Which of the following masks the active sites on actin when a skeletal muscle is relaxed?

1.	Tropomyosin	2.	Troponin
3.	Calmodulin	4.	Ubiquitin

During muscle contraction, the event shown in the following diagram describes:

1. cross bridge detachment
2. the power stroke or working stroke
3. cross bridge formation
4. cocking of myosin head

The total number of vertebrosternal and vertebrochondral ribs in human body respectively are:

The total number of phalanges in the human body are:

Progressive degeneration of skeletal muscle mostly due to genetic disorder is called:

Identify the incorrect statement:
1. The human skull is monocondylic
2. The human ribs are bicephalic
3. The human mandible is craniostylic
4. Patella is a sesamoid bone

During muscle contraction, when the myosin head releases ADP and iP it:
1. forms cross bridge with actin
2. pulls actin towards M-line
3. goes back to its relaxed state
4. gets detached from the cross bridge

What type of muscles do you expect to find in the inner walls of hollow visceral organs?

During relaxation of a skeletal muscle:

What protein is arranged along the length of actin filaments and is involved in regulation of skeletal muscle contraction?