The sarcolemma is the:
plasma membrane of a myofiber/muscle cell
Which of the following is not a function of muscle tissue:
producing body movement
stabilization of body positions
fat storage
regulation of organ volume
fat storage
A motor unit is (consists of) :
a motor neuron plus ALL the skeletal muscle fibers it stimulates
cramp
painful spasmodic contraction, occurs due to lack of minerals or other causes
myomalacia
softening of a muscle
Smooth muscle tissue is found:
lining hollow organs and blood vessels
The muscle protein whose function is related to its golf club-like shape is:
myosin
Megan’s car is stuck in the mud. Casey and Brooke are pushing at the rear of the car, but it won’t budge. Which of the following describes the type of contractions occurring in Casey and Brooke’s arm muscles:
isometric contractions
fibromyalgia
chronic soft tissue pain, 18 known tender points
myositis
inflammation of muscle fibers
True or False: Can cardiac muscle stay contracted 10-15 times longer than skeletal muscle?
True
The Z disc is the:
zigzag of protein which separate one sarcomere from another
Donni is a workout queen! When she weight trains, a bicep curl is her FAVE exercise because she can SEE her biceps brachii muscle shortening and it makes it look huge. Which type of movement is she doing?
concentric isotonic
myofacial pain syndrome
muscular pain disorder with trigger points
spasm
sudden involuntary contraction of a single muscle in a group of muscles (intercostal contractions are common)
A type of muscle tissue that is both striated and involuntary is:
Fused tetanus is:
a sustained contraction with no relaxation nor twitches can be detected
Muscle spindles are proprioceptors which:
are found in the muscle belly and monitor muscle length
muscular dystrophy
genetic muscle disease involving dystrophin muscle protein
myositis ossificans
calcium deposits in traumatized area usually the arm or leg
The function of myoglobin is to:
bind oxygen in muscle cells & is a reddish pigment
Calcium is stored in the ___________________in a muscle cell.
sarcoplasmic reticulum
Tendon organs are proprioceptors which:
are found in tendons & guard against excessive tension and force
myoma
tumor in a muscle
contracture
abnormal joint condition causing flexure & fixation