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Muscles
Axial and appendicular muscles
| Term | Definition |
|---|---|
| Which muscle is the primary muscle responsible for flexing the vertebral column and compressing abdominal contents? | Rectus abdominis |
| The sternocleidomastoid muscle has two heads. What is its primary action? | Flexion of the neck and rotation of the head to the opposite side |
| Name the deep muscle that forms the innermost layer of the abdominal wall | Transversus abdominis |
| Which muscle elevates the ribs during forced inspiration? | External intercostals |
| Which posterior neck muscle extends and rotates the head? | Splenius capitis |
| The deltoid muscle has three parts. What is the main function of the anterior fibers? | Flexion and medial rotation of the arm |
| Which muscle abducts the arm at the shoulder joint and is a common site for intramuscular injections? | Deltoid |
| The biceps brachii has two heads. What are its primary actions? | Flexion of the elbow and supination of the forearm |
| Which posterior forearm muscle extends the wrist and fingers? | Extensor digitorum |
| The gluteus maximus is the largest muscle in the body. What is its main action at the hip? | Extension and lateral rotation of the thigh |