Answer:
The best answer to the question: When the corpus luteum degenerates:___, would be, E: All of the above.
Explanation:
The process of human female reproduction is a very complex one. But center in it is the corpus luteum, a structure that develops from a follicle in the ovaries and which will be responsible for producing estrogens and progesterones to maintain pregnany in case there is egg fertilization, or, the dismantling of everything by decaying and thus stopping the outpour of these gonadal steroids. When fertilization occurs, the corpus luteum, by producing estrogen and progestorone, inhibits the further production of LH and FSH, and thus the entire process for a successful pregnancy takes place. But when this does not occur, LH and FSH increase again, progesterone, most especially, decreases, and as a result, the endometrium, which had been prepared for implantation, sloughs off. This is why the answer is E.
The consequences if presynaptic action potentials In an axon release insufficient acetylcholine to depolarize a skeletal muscle fiber to threshold
Explanation:
When an action potential reaches a neuromuscular junction, it causes acetylcholine to be released into this synapse. The acetylcholine binds to the nicotinic receptors concentrated on the motor end plate, a specialized area of the muscle fibre's post-synaptic membrane.
Acetylcholine is the neurotransmitter used at the neuromuscular junction—in other words, it is the chemical that motor neurons of the nervous system release in order to activate muscles. ... In the brain, acetylcholine functions as a neurotransmitter and as a neuromodulator.
