week 1 Flashcards
Which mammals do not have 7 cervical vertebrae?
The two toed sloth, manatee, ant bear, and the three toed sloth.
Differences in the number and morphology of vertebrae within the population based on age or developmental variation is identified as which type of variation?
Ontogenetic variation.
Which variations account for the disparity in number and morphology of vertebrae within the population?
Gender variation or sexual dimorphism, ontogenetic variation, geographic or population based variation, and idiosyncratic variation.
What is the length of a typical male spinal column?
About 70 centimeters or 28 inches.
What is the length of the male cervical region?
About 12 centimeters or 5 inches.
What is the length of the male thoracic region?
About 28 centimeters or 11 inches.
Based on the numbers for individual regions of the vertebral column, what is the length of the male spine?
About 58 centimeters or 23 inches.
Distinguish between motion and locomotion.
Motion is movement without travel; locomotion is movement to a new site/location.
What organs are specifically associated with the horizontal axis of the skull?
The eye and the vestibular apparatus of the inner ear.
What is the general shape of the vertebral body at each region of the spine?
Cervical - rectangular
Thoracic - triangular
Lumbar - reniform
