. Where does the greatest increase in blood tiow occur dunng exercise 6. What is
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. Where does the greatest increase in blood tiow occur dunng exercise 6. What is the job of T-Cells? 7. What is the job of the spleen? 8.Know the three divisions of the pharynx in order starting with the most cranial section and end with the most caudal section. 9. Know what happens during a myogenic response in the kidneys. 10. What happens when Vasodilation of the efferent arteriole from the glomerulus. 11. What is Angistensin 1I? 12.What does Severe sweating do? 13. What is the detrusor muscles in the biadder regulated by? 14. What are the cells of the macula densa? 15.The brain-testicular axis what happens? 16. What is the LH in men? 17. What is testosterone? 18. Know the three continuous phases of the menstrual cycle? 19. Know when a spermatogenic cell is diploid. 20.Whwere does fertilization usually occur in? 2 0Explanation / Answer
5. During exercise, the greatest increase in the blood flow occurs in skeletal muscles. During exercise, the blood flow through skeletal muscle may increase up to 20-fold.
6. There are two types of T-cells in your body: Helper T-cells and Killer T-cells. KillerT-cells do the work of destroying the infected cells. The Helper T-cells coordinate the attack. Killer T-cells find and destroy infected cells that have been turned into virus-making factories.
7. The spleen is an organ in the upper far left part of the abdomen, to the left of the stomach. The spleen varies in size and shape between people, but it’s commonly fist-shaped, purple, and about 4 inches long. Because the spleen is protected by the rib cage, you can’t easily feel it unless it’s abnormally enlarged.
The spleen plays multiple supporting roles in the body. It acts as a filter for blood as part of the immune system. Old red blood cells are recycled in the spleen, and platelets and white blood cells are stored there. The spleen also helps fight certain kinds of bacteria that cause pneumonia and meningitis.
8. The pharynx makes up the part of the throat situated immediately behind the nasal cavity, behind the mouth and above the oesophagus and larynx. The human pharynx is conventionally divided into three divisions: the nasopharynx, the oropharynx and the laryngopharynx. Nasopharynx is the most cranial section and the laryngopharynx is the most caudal section
9. The myogenic mechanism is how arteries and arterioles react to an increase or decrease in blood pressure to keep the blood flow within the blood vessel constant.
This system is especially significant in the kidneys, where the glomerular filtration rate (the rate of blood filtration by the nephron) is particularly sensitive to changes in blood pressure. However, with the aid of the myogenic mechanism, the glomerular filtration rate remains very insensitive to changes in human blood pressure.
Myogenic mechanisms in the kidney are part of the autoregulation mechanism which maintains a constant renal blood flow at varying arterial pressure.
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