Illustration of the structure of the nose. The nose is the organ of smell, and uppermost part of the respiratory tract. It also acts as a resonator for the voice. Plates of cartilage form the exter- nal nose, opening at nostrils which are haired to prevent foreign objects entering. The inner nasal cavity contains projecting bones called conchae (three curling plates), covered with a mucous membrane. This membrane has blood vessels (here, coloured red and blue) which warm the air; and nerves (yellow, leading to the olfactory bulb of the brain) responsible for smell. Once smelled, the air is warmed, moistened, and filtered of dust by mucous, before it passes to the lungs.
Human body anatomy. Artwork showing the anatomy of a standing human body. Bones of the skeleton, muscles of the limbs, and major organs are seen. At top is the brain (white) in the skull & spinal cord passing into the neck. The thorax contains the heart with arteries (red) and veins (blue); around the heart are the lungs with bronchiole air tubes. Beneath the lungs are lobes of the liver in the abdomen. The pancreas (yellow), gall bladder (green) and two kidneys (pink) with ureters are seen. The small intestine is coiled, occupying the lower abdomen. Muscle blocks (red) in the limbs enable movement, & these are attached to bones of the limbs, pelvis and shoulder, by white tendons.
The Wound Man - A medieval anatomy illustration depicting all the injuries that a body might sustain.
Pathway of Sound
The auricle of the ear serves to “capture” sound waves, which travel down the auditory canal and hit the tympanic membrane (ear drum), causing it to vibrate and send vibrations through the small bones of the middle ear: the malleus, incus, and the stapes. The stapes connects to the oval window, which is the “window” (duh) between the middle and inner ear. The vibrations pass through the oval window and into the perilymph of the boney labyrinth of the inner ear, and eventually to the cochlea. The cochlea is filled with endolymph and houses the Organ of Corti. The vibrations carried through the perilymph causes the endolymph within the Organ of Corti to begin vibrating. The tectorial membrane is disturbed by these vibrations and “tickles” the microvilli of the hair cells between the basiliar and the tectorial membranes. The microvilli bend in response, triggering an actional potential and an impulse that is carried by the cochlear nerve to the temporal cortex where, alas, the impulse is interpreted as sound!
(via amazinganatomy)
When I was in Berlin last summer, I visited Gunter von Hagen’s körperwelten exibition, and saw all kinds of things like this. The most awesome arts exibition I’ve ever been to, I think. There was a blood vessel model like this one, of a whole bunny. I absolutely love these kinds of things.
(via skogtrold)
