The part of the ear that vibrates first when sound waves enter the ear is the

Biology

2 answers:

julia-pushkina [17]3 years ago

5 0

C. Ear drum

The part of the ear that vibrates first when sound waves enter the ear is the eardrum.

Mandarinka [93]3 years ago

4 0

The answer is eardrum (or tympanic membrane).

As sound waves enter the ear, they travel through the outer ear to the eardrum. By striking the eardrum, it begins to vibrate. Sound vibration is transmitted to the hammer (malleus), then to the incus and stapes. Stapes vibration moves the oval window and it is passed onto cochlea. The cochlea contains the receptor organ of hearing which translates the sound vibration into impulses which are then sent to the brain.

You might be interested in

Can anyone say me the answer please

pickupchik [31]

Answer:

The answer to this question is B

3 0

3 years ago

Within an infected wound bed, many cell types are involved in protecting the host and eliminating the "foreign invaders" to prom

Oxana [17]

Explanation:

All vital organs begin to lose some functionality as one ages during adulthood. Aging changes occur in all cells, tissues and organs of the body and affect the functioning of all body systems.

The living tissue is made up of cells. There are many different types of cells, but they all have the same basic structure. Tissues are layers of similar cells that fulfill a specific function. Different types of tissues group together to form organs.

There are four basic types of tissue:

The connective tissue supports the other tissues and joins them. This includes bone, blood and lymphatic tissue, in addition to the tissues that provide support and structure to the skin and internal organs.

The epithelial tissue provides coverage for the superficial and deeper layers of the body. The skin and lining of the ducts inside the body, such as the gastrointestinal system, are made of epithelial tissue.

Muscle tissue includes three types of tissue:

Striated muscles, such as those that move the skeleton (also called voluntary muscles)

Smooth muscles (also called involuntary muscles), such as the contents in the stomach and other internal organs

Myocardium, which makes up most of the wall of the heart (also an involuntary muscle)

Nervous tissue is composed of nerve cells (neurons) and is used to carry messages to and from different parts of the body. The brain, spinal cord and peripheral nerves are composed of nerve tissue.

7 0

3 years ago

The origin of congenital adrenal hyperplasia occurs when circulating cortisol levels

LuckyWell [14K]

The origin of congenital adrenal hyperplasia occurs when circulating cortisol levels are low.
Congenital adrenal hyperplasia (CAH) is an autosomal recessive disease which results from mutations of genes for enzymes involved in the biochemical steps of production of mineralocorticoids, glucocorticoids or sex steroids from cholesterol by the adrenal glands (steroidogenesis). <span>Low cortisol production results in rising levels of ACTH (adrenocorticotropic hormone) because cortisol usually inhibits ACTH production. This increased ACTH production induces overgrowth (hyperplasia) and overactivity of the steroid-producing cells of the adrenal cortex.</span>

5 0

3 years ago

What separates the parietal and visceral pericardium?

Nikitich [7]

The pericardial cavity separates the parietal and visceral pericardium

8 0

4 years ago

Is There are no risks to genetic engineering

Free_Kalibri [48]

Jgigiyutuugmyiyitititigititititititiititoy

7 0

4 years ago