The linking of muscle excitation and contraction is caused by the release of what substance into the intracellular fluid of the muscle fibres?

The linking of muscle excitation and contraction is caused by the release of what substance into the intracellular fluid of the muscle fibres? 

A. Calcium ions

B. Lithium ions

C. Hydrogen ions

D. All of the above


Answer: A

What is the first step in excitation-contraction coupling?

What is the first step in excitation-contraction coupling? 

A. Each myosin filament pulls the actin filament it overlaps with towards its centre

B. An electrical signal travels over the surface of, and along, the muscle

C. Calcium ions expose active sites on the actin filaments, to which the myosin filaments immediately attach

D. In the neuromuscular junction, a chemical is released from the end of the nerve fibre, which causes a rapid change in the voltage of the muscle


Answer: D

How would you ensure that a proper consent is obtained?

How would you ensure that a proper consent is obtained? 

Answer: Usually put in writing, if verbal acknowledgement for an accepted procedure it is documented in the medical record.

What are same day surgery records?

What are same day surgery records? 

Answer: A patient can enter the hospital, have surgery and leave on the same day and all records are compressed to a short stay form.