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Comparative Vertebrate Anatomy > Dogfish > Flashcards

Flashcards in Dogfish Deck (115):
1

projects anteriorly, protects pre cerebral cavity

rostrum

2

lateral to base of rostrum

nasal capsule

3

paired openings on surface of nasal capsules

nares

4

dorsal support for eyes

ant orbital process, supraorbital crest, postorbital process

5

supports eyeball, rooted to anterior trigeminal foramen

optic pedicle

6

largest opening in medial orbit wall

optic foramen

7

posteroventral eye support

basitrabecular process

8

several openings in orbital crest

superficial ophthalmic foramina

9

house inner ears

otic capsule

10

wide, flat, ventral part of otic capsules

basal plate

11

large medial opening in occipital region

foramen magnum

12

on either side of foramen magnum, articulate with first vertebra

occipital condyle

13

the most anterior arches, highly modified for jaw articulation

mandibular arch, hyoid arch

14

support interbranchial septa, lie between pharyngeal slits

branchial arches

15

upper jaw, articulates with chondrocranium, has two dorsal projections

palatoquadrate cartilage

16

anterior dorsal projection of palatoquadrate cartilage

orbital process

17

posterior dorsal projection of palatoquadrate cartilage

adductor mandibulae process

18

lower jaw

Meckel's cartilage

19

dorsal segment of hyoid arch

hyomandibular

20

articulates ventrally with hyomandibular

ceratohyal

21

articulates ventrally with ceratohyals

basihyal

22

the pharyngeal slits in dorsal to ventral order

pharyngobranchial, epibranchial, ceratobranchial

23

ventral completion of branchial arches

hypobranchial, basibranchial

24

inward projections of branchial arches

gill raker

25

thin, outward projections of branchial arches

gill ray

26

large, proximal base of fin (not caudal)

basal pterygiophore

27

series more distally from basal pterygiophore

radial pterygiophores

28

fibrous dermal rays

ceratotrichia

29

anchored anteriorly to basal pterygiophores

fin spine

30

ventral part of pectoral girdle

coracoid bar

31

dorsal portion (past fins) of pectoral girdle

scapular process

32

dorsal pectoral girdle

suprascapular cartilage

33

area of pectoral girdle that associates with fin

glenoid surface

34

single element of pelvic girdle

puboischiadic bar

35

area of articulation with pelvic fin

acetabular surface

36

projection of male pelvic fin associated with reproduction

clasper

37

hourglass shaped vertebral column, houses notochord

centrum

38

forms neural canal

neural arch

39

tips of neural plates that form a low ridge

neural spine

40

side projections coming off of centrum

basopophysis

41

projections of basopophysis

rib

42

plate of cartilage formed on ventral side of centrum

hemal arch

43

space for dorsal artery and ventral vein

hemal canal

44

blind-ended chamber opened through the nares

olfactory sac

45

lies on either side of the mouth

labial pocket

46

flap separating labial pocket and mouth

labial fold

47

large opening into pharynx posterior to each eye

spiracle

48

fold of tissue on anterior wall of spiracle

spiracular valve

49

reduced gill on posterior surface of spiracular valve

pseudobranch

50

separations between external pharyngeal slits

interbranchial septa

51

structures injected with red latex that make up the gills

gill lamellae

52

chamber into which the urinary, digestive, and reproductive tracts exit

cloaca

53

cone-like structure lying in male cloaca at the tip of which open the urinary and genital ducts

urogenital papilla

54

cone-like structure in female cloaca at the tip of which opens the urinary duct

urinary papilla

55

opening anterior to papilla, exit of digestive tract

anus

56

lie to either posterolateral side of the cloaca

abdominal pores

57

pale line just dorsal to mid lateral plane

lateral line

58

lie dorsally on head between spiracles, openings from balancing apparatus located in otic capsule of chondocranium

endolymphatic pores

59

numerous pores all over head, when squeezed secrete gel-like substance, used for electroreception

ampullae of lorenzini

60

dorsal musculature

Epaxial mm.

61

ventral musculature

hypaxial mm.

62

connective tissue sheet dividing hypaxial and epaxial mm.

horizontal skeletogenous septum

63

connective tissue dividing left and right myomeres midventrally

linea alba

64

lies on dorsal surface of pectoral fin

pectoral abductor m.

