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Anatomy & Physiology
The Muscular System
1. Name the 4 functions of muscle tissue
a)_____________________________
b)_____________________________
c)_____________________________
d)_____________________________
2. Name 4 characteristics of muscle tissue
a)______________________________
b)____________________________
c)______________________________
d)______________________________
3. What are the 3 types of muscle tissue, and describe? (review)
a) _______________________-
b) _______________________-
c) _______________________-
4. Fill in the blanks relating to the properties of muscle tissue.
a) _____________________- respond to chemicals released from nerve cells.
b) _____________________-ability to shorten and generate force.
c) _____________________-ability to return to original shape after being stretched.
d) _____________________-ability to propagate electrical signals over membranes.
e) _____________________-ability to be stretched without damaging the tissue.
5. Describe origin and insertion and how they relate to muscle attachment sites.
a) origin-
b) insertion-
6. Fill in the blank with the appropriate number.
____spasm
____fasciculation
____tremor
____cramp
____tic
1. involuntary twitching of muscles normally under
voluntary control ie. eyelid
2. involuntary contraction of single muscles
3. a painful spasm
4. rhythmic, involuntary contraction of opposing muscle groups
5. involuntary, brief twitch of a motor unit visible under the skin
7.Locate on the following diagrams & generally describe the actions of the following skeletal
muscles:
Muscle
Frontalis
Orbicularis oculi
Orbicularis oris
Buccinator
Zygomaticus
Masseter
Temporalis
Sternocleidomastoid
Pectoralis major
Intercostal muscles
Rectus abdominus
Transversus abdominus
Internal oblique
External oblique
Trapezius
Action
Latissimus dorsi
Erector spinae
Deltoid
Biceps brachii
Triceps brachii
Iliopsoas (psoas major &
iliacus)
Gluteus maximus
Gluteus medius
Gluteus minimus
Adductor magnus
Adductor longus
Adductor brevis
Sartorius
Hamstring group (3)
biceps femoris
semitendinosus
semimembranosus
Quadriceps group (4)
vastus lateralis
vastus intermedius
vastus medius
rectus femoris
Tibialis anterior
Peroneal muscles
Gastrocnemius