Sim-chōng

Jîn-lūi ê sim-chōng kap hì, lâi-goân: Gray ê kái-phò-ha̍k.

Jîn-lūi sim-chōng ê hia̍h-á-thâu-koan. Pe̍h-sek chìⁿ-thâu piáu-sī hoeh-liû ê hong-hiòng

Sim-chōng sī chek-chui tōng-bu̍t 1 chióng kin-bah cho͘-sêng ê khì-koan, lāi-té-bīn khang-khang, hū-chek kā hoeh thaù-koè hoeh-kńg (blood vessel) sàng kaù kui sin-khu. Sim-chōng tiāⁿ-tio̍h chin ū kui-lu̍t leh siu-siok. Sim-chōng ê sim-kin (cardiac muscle) sī 1 khoán put-sûi-ì-kin (involuntary muscle), choan-tô͘ ēng tiàm sim-chōng, chin ióng.

Khoân-hêng tōng-bu̍t (annelid), nńg-thé tōng-bu̍t (mollusk), kap chat-kha tōng-bu̍t (arthropod) mā ū kong-lêng chhan-chhiūⁿ ê kiat-kò͘.