9/13 Lecture

Question 1

Skeletal muscle characteristics

Answer 1

Excitable, contractile, extensible, and elasticity

Question 2

Functions of skeletal muscle

Answer 2

Produce movement, posture, and stabilize joints, produce or generate heat

Question 3

Smallest unit of contraction

Answer 3

Sarcomere

Question 4

Contractile proteins

Answer 4

Building blocks of protein

Question 5

Thick filament

Answer 5

Myosin

Question 6

Thin filament

Answer 6

Actin

Question 7

Tropomyosin

Answer 7

Long proteins strand that binds along the length of the actin filament

Question 8

Troponin

Answer 8

Protein complex found near the end of each tropomyosin complex

Question 9

Acetylcholine

Answer 9

Cause depolarization of the motor end plate, making the inside of the cells more positive

Question 10

Lots of positive ions lead to

Answer 10

Action potential

Question 11

Sarcoplasmic reticulum

Answer 11

Stores calcium

Question 12

Step 2

Answer 12

Calcium binds to troponin, active spots means binding spots

Question 13

Cross bridge

Answer 13

Myosin to actin

Question 14

Skeletal muscle pump

Answer 14

The assistance that contracting muscles provide to the circulatory system, which compress the veins which returns blood to the heart

Question 15

How important is it to train the muscles of respiration?

Answer 15

Endurance is repetitive contraction of breathing muscles, resistance is stabilization and intra-abdominal pressure

Question 16

Valsalva Maneuver

Answer 16

Increases intrathoracic pressure and slightly raises intraspinal pressure