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- Testicle (6183 bytes)
3: ...cool. This phenomenon is known as the cremasteric reflex. It also occurs in response to stress (the testic...
32: ...ar functions via gonadotrophic-like hormones may enlarge their size. - Ear (6659 bytes)
21: ... to the inner ear. This is called the [[acoustic reflex]]. - Pulmonary alveolus (8193 bytes)
20: ...stant stream of [[mucus]] out of the lungs, and [[reflex]] [[coughing]] and [[sneezing]] to dislodge mucus... - Eye (21834 bytes)
13: ...such an eye varies, however: some trilobites had only one, and some had thousands of lenses in one eye...
15: ...more. This enables snails to keep out of direct sunlight.
65: ...which allow humans and other animals to see by moonlight, or with very little available light (as in a...
79: ...plate striking the head will not damage the eye, unless it breaks the skull.
80: === Reflexes === - Heart (10132 bytes)
17: ...sure. As the right ventricle needs to pump blood only to the lungs, it requires less muscle.
28: ...[[Heart sound|beating sounds of the heart]], commonly referred to as the "lub-dub" sound.
33: ...etal muscle]], which requires either conscious or reflex nervous stimuli. The heart's rhythmic contraction... - Larynx (2361 bytes)
4: ...rynx during [[swallowing]]. The [[hyoid]] is the only floating bone in the body; it is not 'attached' ...
9: ...the [[lung]]s, there is also a strong [[cough]] [[reflex]] to protect the lungs. Sensation is transferred... - Nose (3059 bytes)
12: ...dfolded and removed from such external clues as sunlight-to within a few degrees of the [[North Pole]]...
19: *[[photic sneeze reflex]] - Mouth (2182 bytes)
20: ...moking]]. [[Infant]]s are born with a [[sucking]] reflex, by which they [[instinct]]ively know to suck for... - American football (39287 bytes)
40: ...e [[American Football League]] (AFL, 1960-1969). Only the AFL survives, as it merged with the NFL in 1...
46: ...y. These plays are often referred to as "downs." Unlimited substitutions can be made between plays.
52: ...y run a single play called a '''try''' (more commonly called an '''extra point''' or '''conversion att...
56: ...e booth makes all challenges and a team is given only 2 time outs during overtime. In college football...
64: ...nge if the first two were successful. A play can only be challenged before the next one has started. - Scrotum (2019 bytes)
3: ...s cold, and conversely, through the [[cremasteric reflex]], the gradual tightening and loosening of the [[... - Cerebellum (7954 bytes)
2: ...g]], such as adaptation of the [[vestibulo-ocular reflex]] and [[eyeblink conditioning]], demonstrate that...
8: ...nputs from much of the [[cerebral cortex]] but mainly from [[visual cortex]] and somatosensory cortex....
23: ...the granule cells of the cerebellar cortex), and only one climbing fiber (axon from inferior olivary n...
30: ...hey show `intention tremor' - a tremor occurring only during movement rather than at rest (as seen in ...
33: ...s of [[motor learning]] in the [[vestibulo-ocular reflex]] and [[eyeblink conditioning]] demonstrate that ... - Armadillo (3358 bytes)
16: ...erally lives and feeds near. Its diet consists mainly of [[insect]]s, grubs, and other [[invertebrate]...
18: ...assing over it. This is an example of an animal's reflex made useless, obsolete, and counterproductive by ...
20: ... in the study of [[leprosy]], since they are the only known non-human animal species that can contract...
22: ... genus ''dasypus'', not all armadillos as is commonly believed. - Digital photography (33923 bytes)
16: * Linear array (very rare, only limited to the highest-end)
35: *You only pay for the printing of successful pictures.
54: ...es, creation of work prints or FPO (For Position Only) images, and final images are much quicker.
59: ...Digital images from professional cameras can be 'enlarged' many times greater than the equivalent film...
63: ...ve promoted the adoption of digital [[Single-lens reflex camera]]s (SLRs) by [[photojournalism|photojourna... - Camera (4262 bytes)
9: ... glass or plastic micro-prism screen. [[Twin-lens reflex camera]]s use an objective lens and a focusing le... - Ossicles (2430 bytes)
3: ...se of the shape of the bones. They are also commonly referred to by the equivalent Latin terms: ''[[m...
9: ...r ear from excessively loud noise (see [[acoustic reflex]]). - Vestibulocochlear nerve (2871 bytes)
8: Some reflex fibers pass on to the motor nuclei of the eye mus... - Cornea (4779 bytes)
3: ... the cornea causes an involuntary [[reflex action|reflex]] to close the [[eyelid]]. Because transparency i... - Iris (anatomy) (11258 bytes)
10: ...[[melanin]]. Structurally, this huge molecule is only slightly different from its equivalent found in ...
13: ... all due to its melanin pigment, but this varies only from brown to black.
22: ...mended by serious medical [[physician|doctors]], unless the patient's retina needs extra protection, a...
38: ...the eye, and is closely related to the term ''red reflex'', used by ophthalmologists in describing appeara... - Optic nerve (5184 bytes)
17: ...ell as an abnormal [[Pupil_constriction|pupillary reflex]], which is diagnostically important. The type of...
18: ...ect vision in the visual field of the same side only. - Helium (36603 bytes)
104: ... are the lowest among the elements and it exists only as a [[gas]] except in extreme conditions. Extre...
112: ...aning it heats up when allowed to freely expand. Only below its [[Joule-Thomson inversion temperature]...
114: ... [[band system]]s, and HgHe, which is apparently only held together by polarization forces <!-- ref: '...
117: ...T] it is 50 times more compressible than water. Unlike any other element, helium will fail to solidif...
120: ... the lambda point, when it stops boiling and suddenly expands. The rate of expansion decreases below t...
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