http://humanbodyonline.us Your Source for Social News and Networking Mon, 12 Oct 2009 03:21:06 MST en http://humanbodyonline.us/human-body/human-body-and-mind-science-of-supertasters/ http://humanbodyonline.us/human-body/human-body-and-mind-science-of-supertasters/ Mon, 12 Oct 2009 03:21:06 MST http://humanbodyonline.us/human-body/human-body-and-mind-science-of-supertasters/ Brussels sprouts - for some people these miniature cabbages are the highlight of their Christmas dinner, others shudder at the mere thought of them. Scientists now know that not all people experience tastes in the same way. This is mainly down to the number of taste buds on your tongue.

The more taste buds you have, the more intensely you perceive tastes, especially bi

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-touch/ http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-touch/ Mon, 12 Oct 2009 03:19:43 MST http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-touch/
Function: To inform you about what's happening on the surface of your body
Receptors in your skin

Your skin and deeper tissues contain millions of sensory receptors. Without them, you wouldn't be able to sense and respond to your environment. They register what's happening on your body's su

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-taste/ http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-taste/ Mon, 12 Oct 2009 03:17:36 MST http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-taste/
Taste buds: Most of your taste buds are on your tongue

Basic tastes: Sweet, salty, sour and bitter
Protecting your body

Your sense of taste protects you from unsafe foods. If you ate poisonous or rotten foods, you would probably spit them out immediately, because they usually taste revolting. That way, you stop them from entering your sto

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-peripheral-nervous-system/ http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-peripheral-nervous-system/ Sat, 10 Oct 2009 02:17:13 MST http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-peripheral-nervous-system/
Actions: Your peripheral nerves transmit voluntary and involuntary actions

Sympathetic nervous system: Fight or flight

Parasympathetic nervous system: Rest and digest
Network outside your central nervous system

All the nerves and nerve cells outside your central nervous system make up your peripheral nervous syste

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-nerve-cells-and-nerves/ http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-nerve-cells-and-nerves/ Sat, 10 Oct 2009 02:05:43 MST http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-nerve-cells-and-nerves/
Neurons: Messenger cells in your nervous system

Nerve impulses: Electrical signals carrying messages

Neurotransmitters: Chemicals released by one neuron to excite a neighbouring one
Millions of messengers

Your nervous system contains millions of nerve cells, called neurons. Neurons are highly specialised to transmit

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-hearing/ http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-hearing/ Thu, 08 Oct 2009 01:07:41 MST http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-hearing/
Ear: Divided into your outer, middle and inner ear

Cochlea: Part of your inner ear, where your actual organ of hearing is located

Locating sounds: Sound reaches your two ears at different times, enabling you to locate its source
Ears, nerves and brain

Your ears are your organs of hearing. In order to hear, however, you also need your cochlear nerves to tr

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-balance/ http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-balance/ Thu, 08 Oct 2009 01:04:44 MST http://humanbodyonline.us/human-body/human-body-and-mind-nervous-system-layer-balance/

Other balance sensors: Your eyes and receptors in your muscles and tendons

Spinning head: Occurs when the balance sensors in your ear are disrupted

Rotation of your head
Your second organ of balance detects rotational movements of your head. It consists of three fluid-filled loops that are arranged at right angles to each other. Within each o

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-teeth/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-teeth/ Tue, 06 Oct 2009 01:50:07 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-teeth/ There are bacteria in your mouth that multiply when you eat sweet food. As these bacteria feed on food stuck on your teeth, they produce acid. This acid can dissolve enamel and eat through a tooth, right down to the nerve in its pulp cavity. A hole in a tooth like this provides a route for bacteria in your mouth to cause nasty infections in the root of a tooth. This can result in exc

9 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-spine/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-spine/ Tue, 06 Oct 2009 01:48:16 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-spine/ The joints between individual vertebrae aren't very flexible. But working together they give the spine a wide range of movement, allowing you to arch backwards, bend forwards and twist from side to side. During strenuous movement, strong ligaments and muscles around your vertebrae stabilise your spine and help to control movement.



Vertebrae
Your spine is made up of 33 irregul

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-skull/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-skull/ Tue, 06 Oct 2009 01:45:45 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-skull/ A human skull is almost full sized at birth. However the eight bones that make up the cranium are not yet fused together. This means that the skull can flex and deform during birth, making it easier to deliver a baby through the narrow birth canal. These individual plates of bone fuse together after about 24 months to form the adult skull.

