UNIT 7 Flashcards
Which of the following muscles is responsible for medially rotating the tibia on the femur when the knee is flexed?
Semitendinosus
Carpal tunnel pressure is sometimes relieved by surgically excising part or all of which structure?
Flexor retinaculum
The transfer of phosphate from CP to ADP is catalyzed by __________.
creatine kinase
The minimum stimulus needed to cause muscle contraction is called the __________.
threshold
A butcher who cuts the distal portion of his fingers may cut the __________ tendon.
flexor digitorum profundus
What term best describes the relationship between the pronator quadratus and supinator?
Antagonists
The protein that acts as a calcium receptor in skeletal muscle is __________.
troponin
Why does one continue to breathe heavy after rigorous physical activity has stopped?
The body requires more oxygen to restore levels of ATP and creatine phosphate.
In lifting a heavy weight from the floor, one should use the power of the __________ in order to avoid straining the lower back.
knee and hip extensors
Which of the following extensors of the head is the most superficial?
Trapezius
The deepest muscle of the abdominal wall is the __________.
transverse abdominal
Why is the contraction strength of smooth muscle relatively independent of its resting length?
It does not have sarcomeres.
