Category C: Anatomy Flashcards
What part of the horse is used mainly to support the horse at rest?
Front legs
Which legs have more lameness and unsoundnesses?
Front legs because they support more weight
Which feet grow faster, the front or the hind?
Hind because they support less weight
Why should a horse have large nostrils?
because they cant breathe through their mouth
How many bones are found in the horses neck regardless of how long or short the neck is?
Seven
What is the ideal angle of the shoulder and pasterns of the horse?
45 degrees
What are the feeler hairs on the horse’s muzzle and eyes commonly called?
Whiskers
A healthy horses hooves grow how much per month?
3/8 to 1/2 inch
When a normal healthy horse is walking, what part of the hoof is the last to touch the ground: the heel, toe or frog?
toe
The lateral cartilages are wing-like structures attached to the sides or wings of the what?
Coffin bone (Pedal bone)
Which teeth are used to determine the age of the horse?
Front teeth or incisors
How many teeth will a ten month old foal of either sex have?
24–12 incisors (front teeth) and 12 pre molars (grinding teeth)
How many teeth will a mature male horse have?
40 (42 if they have wolf teeth) –24 molars (grinding teeth), 12 incisors (front teeth) and 4 canine teeth
How many teeth will a mature mare have?
36 – 12 incisors and 24 molars. mares do not usually have canine teeth
Muscles that control leg movement end at what part of the horses leg?
At the knees and hocks
What is the average number of cheek teeth located on each side of the jaw?
6 teeth on each jaw
What is the part of the hoof that lies between the wall and the frog and covers most of the bottom surface of the hoof?
sole
what part of the hoof lies between the wall and the sole and forms a light colored line around the inside of entire hoof wall?
White line
What is the triangular shaped wedge that lies in the middle of the hoof between the sole and the heel?
frog
What part of the horse is located on top of the head and between the ear?
poll
What part of the horse is located at the very bottom of the horse leg and needs to be trimmed every 6-8 weeks?
hoof
What is the long hair that falls down the horses face and helps keeps bugs out of the horses eyes?
forelock
What is the long hair that the horses uses to swish away flies and other pest found at the rear end of the horse?
tail
What is the long hair found along the neck of the horse between the ears and the withers?
mane
How many cheek teeth does an adult horse have?
24
How many permanent teeth does a full grown mare have?
36 teeth
What are the slender teeth in front used for biting grass, feed and etc?
Incisors
What is another name for the loin?
Coupling
What part of the tooth fist appears as a narrow yellow mark in the front of the central enamel ring and changes to dark circles near the center of the tooth as the horse ages?
Dental star
At what age does a horse become smooth mouthed?
11 years
What provides the main propulsive force for forward movement?
Hindlegs
What part of the horse serves as the powerhouse or propeller?
Hindquarters
Where on the legs would you find the gaskin?
Above the hock on the leg
what part of the hoof acts as a sponge where blood pools when the pressure on the hoof decreases and forces blood into the veins and up the leg when it is compressed and pressured is increased?
plantar cushion
Name 2 places that horses can not see in due to blind spots.
Directly in from of him or directly behind him.
A horses front legs support how much more weight that the hind legs?
9%-10% more
Where is the horses center of gravity located?
About 6 inches behind the elbow.
Where is the horses center of motion located?
About 10 inches behind he center of gravity or above the 15the vertebrae.
What part of the horse should be clean cut and free of any fatty tissue to help movement if the head near the poll and allow easy breathing?
Throatlatch
What are the 2 types of check teeth?
Molars and premolars
What is the term for the artificially altering teeth by burning or chemically to make them look younger than their actual age?
Bishoping
Which teeth are smaller, whiter, rounder, and have a noticeable neck and are usually gone by the time that the horse is 5 years old?
Milk (temporary) Teeth
What are the rear or grinding teeth called?
Molars
If the incisor shape is round, his shape is about how old?
About 15 years old
A dovetail notch appears on the upper corner incisor at what 2 ages?
7 years and between 12-15 years
Name the structure in the horse’s foot that is responsible for absorbing the shock of it’s stride.
