Bio lecture exam 3

Epimysium is what

• surrounds the skeletal muscles (aka Fascia)

• connective tissue that subdivides the muscle into fascicles

• surrounds muscle fibers that were subdivided from the fascicles

Perimysium is what

• surrounds the skeletal muscles (aka Fascia)

• connective tissue that subdivides the muscle into fascicles

• surrounds muscle fibers that were subdivided from the fascicles

Endomysium is what

• surrounds the skeletal muscles (aka Fascia)

• connective tissue that subdivides the muscle into fascicles

• surrounds muscle fibers that were subdivided from the fascicles

How does muscle attach to bone ---> via tendon ?

A band is

• dark, contains thick filaments (myosin)

• light area where actin and myosin don't overlap in relaxed fiber

• light, contains thin filaments (actin)

• where actins attach, length from __ disc to __ disc is Sarcomere

H band is

• dark, contains thick filaments (myosin)

• light area where actin and myosin don't overlap in relaxed fiber

• light, contains thin filaments (actin)

• where actins attach, length from __ disc to __ disc is Sarcomere

I band is

• dark, contains thick filaments (myosin)

• light area where actin and myosin don't overlap in relaxed fiber

• light, contains thin filaments (actin)

• where actins attach, length from __ disc to __ disc is Sarcomere

Z band is

• dark, contains thick filaments (myosin)

• light area where actin and myosin don't overlap in relaxed fiber

• light, contains thin filaments (actin)

• where actins attach, length from __ disc to __ disc is Sarcomere

Myosin(___?___), ___2___ and ___3___. Has ___4___ binding sites, has ___5___ binding sites, has a "___6__" point which allows it to swivel causes muscle contraction.

Myosin(___1___), ___?___ and ___3___. Has ___4___ binding sites, has ___5___ binding sites, has a "___6__" point which allows it to swivel causes muscle contraction.