Anatomy
Name a bone in your arm
humerus, radius, ulna
What two proteins form a crossbridge in muscle?
actin and myosin
If a lever has the Load in the middle, what class is it?
Feedback from a coach would be defined as intrinsic or extrinsic
Extrinsic
the largest bone in the body
femur
What axis is associated with movement through the transverse plane
Longitudinal axis
This muscle fiber type is good for long, low intensity exercise
Type 1
What is impulse
Force applied over time
What are the 4 stages of human development
Infancy, childhood, adolescence, adulthood
What muscle allows dorsiflexion
tibialis anterior
Name a bone that is medial to all other bones
sternum
What chemical travels through the synaptic cleft to initiate muscular contraction
Acetylcholine
Name three ways an athlete could increase their stability
Get heavier
Widen base
Lower center of gravity
Shift line of gravity into incoming force
4 components of growth and development include:
C____________
P______________
S_____________
E_______________
Cognitive
Physical
Social
Emotional
What is the formula for cardiac output
Heart rate x stroke volume
This bone forms your lower jaw
mandible
What molecule is changed into lactic acid in the absence of oxygen
pyruvate
What are newtons three laws?
Law of inertia
F=MA
For every action there is an equal and opposite reaction
Feedback should be: P__________
S_____________
C_____________
T_______________
Positive
Specific
Constructive
Timely
3rd class levers are designed to maximize what?
Speed/range of motion
Name the four heads of the quadriceps muscle
Rectus Femoris, Vastus Lateralis, Vastus Medialis, Vastus intermedius
What is the name of the enzyme which transfers a phosphate group from Pcr to ADP
creatine kinase
Name 6 biomechanical Principles
Stability
Production of maximum force
Production of maximum velocity
Impulse
Direction of application of applied force
Production of angular motion
Conservation of angular motion
What are the three stages of skill acquisition
Cognitive, associative, autonomous
What does myoglobin do?
Transports oxygen within muscle cells