Unit 2 Support Systems- Muscular System Flashcards
heat production,
thermogenesis
muscles shorten and pull on bones which produces movement
motion
contract of muscles keeps us upright and maintains posture
posture
surrounds our hollow organs and contractions propel substances through the, aid in their emptying, or helps control their volume
smooth muscle
anterior aspect of the upper arm
biceps brachii
posterior aspect of the upper arm
triceps brachii
posterior aspect of the neck
trapezius
covers the shoulder
deltoid
internal muscle that separates the thoracic and abdominal cavities. attached to the back of the rib cage
diaphragm
chest muscle
pectoralis major
superficial muscle of the thoracic and lumbar region of the back
latissimus dorsi
runs vertically along the abdomen
rectus abdominus
posterior aspect of the lower leg
gastrocnemius
posterior aspect of the thigh
hamstring muscle group
anterior aspect of the thight
quadriceps msucle group
buttocks region
gluteus maximus
describe the characteristics of cardiac muscle
Appearance: striated Control: involuntary (no conscious control) Location: heart
describe the characteristics of smooth muscle
Appearance: nonstriated Control: involuntary (no conscious control)Location: around hollow organs (bladder, uterus, etc)
describe the characteristics of skeletal muscle
Appearance: striated Control: voluntary (conscious control) Location: attached to bones
attach muscles to bones
tendon
inflammation of the tendons due to overuse or age-related changes of the tendon
tendonitis
a tearing of muscle or its attaching tendon
strain
occurs when the muscle is stretched causing micro-tears in the muscle fibers
1st degree strains
occurs when the muscle or tendon is partially torn
2nd degree strains
occurs when the muscle is completely ruptured
3rd degree strains
involuntary muscle contraction. also called “charlie horse” or “muscle cramp”
muscle spasm
inherited disorder in which the muscles are missing a certain protein causing degeneration of muscle tissue
muscular dystrophy
