Which of the following is largest and most easily recognized on the lateral portion of a cross-section at the level of the middle thoracic vertebrae?
A) esophagus
B) lungs
C) trachea
D) heart
E) thymus
B) lungs
You might also like to view...
What is a cross-bridge?
A. a protein found along the groove of the F-actin double helix B. a T tubule and two adjacent terminal cisternae C. the combination of myosin heads with active sites on actin molecules D. the movement of myosin head while attached to actin myofilament E. after exercise, the oxygen taken in that exceeds the oxygen required for resting metabolism
When two bones grow together across a joint to form a single bone, this is called a ________.
A. gomphosis B. synostosis C. suture D. symphysis E. syndesmosis
Match the nerve or plexus with its appropriate description.Tibial nerve
A. Innervates the iliopsoas, sartorius, and quadriceps femoris B. Innervates the muscles that adduct the thigh C. Innervates the anterior and lateral muscles of the leg D. Branches to form the medial and lateral plantar nerves E. Innervates muscles of the pelvic floor
Low dosages of aspirin inhibit clotting by blocking the formation of which of the following?
A) vitamin K B) factor X C) factor VIII D) thrombin E) thromboxane A2