Answer:
Deoxygenated blood enters the right atrium from the superior and inferior vena cava > The blood flows through the tricuspid valve into the right ventricle >From the right ventricle, the blood flows through the pulmonary valve into the pulmonary artery > The right and left pulmonary arteries carry deoxygenated blood to the right and left lungs for gas exchange > The blood releases carbon dioxide as waste and picks up a fresh supply of oxygen > The oxygenated blood flows through the pulmonary veins from the lungs into the left atrium > From the left atrium, the blood flows through the bicuspid, or mitral valve into the left ventricle > Left ventricular contraction forces blood through the aortic valve into the aorta for distribution to the systemic circulation
Explanation:
Answer:
The correct answer to the question: The pineal body secretes which hormone that maintains the body´s internal clock, the 24-hour wake-sleep cycle, and regulates the onset and duration of sleep?, would be, C: Melatonin.
Explanation:
The process of sleep and wakefulness, also called the circadian cycle, its a pretty complex system that is controlled by several parts of the brain, but most importantly, structures of the diencephalon (vital is the hypothalamus), the pineal gland, and the stem of the brain. All these structures, and some others, respond to changes both in light perception by the eyes and other senses, heat, and homeostatic balances. These factor play a vital role in telling the human body that it is time for sleep, or to awaken. The pineal gland, as part of this melody, is essential, as it secretes the hormone, melatonin, in response to light changes. Melatonin will balance out the process of sleep, when it is secreted in high quantities by the pineal gland, and wakefulness, when it is no longer secreted in response to the presence of light. This is what is called the circadian cycle.
Neisseria gonorrhoeae is treated with a combination of drugs because the organism is resistant to many, including penicillin and fluoroquinolones.
Gonorrhoeae is a contender to produce an incurable illness due to the development or acquisition of resistance mechanisms for sulfonamides, penicillins, tetracyclines, ciprofloxacin, and more recently azithromycin and ceftriaxone during the past 80 years.
The Neisseria gonorrhoeae bacteria is the source of the sexually transmitted illness (STD) known as gonorrhea. The urethra in both men and women as well as the cervix, uterus, and fallopian tubes in women are all affected by N. gonorrhoeae infection.
Penicillin is the first drug that has been shown to be effective against syphilis and gonorrhea. However, compared to the dosage required to treat syphilis, which is often approximately 1,000,000 units, the drug used to treat gonorrhea is frequently administered in doses of just around 100,000 units.
Learn more about Neisseria gonorrhoeae at
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Answer and explanation :
there are many problem due to lack of pneumotaxic and stetch receptor neurons on ventilation
DUE TO LACK OF PNEUMOTAXIC CENTER :
- pneumotaxic center is present in the nucleus which is used to transmit impulse to the inspiratory area which is not possible due to lack of pneumotaxic center
- it controls the duration of filling of lungs
- it also control the medullary respiratory system which is not possible due to lack of this
DUE TO LACK OF STRETCH RECEPTOR :
- The hearing breuer inflation reflex is generated by stretch receptor neuron which is not generated due to lack of stretch receptor
- when stretched these receptors send the inhibitory impulses through the vegus nerve to the DMG neuron which is not possible due to lack of this
