A&P lab Ch. 12

The actions of the abdominal wall muscles include extension and rotation of the trunk.

False Correct answer: flexion and rotation

The diaphragm changes from dome-shaped to flat when it contracts.

True

Match the muscle with the corresponding muscle group to which it belongs.

1. Levator veli palatini - Laryngeal elevators 2. Capitis - Semispinalis muscles 3. Longissimus - Erector Spinae 4. Diagastric - Suprahyoid muscles

Which of the following muscles are classified as muscles of facial expression?

1. Orbicularis oris 2. Zygomaticus major 3. Buccinator

Match the definition with the corresponding term.

1. Pertaining to the cheek - Buccal 2. An increase in joint angle - Extension 3. A broad flat tendon - Aponeurosis 4. The "groin" region - Inguinal

Which of the following muscles compose the anterior abdominal wall?

1. Rectus abdominis 2. Transversus abdominis 3. External oblique 4. External oblique 5. Internal oblique

Which of the following are classified as muscles of mastication?

1. Temporalis 2. Masseter

Which of the following is one of the three attachment points for the sternocleidomastiod?

1. The medial third of the clavicle 2. Mastoid process of the temporal bone 3. Sternum

Identify the largest and most important respiratory muscle that separates the thoracic from the abdominal cavity?

Diaphragm