Chapter 1 Flashcards
to LEAN
Small ruminants vs. cattle, which are more prone to pressure sores?
cattle
small ruminants vs. cattle, which have higher nutritional needs/kg body weight?
small ruminants
Why are polar bears larger than other bears?
smaller animals lose heat faster
Why is the life span of horses >10x that of mice?
Smaller animals have higher metabolic rates so they “burn up” faster
How would the size of an animal affect vulnerability of pressure damage and why?
Pressure is a function of weight/area so that when animals suffer prolonged recumbency pressure damage is greater in larger animals causing pressure sores
Why do cats have better survival rates than dogs and humans that fall from tall buildings?
Smaller animals have lower terminal velocity when falling. Their bodies act as parachutes.
Why are there 8 cervical nerves but only 7 cervical vertebrae in mammals?
extra nerve at C7-T1, called C8
What is the main factor affecting cervical length in quadruped mammals?
forelimb length
Compare cranial end of cervical vertebral bodies in horse vs. dog.
convex in horse, flat in dog
Compare caudal end of cervical vertebral bodies in horse vs. dog
concave in horse, flat in dog
direction of movement of atlanto-occipital joint
yes joint, no rotation
direction of movement of atlanto-axial joints
no joint, it rotates
How does the bird differ from mammals in neck joints?
Single occipital condyle so more rotation
How do C1 and C2 differ from all other verterbrae?
uniquely shaped, C1 (atlas) has wings but lacks a body, C2 (axis) has large spinous process and has a dens
How does C7 differ from C3-C7?
Transitional Shape, taller spinous process, lack of perforated transverse process, presence of facets for articulation with first pair of ribs
mindventral skin fold of cattle
dewlap
region between ears and immediately caudal
poll
without horns
polled