30 Questions
What is the function of the aortic arches in protovertebrates?
Feeding
What is the function of the oviducts in vertebrates?
To store eggs and develop embryos
In vertebrates, how are shelled eggs fertilized?
Inside the oviduct
Which structure was added to the heart in gnathostomes?
Conus arteriosus
Which organ is responsible for inserting sperm into the female's reproductive tract in vertebrates?
Pelvic claspers
What is the role of subclavian arteries in the circulatory system of gnathostomes?
Supply the forelimbs
When is the spinal cord considered to have considerable autonomy in vertebrates?
When controlling complex movements like swimming
What is the function of the myelin sheath in jawed vertebrates?
Insulate the axons
What is the main distinction between the central nervous system (CNS) and the peripheral nervous system (PNS)?
Location in the body
What is the main role of the nervous and endocrine systems in an animal?
To coordinate organ and muscle actions
Which system controls the actions of organs and muscles in vertebrates?
Nervous system
In lampreys, what was the purpose of adding additional aortic arches posteriorly?
To accommodate more gill openings
What is the basic unit of the nervous system?
Neurons
Which type of nervous system is known as the voluntary nervous system?
Somatic nervous system
What type of reaction is produced by the spinal cord as a reflex arc?
Reflex reaction
In vertebrate evolution, what has been a trend regarding connections within the spinal cord and between the spinal cord and the brain?
Development of more complex connections
Which structure does the somatic nervous system innervate?
Striated muscles derived from somites
What is the dual type of nervous system found in vertebrates?
Somatic and autonomic nervous systems
What is the primary function of the hair cell in the inner ear?
Detect linear acceleration
Which part of the inner ear contains sensory organs called maculae?
Utriculus
What is the function of the vestibular apparatus in vertebrates?
Detect position in space
Which group of organisms is primarily known for utilizing electroreception?
Fishes
What kind of fluid is found within the sacs and tubules of the vestibular apparatus?
Endolymph
Where are tiny crystals of calcium carbonate located in the inner ear?
Maculae
What do sensory nerves in cranial nerves convey information from?
The head
Which type of nerves supply the lateral line in fishes?
Special sensory nerves
What nerve carries the visceral motor nerve supply to various organs?
Vagus nerve
In vertebrates, what is the front part of the forebrain called?
Telencephalon
Which part of the tripartite brain structure is associated with vision?
Mesencephalon
What are the three parts of the tripartite brain structure in vertebrates?
Telencephalon, Diencephalon, Mesencephalon
Explore the diagrammatic view and early evolution stages of the heart and aortic arches in vertebrates. Learn about the six pairs of aortic arches in protovertebrates, their functions, and the transition to current vertebrate conditions.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
