Ch 7: Online 1 Flashcards
Muscular System
The more movable muscle attachment
Insertion
What connects muscle to bone?
Tendons made of fibrous CT
Bone is to periosteum as muscle is to what?
Fascia
What is the unit of contraction within a muscle cell?
Sarcomere
Reservior for calcium ions
Sarcoplasmic reticulum
What are the contracting proteins?
Actin and myosin
What muscle raises the lower jaw?
Masseter
What muscle shrugs the shoulder?
Trapezius
What muscle flexes the spinal column?
Rectus abdominus
What muscles pull ribs up and out?
External intercostals
What muscle abducts the humerus?
Deltoid
What muscle group extends the femur?
Hamstring
What muscle dorsiflexes the foot?
Tibialis anterior
What muscle extends the forearm?
Triceps brachii
What type of muscle attachment is insertion?
The more moveable muscle attachment