Physiology of Exercise

11. An elite powerlifter would most likely have a higher percentage of which fiber type?

12. Explain blood glucose homeostasis during exercise. Talk about the hormone involved and the actions they take to control our blood glucose.

13. How do athlete's differ from the general population in hormone and receptor number.

14. What are some of the common fare markers (fats & triglycerides) that are seen in a blood test and what do they mean and how can someone change those levels.

Pick three digestive tract illnesses and discuss what causes these issues? (Reproductive system chapter 19 fundamental of anatomy and physiology 4th edition book)

Atrioventricular valves close at the beginning and the semilunar valves open at the end of which stage of the cardiac cycle?

Which of the following will induce the strongest conscious perception of suffocation?

If an individual were confined in a small space, and re-inspiring expired gasses, which of the following would be expected?

Which of the following would result if one were to breathe an atmosphere with normal oxygen levels, but excessive carbon dioxide levels?

In which of the following situations would blood pH be low?

Which of the following is NOT used by the cerebellum to maintain balance?

How many forms of sensory feedback is the cerebellum of a blind individual with a vestibular deficit receiving?

An intention tremor and ataxia are consistent with which of the following?

A positive Rhomberg sign along with an inability to judge the position of a limb or digit suggests which of the following?

A resting tremor is consistent with which of the following?

Which of the following hormones inhibits prolactin secretion?

If a pituitary adenoma secretes excessive amounts of prolactin, levels of which of the following hormones will be elevated?

Which of the following will occur if the thyroid is unable to secrete thyroid hormones?

Which of the following hormones does not exert an inhibitory influence on the secretion of another hormone as part of a negative feedback mechanism?

Which of the following would be the best choice for treating a patient with a hyperprolactinemia that resulted from a non-functioning thyroid?

Which of the following would be the best choice for treating a patient with a hypothyroidism caused by a PRL secreting adenoma?

The semilunar valves are open throughout which of the following stages?

The semilunar valves open at the end of which of the following stages?

All four valves are shut during which of the following stages?

All four chambers are relaxed during which of the following?

I have a presentation about how to build a muscle during the quarantine, that's should include fast- and slow-twitch muscles topic

I need detailed reliable information about it with their source.

Patients with uncontrolled diabetes may enter a state called diabetic ketoacidosis, a form of metabolic acidosis in which low blood pH is caused by the excessive accumulation of acidic ketone bodies in the blood, due to excessive catabolism of stored fats (NOTE: while not relevant to this question, it might be interesting and a good review to make sure you understand why impaired insulin signaling would cause this to occur!). If this acidosis becomes severe and life-threatening, patients will eventually exhibit Kussmaul breathing: very deep, rapid, gasping breaths. which of the following scenarios explains why that is the case?

A Low blood pH increases the firing rate of central and peripheral chemoreceptors which increases the bursting rate of brainstem respiratory rhythmicity center neurons which increases the strength and rate of diaphragm contractions.

B Low blood pH increases the bursting rate of brainstem respiratory rhythmicity center neurons which increases the firing rate of central and peripheral chemoreceptors which increases the strength and rate of diaphragm contractions.

C Low blood pH decreases the bursting rate of brainstem respiratory rhythmicity center neurons which increases the firing rate of central and peripheral chemoreceptors which decreases the strength and rate of diaphragm contractions.

D Low blood pH increases the firing rate of central and peripheral chemoreceptors which decreases the bursting rate of brainstem respiratory rhythmicity center neurons which increases the strength and rate of diaphragm contractions. E Low blood pH decreases the firing rate of central and peripheral chemoreceptors which increases the bursting rate of brainstem respiratory rhythmicity center neurons which decreases the strength and rate of diaphragm contractions.

A severe bout of vomiting eventually lowers blood plasma ​[H^+] (remember that the stomach contents are highly acidic because protons are pumped out of the stomach epithelium into the stomach lumen). After this occurs, what will happen to your alveolar ventilation rate?

A It will decrease.

B It will increase.