The only bone in your s

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-joints/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-joints/ Sun, 04 Oct 2009 01:52:45 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-joints/
Fixed joints
Some of your joints, like those in your skull, are fixed and don't allow any movement. The bones in your skull are held together with fibrous connective tissue.

Ball and socket joints: Are the most mobile type of joint in your body

Where bones meet
Joints are the place where two bones meet.
All of your bones, except for one (t

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-ribcage/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-ribcage/ Sun, 04 Oct 2009 01:48:49 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-ribcage/ Muscles between your ribs lift your ribcage helping your lungs to expand when you inhale. Your ribcage moves down, squeezing air out of your lungs while you exhale.

3 types of rib: True, false and floating


True, false and floating ribs
Your ribcage is assembled from three types of bone - your sternum, 12 pairs of ribs and 12 thoracic vertebrae.

All of your ribs attach to yo

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-female-pelvis/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-female-pelvis/ Sun, 04 Oct 2009 01:46:23 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-female-pelvis/
Hip joint
Your legs are connected to your pelvis by your hip joint. The head of your femur (thigh bone) fits inside a deep socket in your pelvis called the acetabulum to make your hip joint, which is a 'ball and socket' joint.

Ball and socket joint: Connects your leg to your pelvis

Spinal connection
Your pelvis is joi

1 Vote(s) ]]> http://humanbodyonline.us/others/hotels-in-dublin/ http://humanbodyonline.us/others/hotels-in-dublin/ Sat, 03 Oct 2009 12:44:37 MST http://humanbodyonline.us/others/hotels-in-dublin/


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1 Vote(s) ]]> http://humanbodyonline.us/others/city-centre-accommodation/ http://humanbodyonline.us/others/city-centre-accommodation/ Wed, 30 Sep 2009 12:28:23 MST http://humanbodyonline.us/others/city-centre-accommodation/

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-leg/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-leg/ Tue, 29 Sep 2009 18:59:19 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-leg/
Kneecap: Is embedded in your quadriceps muscle
Long and strong

Your leg bones are the longest and strongest bones in your body. When you stand or walk, all the weight of your upper body rests on them. Each leg is made up of four bones. The three long bones are your femur, your tibia and your fibula. The fourth bone is your sma

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-hands-and-feet/ http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-hands-and-feet/ Tue, 29 Sep 2009 18:58:05 MST http://humanbodyonline.us/human-body/human-body-and-mind-skeleton-layer-hands-and-feet/
Knuckles: Are the ends of your metacarpals

Supporting your weight: Two bones in your feet carry most of your weight
Fingers and toes

More than half of the bones in your body are found in your hands and feet. There are 27 in each hand and 26 in each foot, and the way that they are arranged is remarkably similar.

If you bend your fingers,

1 Vote(s) ]]> http://humanbodyonline.us/human-body/human-body-and-mind-broken-bones/ http://humanbodyonline.us/human-body/human-body-and-mind-broken-bones/ Tue, 29 Sep 2009 18:57:00 MST http://humanbodyonline.us/human-body/human-body-and-mind-broken-bones/
If you haven't broken a bone yourself, you probably know someone who has. There are many different types of fracture, the most common of which is a simple fracture, when a bone breaks cleanly. If you put out your arms when you fall, you could end up with an impacted fracture, where the ends of two bones are forced into one another. A sharp sudden twist of a bone in a game of football

1 Vote(s) ]]> http://humanbodyonline.us/others/spanish-in-spain-2/ http://humanbodyonline.us/others/spanish-in-spain-2/ Tue, 29 Sep 2009 12:50:56 MST http://humanbodyonline.us/others/spanish-in-spain-2/


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1 Vote(s) ]]> http://humanbodyonline.us/human-body/body-and-mind-skeleton-layer-shape-and-structure/ http://humanbodyonline.us/human-body/body-and-mind-skeleton-layer-shape-and-structure/ Sun, 27 Sep 2009 19:47:24 MST http://humanbodyonline.us/human-body/body-and-mind-skeleton-layer-shape-and-structure/
Bone marrow: Red marrow makes blood cells. Yellow marrow stores fat

Two types of bone: Dense compact bone and lightweight spongy bone
Alive

Your bones are strong enough to support your weight, but light enough to allow movement. They protect your delicate internal organs and act as a storehouse for minerals, such as calcium. Despite appearing dry and

1 Vote(s) ]]>