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Flashcards in muscles Deck (27)
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1

skeletal muscles

muscles that make things move, has multiple nuclei, voluntary, holds skeleton together, aids in movement and helps maintain body posture, striated and long

2

smooth

internam, two types (visceral and multi-unit), forms the stomach and intestines along with internal organs except the heart, not striated, contractions are involuntary and does not fatigue

3

cardiac

made of skeletal and smooth muscle, heart, red in color, responds to exercise, striated involuntary contractions done without building an oxygen debt

4

muscular system

largest tissue mass in the horse's body, controls movement, performance of vital functions

5

cardiac muscle

involuntary, strongest muscle in the body, most important muscle

6

fast twitch

used for speed, fatigue quickly

7

slow twitch

resistant to fatigue, used for long, low power work and endurance.

8

brachiocephalicus

base of jaw to humerus. moves whole head side to side, swings legs forwar

9

splenius

turns and extends neck, makes up the top line if well developed

10

syssarcosis

the muscle connection between the thoracic limb and the body

11

trapezius

flat, sheetlike muscle that covers all thoracic vertebrae, lifts shoulder

12

masseter

opens and closes the jaw, allows chewing

13

rectus capitus

allows head to flex side to side

14

bicep brachii

flexes elbow

15

anterior and posterior pectoral

helps pull leg forward and backward, adducts the forelimb

16

extensor capri radialis

extends the knee

17

digital extensor

extends the carpus and digits

18

gluteus superficialis

from croup to sacrum, used in rearing, galloping and kicking

19

bicep femoris

from gluteals to patella and tibia, maintains hip joint in extension

20

latissimus dorsi

lower thoracic vertebrae, flexes the shoulder and pulls the foreleg back

21

intercostal

between ribs, aids in breathing

22

longissimus dorsi (lumbar muscle)

main muscle used in rearing, kicking, jumping and aids in turning. longest and strongest muscle in the body

23

semitendinosus

from bicep femoris to back of hindquarters, extends hip and hock joints

24

tensor fasciae latae

moves the stifle

25

saccrococcygeus

tail muscle, responsible for all tail movement

26

long digital extensor

flexes hock

27

lateral digital extensor

flexes hock