Exam 1 - Vertebral Column General Characteristics and Measurements Flashcards
What is the number of vertebrae in a typical adolescent?
33 segments
What is the number of vertebrae in a typical adult?
26 segments
What is the number of vertebrae in a typical spine?
24 segments
what constitutes the spine?
the 24 presacral segments
cervical, thoracic, and lumbar vertebrae
How many segments unite to form the typical sacrum?
5 segments
How many segments unite to form the typical coccyx?
4 segments
Which mammals do not have seven cervical vertebrae?
two toed sloth
manatee
ant bear
three toed sloth
Which mammals have more than seven cervical vertebrae?
ant bear
three toed sloth
Which mammals have less than 7 cervical vertebrae?
two toed sloth
manatee
What does the term “cervical” refer to?
the region of the neck
What does the term “thoracic” refer to?
breast plate / chest
it referred to the armor bearing region of the torso
What other term is often used to identify the vertebral segments of the chest?
the dorsal segments
the dorsals
What is the typical number of segments in the dorsal or thoracic region?
12 segments
What does the term “lumbar” refer to?
the loin
the region between the rib and the hip
What is the typical number of segments in the lumbar region?
5 segments