Frog
What part of the tooth first appears as a narrow yellow mark in front of the central enamel ring & changes to dark circles near the center of the tooth as the horse ages?
Dental Star
At what age to permanent premolars erupt?
2 1/2, 3 & 4 years old
What are deciduous teeth?
Baby teeth
At what age does Galvayne’s groove first appear?
10 years on upper corner incisor
when a normal healthy horse is walking, what part of the hoof is the last to touch the ground: the heel, the frog or the toe?
The toe
The lateral cartilages are wing-like structures attached to the sides or wings of what?
The coffin bone (pedal bone)
The digital arteries supply blood to the sensitive structures located where?
In the foot
What are the centers, when referring to teeth?
2 central pairs of incisors above and below
What are the intermediates, when referring to teeth?
Pair adjacent to the central incisors or centers
Name 4 major ways to estimate the age of horses by the appearance of their teeth.
Occurrence of permanent teeth, disappearance of cups, angle of bite, shape of the surface of permanent teeth
What are the 2 small teeth that may appear just in front of the upper molars of the male horse & they may interfere with the bit while riding?
Wolf teeth
What horse will have more teeth, a two week old foal, a 2 year old mare or a 10 year stallion?
10 year old stallions (40-42).
What part of the horse is located between the back and the rump & is the area that the second rider sits on wile riding double?
Loin
What part of the horse is located between the barrel & thigh & has a swirl of hair that goes in a different direction than the other hair in the area?
Flank
What part of the horse is located forearm & cannon & is comparable to the hock in the hind leg?
Knee
What part of the horse is located between the loin and the tail?
Croup or rump
What of the horse is a joint located between the gaskin & scanning on the hind leg?
Hock
Name 4 ways to identify a permanent tooth from a temporary one.
Permanent teeth are larger and longer, have broader her neck area between the root and the crown, parallel grooves and ridges on face of incisors, are darker in color and are flatter.
What is the term for when upper permanent incisors have contact with the corresponding bottom incisor?
They are in wear
What causes the sharp enamel points on the horses teeth?
Wear resulting from lower jaw being more narrow than upper jaw
What are the deep indentures in the center surface of the young permanent incisors which are used to help determine age?
Cups
Which occurs first for a smooth mouth or a full mouth?
Full mouth (5 yrs) (smooth mouth -11 yrs)
At what age does a horse have a Full mouth when referring to its teeth?
5 years
What is the nature’s hoof conditioner?
Water
Where on the horse is the gaskin muscle located?
Between hock and stifle
What acts as a fulcrum point to redirect the deep flexor tendon against the coffin bone as the horse move forward?
Navicular bone (distal sesamoid)
What appears in the incisor, as the cups disappear?
Dental stars
What provides the main propulsive fourth for forward movement?
Hindlegs
What are the retained deciduous teeth called?
Caps
What is the proper name for the cleft of the frog in the horse’s foot?
Central sulcus of the frog
How many deciduous teeth does a 1 year old foal have?
24
Where, specifically, is the external loin are coupling located on the horse?
On the back between the last rib and the croup
What are the wing-like structures attached to the side of the coffin bone?
Lateral cartilage
What disappears and then reappears later as dark circles near the center of the tooth?
Dental stars
What is the part of the back just in front of the base of the tail and in back of the loin?
Croup (or rump)
What are the horny growth on the inside of the horse’s legs found above the knees & below the hocks?
Chestnuts
Which legs support more weight while the horse is at rest?
Front legs
What part of the horse is located at the end of the neck & between the back & forms a raised bony ridge?
Withers
What is the elastic, fibro-fatty portion of the coronary band that is covered by a sensitive portion of the coronary band & produces & nourishes the hoof wall?
Coronary cushion
Name the 4 external parts of the horse’s topline.
Withers, back, loin (coupling), croup
What does monocular vision mean?
Ability to see separate objects with each eye at the same time
Since there are no muscles in the lower legs, what controls the cannon, pastern & foot action?
Tendons & ligaments