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Anatomy > Chondrychthians > Flashcards

Chondrychthians Flashcards

1
Q

What three arches make up the splanchnocranium of the shark?

A
  1. Mandibular arch
  2. Hyoid arch
  3. Brancial arch
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2
Q

What parts make up the mandibular arch of the shark?

A

Palatoquadrate and Meckel’s cartilage

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3
Q

What parts make up the hyoid arch of the shark?

A

Hyomandibular cartilage
Ceratohyal cartilage
Basihyal cartilage

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4
Q

What parts make up the branchial arches of the shark?

A

Pharyngobranchial cartilage
Epibranchial cartilage
Ceratobranchial cartilage
Hypobranchial cartilage
Basibranchial cartilage

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5
Q

What is the function of the gill rakers on sharks?

A

To sieve

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6
Q

What is the function of the gill rays in sharks?

A

Scaffolding for gill tissue

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7
Q

What is the function of the rostrum in a shark?

A

Snout

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8
Q

What is the function of the nasal capsule in sharks?

A

Houses olfactory tissue

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9
Q

What is the function of the otic capsule in sharks?

A

Houses semicircular canals

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10
Q

What is the function of the occipital condyles in sharks?

A

Articulates with vertebral column

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11
Q

What is the function of the foramen magnum in sharks?

A

Exit for spinal cord

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12
Q

What is the function of the epiphyseal foramen in sharks?

A

Opening for pineal gland

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13
Q

What is the function of the endolymphatic fossa in sharks?

A

Houses ducts for inner ear

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14
Q

What kind of jaw suspension do sharks have?

A

Hyostylic

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15
Q

What structures make up the jaw articulation of sharks?

A

Palatoquadrate
Meckel’s cartilage
Hyomandibular cartilage

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16
Q

What is the incus in sharks?

A

Palatoquadrate

17
Q

What is the malleus in sharks?

A

Meckel’s cartilage

18
Q

What is the stapes in sharks?

A

Hyomandibular cartilage

Anatomy (3 decks)

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