Term
LAMPREY
Pleuroperitoneal Cavity |
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Definition
| The body cavity containing both the lungs and the abdominal viscera |
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Term
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Definition
Either testes or ovaries
Ovaries contain grainy eggs |
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Term
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Definition
Filters blood of toxins
Greenish organ
Located at anterior end of the pleuroperitoneal cavity
Gallbladder and bile duct are absent in adults |
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Term
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Definition
Absorbs nutrients from food
Dorsal to the liver
No stomach |
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Term
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Definition
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Term
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Definition
| Pathway from mouth to intestine |
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Term
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Definition
Termed spiral valve
Folds that increase surface area |
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Term
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Definition
Long, thin, ribbon-like
Lies on either side of the middorsal line |
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Term
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Definition
| Opening in oral cavity dorsal to pharynx/respiratory tube |
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Term
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Definition
Opening in oral cavity ventral to esophagus
Opens into respiratory tube |
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Term
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Definition
| Can close anterior opening of respiration valve into the oral cavity |
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Term
LAMPREY
Internal Gill Slits |
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Definition
| Opens into external gill openins |
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Term
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Definition
| Small hair-like extensions on gills |
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Term
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Definition
| Supported by large lingual cartilage |
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Term
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Definition
| Responsible for working the tongue |
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Definition
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Term
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Definition
Dorsal
Tripartite (3 lobed)
Opens into spinal cord |
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Term
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Definition
Ventral to posterior half of brain/spinal cord
Extends posteriorly
Provides support |
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Term
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Definition
Anterior to brain
Has numerous fold to increase surface area |
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Term
LAMPREY
Hypophyseal Pouch
(3) |
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Definition
Pouch ventral to brain
Anterior to notochord
Past olfactory sac |
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Term
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Definition
| Specialized for light detection |
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Term
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Definition
Lies in pericardial cavity
Posterior to the respiratory tube
Separated from pleuroperitoneal cavity by transverse septum
Three chambers: Sinus venosus, atrium, ventricle |
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Term
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Definition
| Blood flows through ventral aorta from the ventricle to capillaries in pharyngeal septa |
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Term
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Definition
| Blood is recollected by efferent branchial arteries and channel it to dorsal aorta |
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Term
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Definition
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Term
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Definition
Absent in lampreys
Gametes are shed into coelom
Gamete exit by genital pores to enter the urogenital sinus within the urogenital papilla |
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Term
LAMPREY
Archinephric Duct
(2) |
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Definition
Drains the kidney
Enters the urogenital sinus |
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Term
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Definition
| Short anterodorsal extension inside the oral cavity |
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