The natural steroid hormones are generally synthesized from cholesterol in the gonads and adrenaline glands these forms of hormones lipids
Jaisnosnka ainaubusbidbudbiabia hs usn
Answer:
Exocytosis of vesicles containing glutamate from the nerve terminal would decrease
Explanation:
Glutamate release is regulated by voltage dependent calcium channels. An increase in intracellular Calcium ion concentration is sufficient and necessary to cause glutamate release from astrocytes. Several experiments are done on this study, when these cells are provided with high amount of calcium ions, the glutamate release from nerve terminals increased.
Answer:
The endometrial lining is shed during menstruation and is then regenerated by the hormone estrogen.
Explanation:
The menstrual cycle can be described in terms of:
1. <u>OVARIAN cycle</u>: divided into
-Follicular phase of variable length lasting between 7 and 21 days.
-Ovulation
-Luteal phase which is fairly constant and lasts between 12 and 16 days.
The most common cycle length is 28 days and this occurs in 15% of women in their reproductive age
.
The duration of flow is between 2-6 days.
2. <u>ENDOMETRIAL cycle</u>: divided into
-Proliferative phase where there is increase in growth of the functional layer and the endometrial glands under the influence of oestrogen.
-Secretory phase where endometrial changes are influenced by progesterone activity.
The endometrium is made up of the basal layer and the functional layer.
The basal layer remains intact throughout the cycle while the functional layer is shed during each menstruation.
