Card Set Information
Plasma membrane of a muscle fiber
Cytoplasm of a muscle fiber.
Threadlike structures that run lengthwise though a fiber.
Thick filaments of the myofibril composed of myosin.
Thin filaments of the myofibril composed of actin.
Contractile unit of a muscle fiber
Dark region of the sarcomere that consists mostly of thick filaments and portions of the thin filaments that overlap the thick filaments.
Light region of the sarcomere that contains thin filaments but no thick filaments.
Region in the center of the A band of a sarcomere consisting of only thick filaments.
Dense material separating neighboring sarcomeres.
Center of the H zone formed by proteins that connect adjacent thick filaments.
Similar to the endoplasmic reticulum of the non-muscle cells responsible for storing calcium ions in relaxed muscle fibers.
Infoldings of sarcolemma that run perpendicular to and connect to the sarcoplasmic reticulum. open to the outside of muscle fiber
Cytoplasm of the muscle fiber
Several in each muscle fiber lying close to the sarcolemma - skeletal muscle
Alternating dar and light bands in each muscle fiber
Fibrous connective tissue that surrounds the entire skeletal muscle.
Fibrous connective tissue that surrounds a bundle (fasicle) of muscle fibers.
Fibrous connective tissue surrounding individual muscle fibers
This muscle has long, striated cells with multiple nuclei.
This muscle type function: contraction for voluntary muscles.
This muscle has branching, striated cells fused at plasma membranes, each with the single nucleus
This muscle type function: pumping blood though the circulatory system.
This muscle has long, spindle-shaped cells, each with a single nucleus.
This muscle type is found in hollow organs.
This muscle types function:involuntary contraction of muscle though internal passageways.
Epicranius is made up of which two muscles?
frontalis and occipitalis (forehead and back of head)
Buccinator (think buccal swab)
zygomaticus (major and minor)
levator labii superioris alaeque nasi
depressor anguli oris
depressor labii inferioris
flexor carpi radialis
flexor carpi ulnaris
flexor digitorum profundus
flexor digitorum superficialis
extensor carpi radialis longus
extensor carpi radialis brevis
extensor carpi ulnaris