The structure that collects sound and funnels it into the auditory canal is called the pinna.
The ear is an exposed and sensitive organ in the human body. It is concerned with collecting, transmitting, and producing sounds. It also helps to maintain balance in the body. It has three main parts: the external ear, the middle ear, and the internal ear. Pinna is a part of the external ear.
Pinna is also called auricle. It is composed of cartilage folds that are covered by skin. The only part of the audible which is not covered by cartilage is the lobule. The curvature formed by cartilage is known as a helix. Another part of the pinna includes the meatus which is responsible for directing sounds collected by the helix.
Pinna acts as a link that transfers sound signals from the air to the auditory canal inside the ear. The tympanic membrane carries the sounds in an S-shaped path towards the middle ear (auditory canal).
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Answer:
(D) sensitive chemical tests and analytical instruments
Explanation:
Toxicology is defined as a science that aims to study the harmful effects arising from chemicals in the body of living beings.
Early toxicologists had archaic chemical tests devoid of any kind of technology, and did not have analytical instruments, or did not have adequate analytical instruments so that they could properly analyze and test the effects of the chemicals. This lack of sensitive equipment and testing has made it difficult to research toxicology in ancient times, but over time, these elements have adapted and met the criteria needed to make toxicology the science we know today.
Answer:
The second option. Increase
Answer:
· The principle of progression states that you should increase overload, which can be achieved by using FITT (frequency, intensity, time, and type) when your body adapts to its present routine. The specificity principle states that only targeted exercises will improve specific fitness goals.
