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Comparative Anatomy > Lab Practical #1: Skeletal and Muscular Anatomy(Shark) > Flashcards

Lab Practical #1: Skeletal and Muscular Anatomy(Shark) Flashcards

1
Q

Pelvic fin extensor

A

extends the pelvic fin

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2
Q

Branchial arches

A

anterior five paired arches of the splanchnocranium

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3
Q

Trigeminofacial foramen

A

posterior opening of the eye orbit where facial and trigeminal nerves pass

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4
Q

Mandibular arch

A

anterior most visceral arch of the splanchnocranium

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5
Q

Cucallaris

A

elevates scapular process(dorsal to dorsal superficial constrictors)

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6
Q

Occipital condyles

A

Protrusions ventral and lateral to the foramen magnum

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7
Q

Pectoral fin extensor

A
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8
Q

Myosepta

A

sheets of connective trunk tissue

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9
Q

Ceratohyal cartilage

A

ventral paired elements of the hyoid arch

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10
Q

Scapular cartilage

A

dorsal, distal portion of the scapulocoracoid bar

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11
Q

eye orbit

A

houses the eyes

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12
Q

Palatoquadrate

A

upper jaw(part of mandibular arch)

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13
Q

Adductor mandibulae

A

elevates lower jaw(angle of jaw)

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14
Q

Propterygium

A

anterior basal pterygiophore

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15
Q

External nares

A

openings into the nasal capsule

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16
Q

Epibranchial cartilage

A

dorsolateral branchial cartilage

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17
Q

Hypaxial muscle

A

ventrolateral trunk muscle

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18
Q

Pelvic fin flexor

A

flexes the pelvic fin

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19
Q

preorbital process

A

anterior of eye orbit

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20
Q

Interhyoideus

A

compresses gill pouches(dorsal to intermandibularis)

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21
Q

Basal plate

A

posterior to the basitrabecular process

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22
Q

Dorsal superficial constrictors

A

compresses gill pouches(dorsal to external gill slits)

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23
Q

postorbital process

A

posterior of eye orbit

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24
Q

Ceratotrichia

A

distal most fin rays

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25
Q

Rostral fenestrae

A

openings on either side of the rostral keel

26
Q

Mesopterygium

A

central basal pterygiophore

27
Q

Radial pterygiophores

A

distal to the basal pterygiophores

28
Q

Ceratobranchial cartilage

A

ventral branchial cartilage

29
Q

Optic foramen

A

anterior opening of the eye orbit where the optic nerve passes

30
Q

supraorbital crest

A

central crest of eye orbit

31
Q

Pubic fin extensor

A

extends the pubic fin

32
Q

Clasper

A

male sex organ

33
Q

Basibranchial cartilage

A

central branchial cartilage

34
Q

Scapulocoracoid bar

A

U-shaped complex of the pectoral girdle

35
Q

Suprascapular cartilage

A

medial, curved ends of the U

36
Q

Spiracularis

A

elevates upper jaw(anterior to the spiracle)

37
Q

Pubic fin flexor

A

flexes the pubic fin

38
Q

Hyomandibular cartilage

A

paired epibranchial elements of the hyoid arch

39
Q

Hyoid arch

A

second visceral arch of the splanchnocranium

40
Q

Epaxial muscle

A

dorsolateral trunk muscle

41
Q

Pharyngobranchial cartilage

A

dorsomedial branchial cartilage

42
Q

Iliac process

A

anterior projections of the puboischiadic bar

43
Q

Spine

A

protrusion of the clasper

44
Q

What vertebrae does the shark have?

A

caudal and trunk

45
Q

Meckel’s cartilage

A

lower jaw(part of the mandibular arch)

46
Q

Rostrum

A

anterior projection overhanging the mouth

47
Q

Metapterygium

A

posterior basal pterygiophore

48
Q

Intermandibularis

A

elevates mouth floor/ reduces volume of mouth(angle of jaw)

49
Q

Myomeres

A

serially arranged trunk muscle blocks

50
Q

Foramen magnum

A

posterior opening of the chondrocranium through which the spinal cord passes

51
Q

Basitrabecular process

A

posterior to and between the eye orbits

52
Q

Puboischiadic bar

A

bar connecting the pelvic fins

53
Q

Basihyal cartilage

A

central element of the hyoid arch

54
Q

Ventral superficial constrictors

A

compresses gill pouches(between external gill slits)

55
Q

Levator palatoquadrati

A

elevates upper jaw(anterior to spiracularis)

56
Q

nasal capsule

A

lateral to the rostrum

57
Q

Rostral keel

A

center dividing line of the rostrum

58
Q

Coracoarcual

A

depresses lower jaw(posterior to intermandibularis)

59
Q

Horizontal septum

A

sheet of connective tissue separating lateral trunk musculature

60
Q

Coracoid bar

A

ventral portion of the scapulocoracoid bar

Comparative Anatomy (4 decks)

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