Answer:
The place theory of pitch perception suggests that different portions of the basilar membrane are sensitive to sounds of different frequencies.
Explanation:
More specifically, the base of the basilar membrane responds best to high frequencies and the tip of the basilar membrane responds best to low frequencies.
Answer:
a) True
Explanation:
The heart contains cardiac autorhythmic muscle cells, which are specialized cells that generate their own action potential without the need to receive it from nerve cells. These self-stimulated or self-excitable cells work together and function as the heart's natural pacemaker, which initiates an electric potential at a constant rate, and this potential travels through the heart triggering its contraction in an organized manner called the cardiac cycle.
These autorhythmic cells are found in the SA (sinoatrial) node in the right atrium of the heart, the AV (atrioventricular) node in between the atria and the ventricles, and in the fibers that connect these two nodes with each other and with the rest of the heart. All these structure working together is what's called the heart's electrical system.
Answer: Synovitis
Explanation: Synovitis. The synovium membrane is found in joints like your knee and shoulder. This thin membrane surrounds the inner lining of your joint and may have folds and fringes. Its main function is to create synovial fluid, which helps nourish and lubricate your joint.
B. Defense mechanisms
Step by step explanation
Flu-like Symptoms may occur during the acute viral infection stage of human immunodeficiency virus infection.
The initial stage of HIV infection is known as acute HIV infection, and it typically appears 2–4 weeks after HIV infection. Some people experience flu-like symptoms at this time, including fever, headache, and rash. HIV multiplies quickly during the acute stage of infection and spreads all over the body.
The immune system's infection-fighting CD4 cells (CD4 T lymphocytes) are attacked and destroyed by the virus. The risk of HIV transmission significantly rises during the acute HIV infection stage due to the extremely high HIV blood levels. If ART is initiated at this point, a person might have major health benefits.
Learn more about HIV infection here:
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