Muscular System
The two primary proteins in myofilaments?
What is Actin and Myosin
The ion that ligand-gated channels carry
What is Na+
This enzyme is needed for muscular relaxation
What is Acetylcholinesterase
This is the "bag" that surrounds the heart
What is the Pericardium
This node of the heart fires spontaneously 90-100 times per minute
What is the Sinoatrial Node? (SA Node)
This structure surrounds the whole muscle
What is Epimysium
The ion that voltage-gated channels carry
What is K+
This type of muscle contraction means there is no change in length but the tension increases
What is Isometric
The names of the 4 chambers of the heart
What is the right atrium, left atrium, left ventricle, and right ventricle
These are the two types of contraction in the heart
What is systolic and diastolic
This carries nerve impulses to muscle contractile proteins
The proteins actin and myosin arrange into this compartment
What is the sarcomere
This type of muscle contraction is when theres a change of length but the tension is constant
What is Isotonic
This side of the heart pumps oxygenated blood to the body
What is the left side
When the heart cannot produce enough ATP, it makes its own ATP from this
What is creatine phosphate
The electrical circuit we send from our brain to our muscles
What is Action Potential
The ion thats inside of the cell during the resting potential of action potential
What is K+
These tunnels in the sarcolemma quickly spreads impulse to all areas of muscle fiber
What are T Tubules
These chamber walls are the thickest
What is the ventricular walls
This equation will give you the stroke volume of the cardiac cycle
What is EDV-ESV=SV? (End Diastolic Volume- End Systolic Volume= Stroke Volume)
The channel that needs a "key" to be opened
What are Ligand-gated channels
This is needed to open Na+ channels
What is Acetylcholine
These are the two regulatory proteins of muscle
What are troponin and tropomyosin
The process in which the heart relies on the ATP production
What is aerobic cellular respiration?
This equation will give you the cardiac output
What is SV x HR= CO? (Stroke Volume x Heart Rate= Cardiac Output)