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01:30 -5 months agoAs sound waves entering the ear, they travel through the outer ear, the external auditory canal, and strike the eardrum causing it to vibrate.The central part of the eardrum is ... pennhealth.com more open pop
2 months agoSometimes you just have to grab fast food. Can you still eat a healthy meal if you do? Check out this helpful video for tips when eating out. Click the HD button to view in ... pennhealth.com more open pop
00:38 -5 months agoOvulation occurs though a sequence of hormonal responses. Located deep within the brain, the pituitary gland releases the hormones FSH and LH, which travel through the blood ... pennhealth.com more open pop
00:21 -5 months agoIn Parkinsons disease, dopamine production becomes irregular and inadequate and nerve cells cannot properly transmit messages. This results in the loss of muscle function. By ... pennhealth.com more open pop
00:36 -5 months agoHeart bypass surgery begins with an incision made in the chest, with the breastbone cut exposing the heart. Next, a portion of the saphenous vein is harvested from the inside ... pennhealth.com more open pop
00:33 -5 months agoDuring periods of stress, such as preparing to run in a race, the brain signals the adrenal glands to produce epinephrine or adrenaline. Epinephrine increases the rate in which ... pennhealth.com more open pop
00:24 -5 months agoAngioplasty is a procedure to open narrowed or blocked arteries caused by deposits of plaque. If the blockage is not major, the problem may be corrected by inflating the ... pennhealth.com more open pop
00:45 -5 months agoA stroke may occur if an embolism travels from another part of the body and lodges within an artery in the brain. When an internal arterial wall becomes damaged, various types ... pennhealth.com more open pop
00:19 -5 months agoIn a severe impact to the head, the brain moves and hits the skull causing injury. During a boxing match, the brain moves from side to side after the impact of a punch ... View ... pennhealth.com more open pop
00:16 -4 months agoBunions are usually caused by prolonged pressure put on the feet that compresses the big toe and pushes it toward the second toe. Over time, the condition may become painful as ... pennhealth.com more open pop
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