Myology

Question 0

Found only in the heart. It’s action is involuntary. Is striated.

Answer 0

Cardiac muscle

Question 1

Moves the bones of the skeleton. Is voluntary meaning we can usually control it. Is strained due to alternating dark and light bands of protein.

Answer 1

Skeletal muscle

Question 2

Located in the walls of hollow internal structure like blood vessels, air ways, intestines, etc. lacks striations and so has a smooth appearance. Involuntary.

Answer 2

Smooth muscle

Question 3

From walking and running to typing on a keyboard, skeletal muscle produces the contractions necessary to move our bodies everyday.

Answer 3

Movement

Question 4

Postural muscles continuously contract to maintain posture.

Answer 4

Stabilizing body positions

Question 5

Substances within the body sustained contraction of muscles to hold urine in the bladder, food in the stomach are smooth muscle example.

Answer 5

Storing and moving

Question 6

As muscular tissue contracts, it produces heat, a process known as thermogenesis.

Answer 6

Generating heat

Question 7

The ability to respond to certain stimuli by producing action potentials impulses.

Answer 7

Excitability

Question 8

The ability of muscular tissue to contract forcefully when stimulated by an action potential.

Answer 8

Contractility

Question 9

The ability of muscular tissue to stretch, within limits, without being damaged.

Answer 9

Extensibility

Question 10

The ability of muscular tissue to return to its original length and shape after contraction or extension.

Answer 10

Elasticity

Question 11

Direction of muscle fibers
Shape
Action 
Number of origins
Location 
Origin and insertions

Answer 11

Naming criteria for skeletal muscles

Question 12

Within opposing pairs, one muscle

Answer 12

The prime mover agonist

Question 13

Stretches and yields to the effects of the prime mover.

Answer 13

Antagonist

Question 14

Prevents unwanted movements at intermediate joints or to otherwise aid the movement of the prime mover muscles

Answer 14

Synergistic

Question 15

Allow us to know where our head and limbs are located and how they are moving even if we are not looking at them, so that we can walk, type, dress without using our eyes.

Answer 15

Proprioceptive Sensations

Question 16

The proprietors in skeletal muscles that monitor changes in the length of skeletal muscles and participate in the stretch reflexes.

Answer 16

Muscle spindles

Question 17

Proprietors in skeletal muscles that lie within the tendon near its junction with a muscle.

Answer 17

Golgi tendon organ

Question 18

Fibers are smallest in diameter and thus are the least powerful types of muscle fibers.

Answer 18

Slow oxidative

Question 19

Fibers are intermediate in diameter between the other two types of fibers.

Answer 19

Fast oxidative-glycolytic fibers

Question 20

The inability of a muscle to sustain a contraction after prolonged activity.

Answer 20

Muscle fatigue

Question 21

Refers to the added oxygen, over and above resting consumption that is taken into the body after exercise.

Answer 21

Oxygen debt

Question 22

ATPase is the enzyme that hydrolyzes ATP into ADP(adenosine diphosphate) energizing the myosin head.

Answer 22

ATP hydrolysis

Question 23

The synapse between a somatic motor neuron and a skeletal muscle fiber.

Answer 23

Neuromuscular junction

Question 24

The energized myosin head attaches to the blinding site on actin and releases the previously hydrolyzed phosphate group.

Answer 24

Attachment of myosin to actin to form cross-bridges.

Question 25

Thin filaments are 8 nanometers in diameter and are composed of mostly protein

Answer 25

Actin

Question 26

Thick filaments are 16 nanometers in diameter and are composed of mostly protein

Answer 26

Myosin

Question 27

The contractile organelles of skeletal muscle.

Answer 27

Myofibrils