Question

Please answer all 3 questions. I would really appreciate. Read the essay and answer all 3 questions please. Do not write your answer in the paper and upload. Please type the answer because it is easy to understand. Thanks.

QUESTION 1 Provide the following smooth muscle components to their homologous components in the skeletal muscle. Dense body Caveoli Calmodulin Slow wave potential QUESTION 2 Note the location of the caveoli. Based on their location and the presence of voltage sensitive calcium channels in the caveoli, what can you infer about the location of the high concentration of calcium that flows down its electrochemical gradient? QUESTION 3 Cardiac muscle are connected by dense concentrations of gap junctions called intercalated disks. What homologous term would be used to describe the manner of action potential conduction?

Answer 1

Q1.

Ans:

Dense bodies are composed of actin and their homologus component is anchor thin filaments.

Caveoli contains voltage sensitive calcium channels.

Calmodulin is a protein which takes on the regulatory role in smooth muscle

Slow wave potential are subthreshold potentials (small in magnitude to produce an action potential)

Q2.

Ans:

Location of caveoli: located in sarcolemma depressions on smooth muscles

If the calcium concentration is high, cross bridging can remain for longer period time which sustains contractions without utilizing ATP. E.g. Sphincters

Q3.

Ans: Spike potentials