Download Worksheet – The Muscular System

Quiz #2 Review – Skeletal Muscle Function
Name: _______________________________________________
May turn in on Quiz day for +2 QuizEC
You may print out and fill in OR just write your answers on NB
paper to turn in.
Functions of muscles. Fill in the blank – NO word bank
1. The two microfilaments that are the contractile elements within a muscle cell are called
___________________________ & ______________________________.
2. The 3 types of muscle tissue allow for ____________________ of the body and
organs.
3. Posture maintenance keeps the ____________________ in position to function
correctly.
4. ______% of all the energy used by a muscle escapes as heat to maintain body
temperature.
__________________________________________________________________
Muscle Interactions Functional characteristics of muscles: Define each of the
following terms.
1.
2.
3.
4.
5.
6.
7.
8.
Agonist/prime mover
Antagonist
Contractility
Elasticity
Excitability
Extensibility
Fixator
Synergist
__________________________________________________________________
Characteristics of Levers: List the Main advantage of each type of lever
a. 1st class lever
b. 2nd class lever
c. 3rd class lever
__________________________________________________________________
Golden Rules. Fill in the blank – NO word bank
1. All muscles cross at least ________________ joint
2. During contraction, the muscle ___________________ moves toward the
____________
3. Muscles are attached to at least __________ points
4. Muscles can only ____________ they never ___________
5. The ____________________ is the attachment to the immovable or less movable
bone
6. The ____________________ is the attachment to the movable bone
7. The bulk of the muscle typically lies _____________________to the joint crossed