PE Unit 4 - APEX UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS
muscles Contracting organs made from bundles of muscle tissue, which are responsible
for moving particular bones or substances of the body.
__________ is governed by muscular force locomotion
What are the three types of muscles in to body? smooth, cardiac, and skeletal
involuntary muscles Muscles that contract without conscious control. They are found in walls of
internal organs such as the stomach, intestines, bladder, and blood vessels.
(smooth and cardiac)
voluntary muscles Muscles that connect at either or both ends of a bone and move parts of the
skeleton. They can be controlled consciously. (skeletal)
superficial muscles Muscles that occur close to the skin and rest on top of other, deeper muscles.
deep muscles Muscles that exist deeper within the body, underneath superficial muscles.
contraction A shortening or tensing of a muscle or muscle fiber. The basic action of any
muscle
How many skeletal muscles in the body? 640. In an average sized person, the skeletal muscles make up about half the total
body weight,
fast-twitch fibers Parts of the muscle that react with speed and quickness.
slow-twitch fibers Parts of the muscle that provide strength and endurance.
glycogen Carbohydrate in glucose form stored in the liver and muscles, which is used as a
fuel during exercise.
anaerobic metabolism A process of converting glycogen or glucose into ATP to be used as a fuel for the
muscles. It is faster than aerobic metabolism, but is only good for a short period
of time.
lactic acid A water-soluble liquid produced in muscles, as a result of anaerobic glucose
metabolism.
muscles Contracting organs made from bundles of muscle tissue, which are responsible
for moving particular bones or substances of the body.
__________ is governed by muscular force locomotion
What are the three types of muscles in to body? smooth, cardiac, and skeletal
involuntary muscles Muscles that contract without conscious control. They are found in walls of
internal organs such as the stomach, intestines, bladder, and blood vessels.
(smooth and cardiac)
voluntary muscles Muscles that connect at either or both ends of a bone and move parts of the
skeleton. They can be controlled consciously. (skeletal)
superficial muscles Muscles that occur close to the skin and rest on top of other, deeper muscles.
deep muscles Muscles that exist deeper within the body, underneath superficial muscles.
contraction A shortening or tensing of a muscle or muscle fiber. The basic action of any
muscle
How many skeletal muscles in the body? 640. In an average sized person, the skeletal muscles make up about half the total
body weight,
fast-twitch fibers Parts of the muscle that react with speed and quickness.
slow-twitch fibers Parts of the muscle that provide strength and endurance.
glycogen Carbohydrate in glucose form stored in the liver and muscles, which is used as a
fuel during exercise.
anaerobic metabolism A process of converting glycogen or glucose into ATP to be used as a fuel for the
muscles. It is faster than aerobic metabolism, but is only good for a short period
of time.
lactic acid A water-soluble liquid produced in muscles, as a result of anaerobic glucose
metabolism.