65

lies on ventral surface of pectoral fin

pectoral adductor m.

66

musculature of anterior wall of spiracular valve

spiracularis m.

67

muscle anterior to spiracularis

levator palaquadrati m.

68

muscle that lies posterior to spiracle extending from otic capsule to hyomandibular, raises hyomandibular during jaw closing

levator hyomandibulae m.

69

just posterior to angle of mouth, extends between upper and lower jaws, closes the mouth

adductor mandibulae m.

70

lie between adductor mandibular m. and first pharyngeal slit

dorsal and ventral hyoid constrictor mm.

71

muscles beween pharyngeal slits

dorsal and ventral superficial branchial constrictor mm.

72

triangular muscle, lies dorsal to constrictors

cucullaris m.

73

lies dorsal to cucullaris m.

epibranchial mm.

74

lies between halves of Meckel's cartilages, composed of left and right halves that fan outward

intermandibularis m.

75

extends between cartilages of ceratohyals, adheres tightly to intermandibularis

interhyoideus m.

76

septum between post and pretrematic gill lamellae, has curved fibres, lies lateral to superficial constrictor muscles

interbranchial m.

77

pre hyoid group of hypobranchial musculature, long, mid ventral, cylindrical muscle exposed on reflection of interhyoideus and intermandibularis

coracomandibular m.

78

deep to coracomandibular, post hyoid group of hypobranchials, elongated and paired

coracohyoid m.

79

continuous from posterior end of coracohyoid, lie medially between ventral superficial constrictors and anterior to hypaxial mm.

coracoarcual m.

80

a series of five muscles that fan out from the coracoid bar, coracoarcuals and was of pericardial cavity to cerato- and basibranchial cartilages

coracobranchial m.

81

floor of oral cavity

primary tongue

82

posterior body cavity

Pleuroperitoneal cavity

83

division between pericardial and pleuroperitoneal cavities, lies near pectoral girdle

transverse septum

84

epithelium that lines the body cavity

parietal paritoneum

85

epithelium covering organs

visceral peritoneum

86

occupies most of anterior pleuroperitoneal cavity, has right, left, and median lobes

liver

87

extends along the right margin of the medial lobe of the liver

gall bladder

88

dorsal to the liver, extending anteriorly

esophagus

89

finger-like projections of esophagus

papillae

90

main part of the stomach

body

91

smaller, narrower, posterior part of the stomach which marks separation between stomach and intestine

pylorus

92

portion of stomach just posterior to esophagus, bears longitudinal ridges

rugae

93

adheres to and almost completely hides the ventral surface of the duodenum

pancreas

94

the anterior segment of the intestine

duodenum

95

segment of intestine bearing spiral valve

valvular intestine

96

internal subdivision of valvular intestine, increasing its effective length

spiral valve

97

narrow segment of intestine extending posteriorly from valvular segment

colon

98

salt excreting gland close to the colon

digitiform gland

99

two narrow strips extending along mid sagittal plane of the dorsal wall of the cavity

kidneys

100

mesentery extending to the esophagus and stomach

mesogaster

101

ribbon-like strand extending from the liver toward the gut

lesser omentum

102

extends between the anteroventral surface of the liver and mid ventral body wall, supports oviduct

falciform ligament

103

lesser omentum as a single bundle next to the liver

bile duct

104

male gonads, lie dorsal to the liver

testis

105

anterior part of the kidney

epididymis

106

transports sperm posteriorly for eventual release from the body

archinephric duct

107

transports urine from posterior kidney, extends along medial margin of kidney

accessory urinary duct

108

straight and expanded region of archinephric duct

seminal vesicle

109

small, anteriorly blind ending pouch that lies on ventral surface of seminal vesicle

sperm sac

110

lies just deep into the skin on the ventral surface of the pelvic fin, sac-like

siphon

111

used for the passage of urine and sperm

urogenital papilla

112

female gonads, lie dorsal to the liver

ovary

113

lies on the ventral surface of each kidney

oviduct

114

anterior oviduct swelling dorsal to the ovary

nidamental gland

115

posterior enlargement of oviduct

uterus