- The neurotransmitter that stimulates skeletal muscle is _____________.
- Smooth muscle cells have __________, whereas skeletal muscle fibers do not.A) sarcoplasmic reticulumB) tropomyosinC) calmodulinD) Z discsE) myosin ATPase
- Which of the following muscles is a flexor of the neck.A) splenius capitisB) trapeziusC) sternocleidomastoidD) semispinalis capitis
- Which of the following muscles is not attached to the scapula.A) pectoralis minorB) biceps femorisC) serratus anteriorD) rhomboideus
- The head of myosin attach to actin to form aA) sarcomereB) tropomyosinC) power strokeD) cross bridge
- Which of the following muscles inserts onto the calcaneus.A) soleusB) tibialis posteriorC) peroneus longusD) popliteusE) satorius
- The segment from one Z disc to the next is called a(n)A) A bandB) sarcomereC) H bandD) I band
- Muscle contains an oxygen-binding pigment called _________.
- The minimum stimulus intensity that will make a muscle contract is called _________.
- The type of muscle contraction where the muscle contracts but exhibits no change in length is calledA) isometric contractionB) isotonic contractionC) concentric contractionD) eccentric contraction
- ACh receptors are found mainly in A) synaptic vesicles.B) terminal cisternsC) thick filaments.D) thin filaments.E) junctional folds.
- The diamond-shaped region that is located between the thighs is called theA) popliteal space.B) perineum.C) urogenital diaphragm.D) cubital fossa.E) femoral triangle.
- Before a skeletal muscle fiber can contract, ATP must bind to A) a Z disc.B) the myosin head.C) tropomyosin.D) troponin.E) actin.
- T tubules are extensions of the ______in skeletal muscleA) sarcoplasmic reticulumB) sarcolemmaC) junctional foldsD) cytoskeletonE) thick filament
- A bundle of muscle fibers surrounded by perimysium is called a/an ________.
- Approximately how many skeletal muscles are there in humans.A) 206B) 150C) 400D) 600
- Which of the following muscles inserts onto the patella.A) sartorius muscleB) quadriceps femoris muscleC) biceps femorisD) semitendinosus muscleE) gluteus maximus
- A muscle that works with another to produce the same or similar movement is called a/an _________.
- These muscles are prime movers in flexion at the knee.A) gluteus medius and gluteus maximusB) vastus lateralis and gracilisC) hamstring group
- The galea aponeurotica joins which two muscles.A) trapezius and platysmaB) frontalis and occipitalisC) temporalis and masseterD) depressor anguli oris and depressor labii inferiorisE) medial pterygoid muscle