CVA- Lamprey
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32 terms
Terms | Definitions |
|---|---|
 Buccal funnel | consumes blood, tissue fluids and tissue debris |
| Buccal papillae | sensory function, reinforce suction |
| Toothlike organs | create hole in host species |
| Pineal organ | may detect light and may affect the distribution of skin pigments and reproductive behavior |
| Lateral line system | pores lead to canals where receptor cells are capable of detecting water currents |
| Gill slits | during feeding, flow of respiratory water is pumped in and out of this which is different than the unidirectional flow of fish |
| Cloacal aperture | space into which urine, fecal material and gametes are released |
| Urogenital papilla | Urine and gametes are released through here in mature specimens |
| Annular cartilage | supports the oral sucker |
| Lingual cartilage | important during movement of the rasping tongue in early feeding stages |
| Notochord | unconstricted support of main longitudinal skeleton |
| Branchial basket | surrounds gils and heart |
| Pericardial cartilage | posterior portion of basket, encompasses heart |
| Myomeres | muscle fibers folded into a complex W-shaped configuration, facilitate movement |
| Myosepta | sheets of connective tissue that separate myomeres |
| Circular muscle | associated with the sucker employed during release of the host |
| Transverse septum | divides pericardial cavity from pleuroperitoneal cavity |
| Pleuroperitoneal cavity | helps with respiration, digestion & other system |
| Oral glands | secrete anti-coagulating agent which promotes a seeping wound |
| Esophagus | leads to a straight intestine |
| Intestine | spiral fold, increases surface area increasing digestion |
| Liver | produces chemicals similar to those secreted by the pancreas |
| Respiratory tube | brings water into the internal gills |
| Gill filaments | within the pouches, gaseous exchange occurs |
| Kidneys (NO T) | helps filter out urine |
| Brain | small size, ten pairs of cranial nerves |
| Spinal cord (YES S) | continuation of the brain, dorsal and ventral roots are not united |
| Olfactory sac | enables smell |
| Hypophyseal sac (NO S) | facilitates olfaction by moving water into and out of nostril |
| Oral hood (larva) | sensory organs and large particle strainers |
| Pharynx (larva) | capable of expansion and contraction causing volume changes and drawing a stream of water into it (muscular pump) |
| Subpharyngeal gland (larva) | Fixes iodine, produces chemical similar to thyroid hormones, production of mucus to capture particles |
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