C It will stay the same.

Write an Explanation after each answer

Chen Yau, a 3-year-old Asian-American man, was admitted with symptoms of a depressed immune system, including oral and groin candidiasis (thrush) and a herpesvirus infection. This is his fourth admission in less than 2 years. Mr. Yau has engaged in anal and oral homosexual intercourse since 20 years of age. At 30 years old, he tested positive for HIV. Chen has had four inpatient and three outpatient admissions between 30 and 32 years of age. His previous admissions were for Pneumocystis carinii pneumonia, anemia, gastrointestinal problems, and Kaposi sarcoma of the skin. Mr. Yau takes several medications to control his symptoms, including zidovudine (Azidothymidine (AZT)). Mr. Yau’s most recent admission was preceded with symptoms of diarrhea, loss of appetite, a 10-pound weight loss over a 2-week period, a nonproductive cough, some shortness of breath, night sweats, fatigue, and a perianal lesion. On admission, physical examination reveals painful enlargement of multiple lymph nodes, whites exudate, and inflammation of the mouth and back of the throat, which is consistent with candidiasis, and purplish brown palpable lesions on his arms, legs, and trunk, which are consistent with Kaposi sarcoma. A comprehensive baseline mental status examination reveals several subtle changes in personality and some mild confusion. Mr. Yau demonstrates limits in his visual field, and an ophthalmoscopic examination of the eye shows evidence of inflammation and hemorrhage of the retina that is consistent with cytomegalovirus. Laboratory studies reveal a low white cell count with a few lymphocytes, a reduced ratio of T4 helper cells to T8 suppressor cells, a positive stool for the Cryptosporidium parasite, and an x-ray with diffuse infiltrates compatible with Pneumocystis carinii pneumonia. During this most recent admission, Mr. Yau became extremely confused and also became unable to fully control the muscles of his feet and legs. His condition continued to deteriorate until his death in the hospital a few weeks after his admission.

1. Acquired immune deficiency syndrome (AIDS) manifests as reduced resistance to opportunistic infections and malignancies because of: A. An acquired deficiency of isoimmunity B. An exaggerated immune response to counteract a T-cell deficiency C. Impaired functioning of one of the immune inflammatory responses D. Deficiency of antigen (HIV) recognition.

2. The T4 helper cell to T8 suppressor cell ratio is normally about 2:1. This ratio in Mr. Yau was severely reduced because: A. Bone marrow depression reduces hemoglobin and hematocrit levels. B. HIV infects and kills the host T4 cells, decreasing their numbers. C. The T8 suppressor cells are stimulated by HIV and their numbers increase. D. y-Interferon is reduced, thereby reducing cytotoxic T8 suppressor cell activity.

3. Pneumocystis carinii, a protozoan that is usually not pathogenic, caused severe respiratory problems for Mr. Yau because of his: A. T-cell function impairment B. Lack of knowledge about his disease C. Recent exposure to human immunodeficiency virus D. Immunosuppression from the AZT

4. Mr. Yau’s confusion and distal peripheral neuropathy are not supported with any serological findings for neurological or infectious disease. His peripheral neuropathy was most likely caused by: A. Primary or secondary central nervous system lymphoma B. Toxoplasma, a protozoan infection of the central nervous system C. Disturbance in normal brain patterns from drug therapy D. Presence of HIV in peripheral nerves and the central nervous system.

How does food in the duodenum inhibit motility and secretions in the stomach? IM LOOKING FOR SOMEWHAT AN DETAIL OR NEAR TO DETAIL NEAR ,...A GOOD EXPLANATION FOR THIS QUESTION , i need to understand , thank u

how kidney nephron works?

1) One question discussed there: can we just give vaccines that show promise in animal studies/preclinical data given this urgent need?
2) there is the interesting scientific data on the population response to the virus (children vs. adult vs. elderly) - how would a clinical trial be affected if enrolling adults vs. elderly? and how the generalizability of the findings be applicable?

List and describe the ecents of hemostais in order