Muscles Flashcards
The study of muscles is?
Myology
Tendons
Muscles to bones
Aponeurosis
A tendon that is flat and ribbonlike, a broad sheet of fibrous connective tissue that serves as a tendon to attach muscles to bone or fascia to bind muscles together.
Tendons are surrounded by what?
Tendon sheath
Fascia
Is a sheet of fibrous membrane that encloses muscles and separates them into groups
Ligaments
Bone to bone or bone to cartilage
Orgin
Less moveable. The end of the muscle
Insertion
Moves the muscle
Motor nerve
Causes muscle to move by stimulating a group of muscle fibers
A group of muscle cells is called what?
Motor or neuromotor unit
The plasma membrane of a muscle cell is called what?
Sarcolemma
The cytoplasm of a muscle cell is called what?
Sarcoplasm
Skeletal muscles
Controlled at will, striated
Ex: eyes, tongue, pharynx
Smooth muscle
Non striated, spindle-shaped fibers, not controllable at will.
Ex: stomach, intestines, uterus
Cardiac muscle
Involuntary striated muscle, heart
Prime movers
Actively produce a movement
Antagonists
Relaxing, opposite of prime movers
Synergists
Contract simultaneously with the prime movers to help execute a movement or steady a part
Azygous
Not paired
Bi, tri, quadri
Two, three, and four
Externus
External or outer
Gracilis
Slender
Latissimus
Wide
Longissimus
Long