ganglionic canal
21Iris dilator muscle — Iris, front view. (Muscle visible but not labeled.) …
22Iris sphincter muscle — Iris, front view. (Muscle visible but not labeled.) …
23Anesthesia — Loss of feeling or awareness. A local anesthetic causes loss of feeling in a part of the body. A general anesthetic puts the person to sleep. * * * 1. Loss of sensation resulting from pharmacologic depression of nerve function or from neurologic… …
24Optic chiasm — Brain: Optic chiasm Visual pathway with optic chiasm (X shape outlined, red) (1543 image from Andreas Vesalius Fabrica) Latin chiasma opticum Gray s …
25Parasympathetic nervous system — The parasympathetic nervous system (PSNS) is a division of the autonomic nervous system (ANS), along with the sympathetic nervous system (SNS) and enteric nervous system (ENS or bowels NS ). The ANS is a subdivision of the peripheral nervous… …
26Oculomotor nucleus — Brain: Oculomotor nucleus Section through superior colliculus showing path of oculomotor nerve …
27Optic tract — Brain: Optic tract The left optic nerve and the optic tracts. Latin tractus opticus Gray s subject #189 814 …
28Edinger-Westphal nucleus — Brain: Edinger Westphal nucleus Section through superior colliculus (unlabeled) showing path of oculomotor nerve. ( Edinger Westphal nucleus is not on diagram, but would be near oculomotor nuclei.) …
29Nerve fiber layer — Section of retina. (Stratum opticum labeled at right, second from the top.) …
30homopteran — /heuh mop teuhr euhn, hoh /, adj. 1. homopterous. n. 2. a homopterous insect. [1835 45; see HOMOPTEROUS, AN] * * * ▪ insect order Introduction any of more than 32,000 species of sucking insects, the members of which exhibit considerable… …
