Exam 31: Skeletons,Muscles,and Movement

Muscles work in pairs,because

Which of the following is a benefit of having an endoskeleton?

In human embryos,the skeleton starts out as cartilage and is later replaced by bone.

The ________ the surface area exposed to a medium,the smaller the amount of drag experienced.

In humans,red and white blood cells are made in

Some smooth muscle can contract as rapidly as skeletal muscle.

As seen in the digestive system and in other organs containing smooth muscle,one benefit of smooth muscle that sets it apart from skeletal muscle is that

Tendons are connective tissues that connect ________ to bone.

A myofibril

The heart of a moose contains both cardiac and smooth muscle.

Bone-to-bone connections in the human knee are cushioned by

Cardiac muscle

Following some knee injuries,patients experience a swelling due to an accumulation of fluid within the knee,a condition referred to as "water on the knee." Which of the following is a likely source of this fluid?

The stiffness of a hydrostat is generated by

Which of the following animals has a skeleton made of carbohydrates linked with proteins?

Where would you NOT expect to find spongy bone?

Ostriches are huge nonflying birds that can run at speeds of up to 40 miles per hour over long distances and maintain speeds of 30 miles per hour over longer distances.The legs of ostriches probably contain mostly ________ muscle fibers.

One reason cats survive falls from heights better than humans do is that

Which of the following is a likely explanation as to why terrestrial animals do NOT have a skeleton built entirely of cartilage?

Which of the following would play a role in movement as well as protection?