Anatomy Questions

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