Tissue - Muscle Flashcards
1
Q
Muscle tissues are
A
Highly cellular
Well vascularized
Responsible for most body movement
2
Q
Muscle fibers
A
Muscle cells
Elongates shape enhances contractile function
3
Q
Myofilaments
A
Contractile filaments
Actin & myosin
4
Q
Skeletal muscle
A
Packaged by connective tissue into skeletal muscles that are artsy he’s to bones
Voluntary muscle
Long and cylindrical w/ many nuclei
Striated reflects alignment of myofilaments
5
Q
Cardiac muscle
A
Only in heart walls
Striated but uninucleate
Branching cells join at intercalated discs (junctions)
Involuntary muscle
6
Q
Smooth muscle
A
No visible striations
Mainly in walls of hollow organs
Involuntary muscle
