Chapter 9 Exam 2 Flashcards
provides movement for the body in conjunction with support from the bones
Muscular system
one of three types of muscles in the body; but the only one that is under voluntary control
Skeletal Muscle
sac of synovial membrane that contains synovial fluid; decreases friction where a tendon rubs against a bone near a synovial joint
Bursa
Burs/o-
bursa
Thin connective tissues sheet around each muscle fascicle and around the muscle itself; merges to become part of the tendon
Fascia
Fasci/o-
fascia
where the tendon of a muscle ends on a bone that moves as the muscle contracts or relaxes
insertion
where the tendon of a muscle begins and is attached to a stationary (or nearly stationary) bone
Origin
cordlike; white band of neoelastic fibrous connective tissue that attaches a muscle to a bone
Tendon
Tendin/o-
Tendon
moving a body part away from the midline
abduction
moving a body part toward the midline
Adduction
straightening and extending a joint to increase the angle between 2 bones or two body parts
Extension
bending a joint to decrease the angle between two bones or body parts
Flexion
Turning the palm of the hand posteriorly or downward
Pronation
moving a body part around its axis
Rotation
Turning the palm of the hand anteriorly or upward
Supination
muscle of the side of the face that moves the cheek
buccinator muscle
Buccinat/o-
cheek
muscle of the side of the face that moves the mandible upward
Masseter muscle
Masset/o-
chewing
muscle of the neck thatbends the head toward the sternum (flexion) and turns the head to either side (rotation)
sternocleido-mastoid muscle
muscle of the shoulder that raises the arm and moves the arm away from the body (abduction)
deltoid muscle
Delt/o-
triangle
muscle of the back that moves the arm posteriorly and medially toward the verebral column (adduction)
latissimus dorsi muscle
muscle of the chest that moves the arm anteriorly and medially across the chest (adduction)
pectoralis major muscle
Pector/o-
chest
muscle of the shoulder that raises the shoulder; pulls the shoulder blades together; and elevates the clavicle
Trapezius muscle
muscle of the anterior upper arm that bends the upper arm toward the shoulder (flexion) and bends the lower arm toward the upper arm (flexion)
biceps brachii muscle
muscle of the posterior upper arm that straightens the lower arm (extension)
triceps brachii muscle
muscle of the posterior lower leg that bends the foot downward (plantar flexion) and lets you staand on tiptoe
gastrocnemius muscle
muscle of the buttocks that moves the upper leg posteriorly (extension) and rotates it laterally
gluteus maximus muscle
collective name for muscles in the posterior upper leg that move the upper leg posteriorly (extension) and behind the lower leg toward the buttocks (flexion)
hamstrings
collective name for the muscles in the anterior and lateral upper leg that straighten the lower leg (extension)
Quadriceps femoris
shortening of the length of all the muscle fibers and of the muscle itself; opposite of relaxation
Contraction
an increase in the size of a muscle
hypertrophy
troph/o-
development
loss of muscle bulk in one or more muscles; caused by a lack of use or by malnutrition
atrophy
Atrophy word breakdown
a- away from; without -trophy process of development
inactivity or paralysis coupled with continuing nerve impluses can casuse an arm or leg muscle to become progressively flexed and drawn into a postion where it becomes nearly immovable
contrature
Contracture word breakdown
contract/o- pull together -ure system; result of
pain located at specific; hyperirritable trigger points in the muscles of the nect; back or hips; may be related to an overreaction to painful stimuli with a possible history of prior injury or a genetic predispostion
fibromyalgia
Fibromyalgia word breakdown
fibro/o- fiber my/o- muscle alg/o- pain -ia condition; state; thing
genetic inherited disease due to a mutation of the gene that makes the muscle protein dystrophin; the muscles weaken then atrophy
dystrophy
Dystrophy word breakdown
dys- painful; difficult; abonormal trophy process of development
most common and severe form of muscular dystrophy
Duchenne’s muscular dystrophy
condition affecting the muscles; tendons; and sometimes the nerves; occurs as a result of trauma caused by repetitive movements over an extended period of tiem
Repetitive strain injury (RSI)
RSI
Repetitive strain injury
benign tumor in a muscle
rhabdomyoma
Rhabdomyoma word breakdown
rhabd/o- rod shaped my/o- muscle -oma tumor; mass
tear in the rotator muscles of the shoulder that surround the head of the humerus
rotator cuff tear
an uncomfortable restlessness and twitching of the muscles of the legs; particulary the calf muscles; along with an indescribable tingling; aching; or crawling-inset sensation
Restless legs syndrome (RLS)
RLS
Restless legs syndrome
small; involuntary; sometimes jerky; back-and-forth movements of the hands; head; jaw; or extremities; continuous and cannot be contolled by the patient
tremor
inflammation of the bursal sac because of repetitive muscle contractions or pressure on the bone underneath the bursa
bursitis
Bursitis word breakdown
burs/o- bursa -it is inflammation of infection of
progressive disease in which collagen fibers in the fasia in the palm of the hand become thickened and shortened; causes a contracture and flexion deformity of the fingers
contracture
Contracture word breakdown
contract/o- pull together -ure system; result of
semisolid or fluid- containing cyst that develops on a tendo; often in the wrist; hand; or foot; rounded lump under the skin and may or may not be painful
ganglion
inflammation of any tendon from injury or overuse
tendinitis
tendinitis word breakdown
tendin/o- tendon -it is inflammation of; infection of
procedure to diagnose muscle disease or nerve damage; a needle electrode inserted into a muscle records electrical activity as the muscle contracts and relaxes
electromyography
electromyography word breakdown
electr/o- electricity my/o-muscle -graphy process of recording
tapping briskly on a tendon causes an involuntary; automatic contraction of the muscle connected to that tendon. Tests whether the muscular-nervous pathway is functioning normally
Deep tendon reflexes (DTR)
DTR
deep tendon reflexes
procedure to remove a ganglion from a tendon
ganglionectomy
procedure to diagnose muscle weakness that could be caused by many different muscular diseases
muscle biopsy
biopsy word breakdown
bi/o- life; living organisms; living tissues -opsy process of viewing
ADLs
activities of daily living
COTA
certified occupational therapy assistant
DTRs
deep tendon reflexes
EMG
electromyography
IM
intramuscular
MD
muscular dystrophy
PT
physical therapy; or physical therapist
ROM
range of motion
RST
repetitive strain injury