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Vertebrate Anatomy > Necturus section 4 and 6 > Flashcards

Necturus section 4 and 6 Flashcards

1
Q

how are mudpuppy teeth like fish teeth

A

small, conical, and homodont

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2
Q

what are the teeth sets on the upper jaw

A

premaxillary V, and vomerine with pterygoid set

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3
Q

what are the teeth sets on the lower jaw

A

dentary teeth with small sets of splenial teeth at the ends

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4
Q

the tongue is supported by what arch

A

hyoid arch supports the tongue

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5
Q

what is the function of gill rakers

A

short projections on either side of the gills that prevent large particles from passing over the gills

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6
Q

where does the glottis open into

A

pharynx to glottis to larynx

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7
Q

what does the glottis cover

A

esophageal opening

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8
Q

where does the esophagus extend from

A

esophageal opening in pharynx to the stomach

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9
Q

why is the epithelium lining the inside of the esophagus cilliated

A

for peristalsis

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10
Q

where is the stomach terminated

A

at the pylorus

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11
Q

where is the duodenum located

A

anterior part of the small intestine

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12
Q

what does the duodenum receive

A

openings of bile and pancreas ducts

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13
Q

what does the ileum resemble

A

loosely coiled tube

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14
Q

where does the ileum extend from

A

duodenum to rectum

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15
Q

where does the rectum end

A

ends with the cloaca

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16
Q

what is another name for the rectum

A

large intestine

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17
Q

what is the function of the liver

A

detoxifies, secretes some chemicals

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18
Q

what is the gall bladder

A

beginning of the bile duct

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19
Q

where is the pancreas located

A

along the length of the duodenum (whitish organ)

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20
Q

what organ of the digestive gland has no digestive function

A

spleen

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21
Q

what are the digestive glands

A

liver, gall bladder, pancreas, spleen

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22
Q

what are the digestive organs

A

esophagus, stomach, duodenum, ileum

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23
Q

what is another name for body cavity

A

coelom

24
Q

what does the transverse septum divide the body into

A

pericardial cavity and pleuroperitoneal cavity

25
Q

what does the pericardial cavity contain

A

heart

26
Q

what does the pleuroperitoneal cavity contain

A

everything except the heart

27
Q

what is the gastrospelnic ligament

A

between stomach and spleen

28
Q

what is the faciliform ligament

A

liver and ventral body wall

29
Q

what is the hepatogastric ligament

A

stomach and liver

30
Q

what is the hepatoduodenal ligament

A

liver and duodenum

31
Q

a male deposits a ____ that is then picked up by the female

A

spermatophore

32
Q

what is a spermatophore

A

clusters of sperm enveloped by a gelatinous substance

33
Q

what are the two theories on how the female picks up the spermatophore

A

direct physical contact, spermatophore in river and female uses muscular movement of cloaca (no copulation or amplexus)

34
Q

what is the spermatheca

A

in the cloaca, serves as a receptacle for spermatozoa

35
Q

when do neturus eggs happen

A

female receives sperm in fall, eggs laid in the following spring

36
Q

where are the eggs kept once laid

A

in a hollowed out space in sand under log or rock

37
Q

up to how many individual eggs can be deposited

A

150

38
Q

why does the female remain in the nest

A

to guard the eggs with brooding behavior

39
Q

why does adult necturus remain in nest after eggs hatched

A

why leave a shelter thats already established

40
Q

how long does it take for eggs to hatch

A

6-9 weeks

41
Q

how long does it take baby to mature to adult

A

up to 8 years

42
Q

whats the life span of mud puppy

A

25 years

43
Q

where are the testes located

A

on each side of the mid dorsal line above the kidneys

44
Q

what is the mesorchium

A

(male) messentry that attaches testes to the dorsal surface

45
Q

where are the efferent ductules located

A

along the mesorchium from the testes to the kidneys containing sperm

46
Q

what is the function of the slender parts of the kidneys in males

A

genital in function (tubules in this region modified for sperm passage)

47
Q

what are the mesonephric ducts in males

A

on lateral border of kidneys, convey sperm and urine

48
Q

what is the cloaca in males

A

terminal sinus of digestive, reproductive, and excretory systems, with papillae

49
Q

why is the bladder so important in males during breeding season

A

has small glands that open into the cloaca to hep remove the spermatophore

50
Q

where are the ovaries located on the female

A

cover anterior of the kidneys with masses of ova

51
Q

what is the female mesovarium

A

messentries that suspend ovaries from mid dorsal wall

52
Q

what are the oviducts

A

large coiled ducts lateral to each kidney and ovary, expands to form uterus

53
Q

what is the ostium

A

funnel shaped opening of the oviduct

54
Q

where do the uteri open to

A

open into the sides of the cloaca

55
Q

what are the mesotubarium

A

mesentry that attaches each oviduct to mid-dorsal body wall

56
Q

what does female cloaca lack that male cloaca has

A

papillae

Vertebrate Anatomy (10 decks)

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