18 Questions
What type of vertebral column is most common among turtles?
Procoelos
Which avian skeletal region supports large tail feathers?
Caudal
In mammals, which region of the vertebral column often has 4-7 lumbar vertebrae?
Lumbar
What is the function of ribs in vertebrates?
Attachment to sternum ventrally
Which mammalian group may have a fusion of some or all cervical vertebrae?
Whales
What type of bone is a pygostyle in birds?
Plow-like bone
What is the primary function of ribs in the skeletal system?
To protect the heart and lungs
Which of the following is NOT a component of the axial skeleton?
Pelvic girdle
In mammals, the skeletal system is classified into two main divisions. Which of the following is NOT one of these divisions?
Dermal skeleton
In birds, which of the following skeletal adaptations is NOT observed?
A fully ossified endoskeleton with no cartilaginous components
Which of the following statements about the turtle skeletal system is TRUE?
The ribs are fused to the carapace (upper shell) and plastron (lower shell)
During embryonic development, which of the following structures is involved in the formation of vertebrae?
Somites
What is the main function of the ribs in the vertebral column?
To allow for breathing movements
What is the difference between the dorsal and ventral ribs found in fish?
Dorsal ribs pass into the horizontal skeletogenous septum, while ventral ribs arch ventrally in the body wall
Which of the following is true about the ribs of tetrapods (four-limbed vertebrates)?
Ribs are bicipital (two-headed) with a tuberculum and capitulum
How do the ribs of turtles differ from other reptiles?
The costal plates of turtles are fused to the underside of the carapace
Which of the following is a characteristic of the ribs in snakes?
Snakes have long, curved ribs that extend from the axis to the tail region
What is the purpose of the long, flexible ribs in the neck region of cobras?
To allow the cobra to spread its neck when threatened
This quiz provides an overview of the skeletal system, focusing on the functions and structure of the skeleton in animals. It covers the shape and support it provides, organ protection, hemopoiesis, muscle attachment, and types of skeletons such as dermal bones, somatic skeleton, and visceral skeleton.
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