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Med Term- Muscles

QuestionAnswer
The study of muscles Myology
Strong, fibrous white bands that attach muscles to bones, enabling the movement of a part located some distance from the contracting muscle Tendons
The surrounding portion around tendons when there is a long distance from the tendons to their distal attachment or where the tendon pulls over a joint Tendon sheath
A sheet of fibrous membrane that encloses muscles and separates them into groups. Fascia
Strong bands of fibrous tissue connecting bones or cartilage Ligaments
A broad sheet of fibrous connective tissue that serves as a tendon to attach muscle to bone or a fascia to bind muscles together Aponeurosis
The less moveable of the two points of attachment of a muscle Origin
The point of attachment that moves when a muscle is contracted Insertion
Causes muscle to move by stimulating a group of muscle fibers Motor nerve
Muscle cells are long and slender and because of their shape are called Fibers
The plasma membrane of a muscle cell Sarcolemma
Cytoplasm of a muscle cell Sarcoplasm
Voluntary, striated muscle attached to the skeleton Skeletal muscle
Non-striated, involuntary muscle found in the stomach, intestines, uterus, blood vessels, and iris of the eye Smooth muscle
Involuntary, striated muscle found in the heart Cardiac muscle
A muscle that actively produces movement Prime mover
Muscles in opposition of prime movers Antagonists
Muscles that contract simultaneously with the prime movers to help execute a movement or steady a part Synergists
Not paired Azygous
Two, three, or four Bi, tri, quad
External or outer Externus
Slender Gracilis
Wide Latissimus
Long Longissimus or Longus
Intermediate Medius
Surrounding Orbicularis
Square Quadratus
Straight Rectus
Diamond shaped or shaped like a kite Rhomboideus
Irregularly triangular or unequally three sided Scalenus
Sawtoothed Serratus
Round or cylindrical Teres
Crosswise Transversus
Great Vastus
Muscle that moves the eyelid Orbicularis oculi
Muscles of mastication Masseters
Important for respiration and for supporting the trunk of the body in all quadruped species Serratus muscle group
Forms chest and adducts forelimb Pectoral muscle group
Broadest muscle in the back; supports forelimb and aids in the flexion of the shoulder Latissimus dorsi
Iliocostalis, Longissimus, and Transversospinalis make up this group; act as extensors of the vertebral column and produce lateral movements of the trunk Epaxial muscle group
This group of muscles used during respiration to aid in the expansion and contraction of the thorax External intercostals, internal intercostals, diaphragm
Extends forelimb Triceps brachii
Flexes forelimb Biceps brachii
Fibrous band of connective tissue running the entire length of the center of the ventral abdominal floor Linea alba
Major muscles over pelvis, extends and abducts limb Gluteal group
Includes the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius Quadriceps femoris group
Descends on the posterior of hind limb, it's tendons forming the "hamstrings." Semi group
Flexes the leg and foot Gastrocnemius
Smooth muscles that attach to the hair on the dorsum that, when stimulated, contract to raise hair on the back Arrector pili
Attaches to the dermis and is responsible for the insect-repelling skin twitch in some large animals, such as the horse Cutaneous trunci
The muscle that is part of the spermatic cord of male animals and attaches to the scrotum Cremaster
Created by: mdupre8705