The part of the endometrium that undergoes cyclical changes in response to sexual hormonal levels is the ______.
serosa
functional zone
muscular myometrium
basilar zone
none of the choices is correct
Answer:
functional zone
Explanation:
The endometrium of the uterus is a highly vascularized layer. The endometrium has the innermost of simple columnar epithelium, thick stroma, and the endometrial glands. Functionally, the endometrium has two layers. The functional layer or the functional zone is also called stratum functionalis. It serves to line the uterine cavity and sloughs off during menstruation. The basal layer is deeper and is called stratum basalis. It is permanent and forms a new functional zone after each menstruation.
Putting demand on muscle by making the m work harder is effective for increasing muscle tissue(b), however, doing this repeatedly will cause overtraining(c)
Answer:
I think yes but I'm not sure.
Explanation:
Answer:
The best answer to the question: These cellular structures are utilized in strong involuntary muscle contractions and transmission of electrical impulses, would be: T-Tubules.
Explanation:
In both skeletal and cardiac muscle, not smooth muscle, because of the way that the muscle fibers are conformed into tight bundles of sarcomeres (skeletal muscle) and myocardiocytes (cardiac muscle), there is a need for a series of structures that will ensure that when there is a stimulus from the nervous systems, these stimulus will propagate to all the cells in the fibers, and not just one.
Aside from counting with a neuromuscular motor plate, which will receive the neurotransmitter from the nerve endings and produce the appropriate reactions, as well as propagate that reaction to all the cells that are being stimulated, muscle fibers also have a structure known as T-Tubules. T-Tubules are formations much like roadways of cell plasma membrane that connect not just one, but all the cells within a muscle fiber so that once a stimulus comes, all the cells will initiate the process of calcium release and action potential propagation. These T-Tubules will ensure that electrical impulses reach all muscle cells and that all cells react at the same time as needed.
<span>Answer: C. child #1 and #2 each had a 50% chance of getting HD; child #3 had a 0% chance.
Huntington’s disease is inherited in an autosomal dominant pattern which means you only need one allele from any parents to get the disease. That also means that there is no carrier, a healthy person must not carry any of the genes.
Parent of child 1 and 2 is a healthy male and female with HD. If the female has 2 HD gene, all of her children will get HD. But since she has a few normal children, then she must be heterozygous. Child of one heterozygous parent has 50% to get HD.
Since child 1 is normal, there is no chance for child 3 to get HD.</span>
