Mini Exam Flashcards
What muscle shares the action of latissiumus Doris?
Teres major
Name three muscle that flex the arm
Biceps brachii, pect major, deltoid
Name two muscles that extend the forearm
Triceps brachii, anconeus
Name three muscles that flex the knee and which is most lateral
Semitendinosis, semimembranosis, biceps femoris(most lat)
Knee extension is primarily accomplished by what muscles?
Quadriceps femoris: rectus femoris, vastus lateralis, medialis and intermedials
What muscles will laterally or externally rotate the humerus(arm)?
Infraspinatus, teres minor, deltoid
What muscles medial rotate the humerus(arm)?
Lats, teres major, deltoid, pect major
Adduction of the arm
Lats, pect major, teres major
What muscles will flex both arm and forearm?
Biceps brachii
Hip adduction is accomplished by what muscles?
Pectineus, adductor brevis, adductor longus, adductor magnus, gracilis
What allows hip extension
Gluteus Maximus
Are you strong abducting or adducting your hip? Why?
Adduction- adductors are powerful, abduction is via few, smaller muscles (gluteus medius, sartorius)
What is the function of GOGO muscles and most of the muscles deep in the superior, posterior thigh
Hip stabilization via lateral rotation
Bouncing a soccer ball on your knee would require flexion of
iliopsoas, rectus femoris, sartorius
Landing during running would require eccentric contractions of
Quadriceps muscle, hamstring
Smooth muscle
Controlled by Autonomic nerve system, tube/hollow organ
Cardiac muscle
Found in the heart, modulated by neural activity
Skeletal muscle
Moves us around and responsible for most our behavior; controlled
How is atp used in muscle contraction and where does I come from
Creatine phosphate, glycogen, aerobic respiration
Isometric vs isotonic
Isometric- muscle cannot move load
Isotonic- muscle exerts constant load
Concentric
Muscle shorten
Eccentric
Muscle lengthens due to stretching of external force (walking down stairs)
Oxidative phosphorylation
Purification acid -> Krebs cycle -> CO2 H2O 36 ATP
Muscle fatigue
Relative deficit of atp , other contributors: lactic acid, ionic imbalance