SHARK: AXIAL SKELETON: SKULL: SPLANCHNOCRANIUM Flashcards
It is the visceral skeleton of the skull
splanchnocranium
first, most anterior and the largest of the visceral arches. It is modified into two teeth bearing parts
mandibular arch
two teeth-bearing parts consist
TWO PALATOPTERYGOQUADRATE CARTILAGES
TWO MECKEL’S CARTILAGES
the dorsal part of the mandibular arch, which have fused in the anterior midline and have formed an arch that constitutes the upper jaw
PALATOPTERYGOQUADRATE
Each of the palatopterygoquadrate cartilages bears an _____________, which projects up into the orbit
ORBITAL PROCESS
each of the palatopterygoquadrate cartilages also bears a __________________, which projects up from the lateral end of this cartilage
QUADRATE PROCESS
ventral part of the mandibular arch consists of the two ________________ fused at the midline, which constitute the lower jaw
MECKEL’S CARTILAGE
arch spine-like ______________________ project forward on each side at regions where the two jaws meet
LABIAL CARTILAGES
second visceral arch consists of five cartilages.
HYOID ARCH
a pair of short __________ articulate with the posterior end of the chondrocranium.
HYOMANDIBULAR CARTILAGES
J-shaped cartilage whose long arms lie beneath the chondrocranium
CERATOHYAL CARTILAGES
the ceratohyal cartilage are connected across the midline to a short cartilaginous bar
BASIHYAL CARTILAGE
Each of these gill or branchial arches consists dorsally of pharyngobranchial cartilages that articulate laterally with short epibranchial cartilages
VISCERAL ARCHES THREE TO SEVEN
general pattern for these arches is for epibranchial cartilages to connect with the following series of ventral cartilages
CERATOBRANCHIALS, HYPOBRANCHIALS, BASIBRANCHIAL
the third arch has
a basibranchial
