through the epididymis, ductus deferens, ejaculatory duct, and urethra.
What part of the female system is the usual site of fertilization?
What is a follicle in ovary?
Normally, ovarian follicles contain egg cells, which are released during ovulation. In polycystic ovary syndrome, abnormal hormone levels prevent follicles from growing and maturing to release egg cells. Instead, these immature follicles accumulate in the ovaries. Affected women can have 12 or more of these follicles.
Which layer of the uterus is made of smooth muscle?
What hormone is produced in the anterior pituitary?
The anterior pituitary gland produces six major hormones: (1) prolactin (PRL), (2) growth hormone (GH), (3) adrenocorticotropic hormone (ACTH), (4) luteinizing hormone (LH), (5) follicle-stimulating hormone (FSH), and (6) thyroid-stimulating hormone (TSH) (Table 401e-1).
Which of the following hormones stimulates the release of anterior pituitary gonadotropins?
As with the male, the hypothalamic hormone GnRH (gonadotropin-releasing hormone) causes the release of the hormones FSH (follicle stimulating hormone) and LH (luteinizing hormone) from the anterior pituitary.