Why does muscle account for such a large portion of your body mass?

Muscle is the part of the body that is attached to the bones and are responsible mostly for body's locomotion. There are three types of which: (1) skeletal, (2) cardiac, (3) smooth. 

This part of the body is compact and thus has a greater density because it occupies larger mass for a given volume. 

                         density = mass / volume

Because it has great density then, the mass is also large. Thus, this accounts for a large portion of the body mass. 

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.