Calcium is important in skeletal muscle contraction because it

1.	Detaches the myosin head from the actin filament
2.	Activates the myosin ATPase by binding on it
3.	Binds to troponin to remove the masking of active sites on actin for myosin
4.	Prevents the formation of bonds between the myosin cross bridges and the actin filament

The source of energy that can be directly used by muscle for contraction is:
1. GTP
2. ATP
3. Creatine phosphate
4. Glucose

Match type of synovial joint in Column I with correct example in Column II and select the correct answer from the codes given below:

Codes

ATPase activity is found in:

The membranous connective tissue closest to the individual muscle fiber in a skeletal muscle is called as:

The neurotransmitter released at the neuro-muscular junction is:
1. Epinephrine
2. Acetylcholine
3. Serotonin
4. GABA

Skeletal muscles are:

The bone in human body that does not articulate with any other bone would be:
1. hyoid
2. manubrium
3. patella
4. phalange

The vertebral column originally develops as a series of ______ vertebrae, but this number is eventually reduced to _________ vertebrae.

With respect to the red muscle fibers [Type I], the white muscle fibers [Type II] are richer in: