7- Equine Hoof Flashcards
When a horse is in a stance phase, it is _________, meaning the venous blood pools.
Diastolic
When a horse is in a flight phase, it is ________, meaning the venous blood is forced up the leg.
Systolic
What is the periople?
Protective layer to prevent desiccation, analogous to a cuticle
Primary weight-bearing structure, protection, force dissipation, traction, keritinized, tubular epidermis.
What hoof structure does this describe?
Wall
Label the picture
Provides additional weight bearing surface, prevents excessive expansion.
What hoof structure does this describe?
Bars
Identify red and green structures in this picture
Green- Bar
Red- Wall
Which structure in a horse’s hoof is used for shock absorption?
Heel
Junction between solar and laminar epidermis, area where nails are driven in on a shod horse.
Which hoof structure is this describing?
White line
Protects the bottom of the distal phalanx, bears less weight compared to the wall, provides traction
Which structure in the equine hoof is this describing?
Sole
Lies over the digital cushion——> peripheral pump, provides traction
Which structure in the equine hoof is this describing?
Frog
Name the colored structures
Yellow structure?
Coronary band
Junction between the hoof wall (coronary epidermis) and skin (epidermis)
Which structure in the equine hoof does this describe?
Coronet
What is the structure in blue?
Coronet
Name these two structures
Name the structures with arrows
How much does a healthy hoof grow per month?
6-9 mm
May slow in the winter to about 3 mm per month
Which artery/vein is circled
Palmar/plantar digits artery and vein
What is the function of the navicular bone (distal sesamoidean bone)?
- Acts as a pulley
- Lessens the strain of DDFT as it changes direction to cross the coffin joint
- Lowers the work of DDFT to act on distal phalanx
Label the structures with arrows pointing to them
Label the diagram of the navicular apparatus
What happens if the suspensory apparatus fails?
Distal phalanx will begin to rotate, it will no longer be parallel to the sole of the foot, it begins to to tip forward toward the ground. The dorsal surface of the distal phalanx will begin to separate from the hoof wall as well.
