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Med Term- Muscles
| Question | Answer |
|---|---|
| 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
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