Answer Options:
a) sarcoplasmic reticulum
b) myofibril network
c) mitochondria
Answer: a) sarcoplasmic reticulum
Question: In an isotonic contraction, the muscle ________.
Answer Options:
a) does not change in length but increases tension
b) never converts pyruvate to lactate
c) rapidly resynthesizes creatine phosphate and ATP
d) changes in length and moves the “load”
Answer: d) changes in length and moves the “load”
Question: Foramina allow for passage of ________ through the bone.
Answer Options:
Arteries only
Veins only
Nerves only
Arteries, veins, and nerves
Answer: Arteries, veins, and nerves
Question: Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?
Answer Options:
a) acetylcholine
b) gamma-aminobutyric acid
c) norepinephrine
d) cholinesterase
Answer: a) acetylcholine
Question: Which compartment does skeletal muscle belong to?
Answer Options:
Fat Free Mass
Fat Mass
Answer: Fat Free Mass
Question: Foramina allow for passage of ________ through the bone.
Answer Options:
Arteries only
Veins only
Nerves only
Arteries, veins and nerves
Answer: Arteries, veins and nerves
Question: What is the name of the circular muscle surrounding the mouth?
Answer Options:
Orbicularis oris
Orbicularis oculi
Zygomaticus
Masseter
Answer: Orbicularis oris
Question: Which of the following is an excitatory neurotransmitter secreted by motor neurons innervating skeletal muscle?
Answer Options:
a) acetylcholine
b) gamma-aminobutyric acid
c) norepinephrine
d) cholinesterase
Answer: a) acetylcholine
Question: What is a muscle that provides the major force for producing a specific movement called?
Answer Options:
a) a synergist
b) a fixator
c) an agonist
d) an antagonist
Answer: c) an agonist
Question: The most medial muscle of the “hamstring group” is the ________.
Answer Options:
Semitendinosus
Vastus medialis
Rectus femoris
Semimembranosus
Answer: Semimembranosus
Question: Which cranial bone is named after the secretions that clean and lubricate the eyeballs (tears)?
Answer Options:
lacrimal
lacrima
lacrimal bone
Answer: lacrimal bone (proposed correct answer as not marked in the image)
Question: Name the muscle used to compress the cheek, as in when drinking from a straw.
Answer: buccinator
Question: The portion of the sternum that joins with the clavicles is the ________.
Answer Options:
Body
Sternal angle
Manubrium
Xiphoid process
Answer: Manubrium
Question: Which muscle is involved in raising and lowering the shoulders, as if to shrug?
Answer Options:
Trapezius
Platysma
Sternocleidomastoid
Latissimus dorsi
Answer: Trapezius
Question: In an isotonic contraction, the muscle ________.
Answer Options:
does not change in length but increases tension
never converts pyruvate to lactate
rapidly resynthesizes creatine phosphate and ATP
changes in length and moves the “load”
Answer: changes in length and moves the “load”
Question: Which of the muscles listed below cannot be seen from posterior?
Answer Options:
Rectus femoris
Gluteus maximus
Gastrocnemius
Semimembranosus
Answer: Rectus femoris
Question: Most muscles attach to bone via ropelike dense regular connective tissue known as ________.
Answer: Tendons