1) Check all that are components of the sympathetic innervation of the heart.
Check All That Apply
Cervical sympathetic ganglion
Spinal cord Spinal cord
Vagus nerve (CN X)
Cardiac nerve
Sympathetic postganglionic axon
2) Check all that occur during ventricular contraction.
Check All That Apply
The AV valves open to allow blood to enter the ventricles from the atria.
The semilunar valves remain closed to prevent backflow of blood into the ventricles.
The semilunar valves open to allow blood to flow into the large arteries.
The AV valves close to prevent backflow of blood into the atria.
3) Put the pattern of circulation into the correct order, beginning with the pulmonary circulation.
Blood enters the plumonary arteries and travels to the lungs.
Blood leaves the right side of the heart.
Blood enters the plmonary veins.
Blood enters the system arteries.
Blood delivers oxygen to the tissues, and then enters systematic veins.
Blood enters the left side of the heart.
4)Check all that are characteristics of cardiac muscle.
Check All That Apply
Cells are long and cylindrical.
Cells are short and branching.
Cells have multiple nuclei at the periphery of the cell.
Cells have one or two nuclei in the center of the cell.
They are composed of thick and thin filaments.
The functional contractile unit is the sarcomere.
1) Check all that are components of the sympathetic innervation of the heart.
Check All That Apply
Cervical sympathetic ganglion
Spinal cord Spinal cord
Vagus nerve (CN X)
Cardiac nerve
Sympathetic postganglionic axon
2) Check all that occur during ventricular contraction.
Check All That Apply
The AV valves open to allow blood to enter the ventricles from the atria.
The semilunar valves remain closed to prevent backflow of blood into the ventricles.
The semilunar valves open to allow blood to flow into the large arteries.
The AV valves close to prevent backflow of blood into the atria.
3) Put the pattern of circulation into the correct order, beginning with the pulmonary circulation.
Blood enters the plumonary arteries and travels to the lungs.
Blood leaves the right side of the heart.
Blood enters the plmonary veins.
Blood enters the system arteries.
Blood delivers oxygen to the tissues, and then enters systematic veins.
Blood enters the left side of the heart.
4)Check all that are characteristics of cardiac muscle.
Check All That Apply
Cells are long and cylindrical.
Cells are short and branching.
Cells have multiple nuclei at the periphery of the cell.
Cells have one or two nuclei in the center of the cell.
They are composed of thick and thin filaments.
The functional contractile unit is the sarcomere.