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Practice Exam Unit 1
Practice Exam Unit 1
22
Anatomy
Undergraduate 3
02/13/2013

Additional Anatomy Flashcards

 


 

Cards

Term

Acorn worms are...

 

Definition
Hemichordates
Term

Which is diploblastic?

  • Ctenphore (comb jelly)
  • Acorn worm
  • Flatworm
  • Starfish
  • Arthropod
Definition
Ctenphore (comb jelly)
Term
Flow of food in amphioxus?
Definition
  1. Oral Cirri
  2. Wheel Organ
  3. Pharynx
  4. Midgut Diverticulum
  5. Hindgut
  6. Anus
Term

Which form of caudal fin is only found in extinxt animals?

  • heterocercal
  • hypocercal
  • homocercal
  • diphycercal
Definition

Hypocercal

 

Term

Tye fossil Haikouella most closely resembles...

  • Amphioxus
  • Placoderm
  • Tunicate Larvae
  • Acorn worm
  • Sea lily
Definition
Amphioxus
Term
Hagfish produce...
Definition
copious amounts of slime to escape predators
Term
Ammocoetes and amphioxus appear similar; however, only ammocoetes has a...
Definition
Muscular pharynx.
Term
The head skeleton of a shark does NOT consist of...
Definition
Dermatocranium
Term
Roofing bones of the skull are what type of bone?
Definition
Dermal bone
Term
Conodonts are of particular evolutionary interest because they seem to...
Definition
be very early animals that had dentine and enamel.
Term
Ostracoderm
Definition
an extinct jawless fish of the Cambrian to Devonian periods, having a heavily armored body.
Term
Conodont
Definition
an extinct marine animal of the Cambrian to Triassic periods, having a long wormlike body, numerous small teeth, and a pair of eyes. It is now believed to be the earliest vertebrate.
Term
Placoderm
Definition
an extinct fish of the Devonian period, having the front part of the body encased in broad flat bony plates.
Term
Hagfish (Myxini)
Definition
a primitive jawless marine vertebrate distantly related to the lampreys, with a slimy eellike body, a slitlike mouth surrounded by barbels, and a rasping tongue used for feeding on dead or dying fish.
Term
Cycloic and Ctenoid scales are made of...
Definition
only bone.
Term
When a lamprey is feeding, they respiratory current of water enters through the _________ and exits through the __________.
Definition
Pharyngeal slits; pharyngeal slits
Term
What characteristic do Dipnoi, Holocephali, and skates have in common?
Definition
Grind food using flat teeth.
Term
The bones in the limbs of an amphibian can be most readily homologized to the bones or cartilages in the fins of...
Definition
Rhipidistia
Term
Rhipidistia
Definition
The Rhipidistia were lobe-finned fishes that are the ancestors of the tetrapods
Term
Adult urochordates posses
Definition
pharyngeal slits
Term
Homocercal Tail
Definition
Symmetrical and the supporting rod pointed up
Term
Most actinopterygians have
Definition
Flexible fins supported by lepidotrichia
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