Chapter 6 Flashcards
Basic muscle types found in body
Skeletal
Cardiac
Smooth
Which muscle cells are elongated?
Skeletal and smooth
Muscle cell is AKA
Muscle fiber
What causes the contraction and shortening of muscle?
Movement of microfilaments
Myo-
Muscle
Mys-
Muscle
Sarco-
Flesh
Only consciously controlled muscle
Skeletal muscle
Most skeletal muscles are attached by ___ to bones
Tendons
Large, cigar shaped, stritrated, multinucleate
Skeletal muscle
Speed of contraction of skeletal muscles
Slow to fast
Speed of contraction of cardiac muscle
Slow
Speed of contraction of smooth muscle
Very slow
What controls cardiac muscle contractions?
Involuntary, pacemaker, nervous system, hormones
What controls smooth muscle contractions?
Involuntary, nervous system, hormones, chemicals, stretch
Rhythmic contractions (skeletal)?
No
Rhythmic contractions (cardiac)?
Yes
Rhythmic contractions (smooth)?
Yes, in some
Endomysium
Encloses single muscle fiber
Perimysium
Wraps around bundle of muscle fibers
Fascicle
Bundle of muscle fibers
Epimysium
Covers entire skeletal muscle
Fascia
Outside of epimysium
Epimysium blends into connective tissue attachments which are
Tendons
Aponeuroses