Human Anatomy

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Anatomy is the study of form, while physiology is the study of function, according to Wikipedia. Anatomy is the scientific study of the structure of organisms including their systems, organs and tissues. It details the appearance and position of various parts, their material compositions and their locations and relationships with other parts. Physiology deals respectively with the functions of those anatomical parts and the chemical processes involved.

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  • When does your head stop growing?

    Q: When does your head stop growing?

    A: The human head never stops growing and changing, according to findings reported by Duke Magazine. While most bones stop growing following puberty, CT scans conducted on 100 men and women demonstrated that the bones of the skull continue to grow and change throughout a person's lifetime.
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  • How does skin regulate body temperature?

    Q: How does skin regulate body temperature?

    A: Sweat glands and fatty layers in the skin help to regulate body temperature in mammals. When the outside temperature is high, sweat glands release bodily fluids combined with salt to keep the body temperature from getting too high. When the outside temperature is low, fatty layers on the skin act as insulation, trapping heat and keeping it from leaving the body.
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  • What is the dirtiest place in the human body?

    Q: What is the dirtiest place in the human body?

    A: The mouth is considered the dirtiest place in the human body. It carries the largest amount of bacteria and germs.
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  • Does listening to music affect your reaction time?

    Q: Does listening to music affect your reaction time?

    A: Listening to loud music has a small effect on reaction time. Music at low and moderate levels does not affect reaction time in a significant way.
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  • Where is the navel located on the human body?

    Q: Where is the navel located on the human body?

    A: The navel is located on the front of the body, roughly half way up the abdomen. There is a great variety in navel size and shape among humans.
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  • How many taste buds are on the human tongue?

    Q: How many taste buds are on the human tongue?

    A: According to KidsHealth, the average human tongue has about 10,000 taste buds. In many people, there is a regular turnover every two weeks and all the taste buds are replaced.
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  • What is the function of the uvula?

    Q: What is the function of the uvula?

    A: Although there is some uncertainly regarding the function of the uvula, experts believe that this small flap-like structure in the back of the throat plays important roles in speech and swallowing. The uvula contains glands that secrete a large amount of saliva, which aids in digestion, keeps the mouth moist and prevents airborne pathogens from entering the respiratory canal.
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  • Why are females more flexible than males?

    Q: Why are females more flexible than males?

    A: Women’s bodies are more flexible than men's to allow women to carry and eventually hold a baby, according to Harvard University. This is caused in part by the hormone estrogen, which promotes the lengthening of muscles, according to Krav Maga for Fitness.
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  • Why do arteries have thicker walls than veins?

    Q: Why do arteries have thicker walls than veins?

    A: Arteries have thicker walls than veins because they must be able to withstand the tremendous pressure from a beating heart. Veins have thinner walls because they need more room to hold blood.
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  • How can I reduce upper arm size?

    Q: How can I reduce upper arm size?

    A: To reduce the size of upper arms, train the upper arms with both isolation and compound exercises using either body weight exercises or traditional training exercises. Eliminate upper arm flab by hitting the punching bag as it helps burn fat and tone muscles in that area. To get the best results, it is important to tighten daily diets and achieve overall weight loss.
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  • What does the skeletal system consist of?

    Q: What does the skeletal system consist of?

    A: The skeletal system consists of 206 bones and their associated tissues, including the cartilage, ligaments, tendons and joints. Its functions are supporting the body and protecting the vital organs. It also serves as anchorage for the action of muscles.
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  • What are the similarities between a fetal pig's anatomy and a human's anatomy?

    Q: What are the similarities between a fetal pig's anatomy and a human's anatomy?

    A: According to Goshen College's Fetal Pig Dissection Guide, a fetal pig's anatomy is similar to the anatomy of a human because both animals are mammals, and both contain the same vital organs. Pigs have the same muscles as humans in almost every case; however, since pigs are quadrupedal and humans are bipedal, there are small variations between size and location of some muscles.
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  • What is the function of Meissner's corpuscles?

    Q: What is the function of Meissner's corpuscles?

    A: Meissner's corpuscles, also known as tactile corpuscles, are nerve endings that are responsible for detecting a light touch to the skin. The are considered a type of mechanoreceptor since they are responsive to physical pressure. Meissner's corpuscles have the lowest sensitivity threshold of any type of mechanoreceptor; they can sense vibrations with frequencies as low as 10 Hertz.
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  • What is the average height for an adult?

    Q: What is the average height for an adult?

    A: The Centers for Disease Control and Prevention identifies the average height for American women as about 5 feet, 4 inches tall. The average man is just over 5 feet, 9 inches tall.
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  • What part of the brain does music affect?

    Q: What part of the brain does music affect?

    A: Initially, a person's temporal and frontal lobes begin processing the sounds of music when a song begins to play, with brain cells deciphering melody, rhythm and pitch. Many researchers believe most activity concerning music happens in the brain's right hemisphere, while other researchers say it happens on both sides.
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  • How many pulse points are in the human body?

    Q: How many pulse points are in the human body?

    A: There are eight main pulse points in the human body. These pulse points are in the wrists, at the sides of the lower jaw, at the temples, on the side of the neck, on the inner biceps, behind the knee, in the groin and on the upper part of the foot. All arteries have a pulse, which can be felt where they run close to the skin.
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  • Why do people snort when they laugh?

    Q: Why do people snort when they laugh?

    A: People snort when they laugh because they are also exhaling through the nose. The snorting sound, similar to snoring, is caused by an obstruction in the airway as the breath is exhaled.
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  • What is the approximate range of human hearing?

    Q: What is the approximate range of human hearing?

    A: The approximate range for human hearing is between 20 to 20,000 Hertz (Hz). This number is greatly dependent on the distance of the noise from the person and the type of noise that is being exhibited.
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  • What is the function of joints?

    Q: What is the function of joints?

    A: A joint's function is to bear weight, perform work and exhibit a particular range of motion during movement where two or more bones come together for the purpose of movement. A joint moves when the muscles crossing it contract.
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  • Why do optical illusions work?

    Q: Why do optical illusions work?

    A: Optical illusions work because humans have binocular vision, which allows people to see different objects with each eye and sometimes the images do not merge properly. The brain must also interpret the signals correctly. Persistence of vision can also make optical illusions work.
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  • What causes severe hunger pains?

    Q: What causes severe hunger pains?

    A: Better Medicine states that hunger is the result of a complicated group of interactions controlled by the body's endocrine, digestive and neurological systems. These systems send chemicals to the brain to indicate both hunger and fullness. When a person consistently experiences excessive hunger, it can be a sign of illness.
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