Major skeletal muscle groups, muscle contraction physiology, and joint movement terminology for allied health students.
35 cards · basic cards · AI-written, checked twice. Edit anything.
- What movement does the biceps brachii primarily produce at the elbow?
- Flexion of the forearm at the elbow
- What movement does the triceps brachii primarily produce at the elbow?
- Extension of the forearm at the elbow
- What is the main action of the deltoid muscle?
- Abducts the arm at the shoulder
- What is the main action of the pectoralis major?
- Adducts and flexes the arm at the shoulder
- What is the main action of the latissimus dorsi?
- Extends and adducts the arm at the shoulder
- What are the main actions of the trapezius?
- Elevates, retracts, and rotates the scapula
- What is the main action of the rectus abdominis?
- Flexes the vertebral column (trunk)
- What is the main action of the gluteus maximus?
- Extends the hip
- What is the main action of the quadriceps femoris?
- Extends the knee
- What is the main action of the hamstring muscle group?
- Flexes the knee
- What is the main action of the gastrocnemius?
- Plantar flexes the foot at the ankle
- What is the main action of the tibialis anterior?
- Dorsiflexes the foot at the ankle
- What is the basic contractile unit of a skeletal muscle fiber called?
- The sarcomere
- What is the protein that makes up the thin filament in a sarcomere?
- Actin
- What is the protein that makes up the thick filament in a sarcomere?
- Myosin