In which condition are the lungs infected with Mycobacterium and produce fibrous nodules around the bacteria, leading to progressive pulmonary fibrosis?
A. Pneumothorax
B. Rhinitis
C. Tuberculosis
D. Pneumonia
E. Dyspnea
Answer: C
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________ is the type of connective tissue that helps to cushion the ends of long bones.
A. Spongy bone B. Cartilage C. Bone marrow D. Synovium
Answer the following statements true (T) or false (F)
1. The papillary muscles contract after the other ventricular muscles so that they can take up the slack on the chordae tendineae before the full force of ventricular contractions sends blood against the AV valve flaps 2. An ECG provides direct information about valve function. 3. As pressure in the aorta rises due to atherosclerosis, more ventricular pressure is required to open the aortic valve. 4. The adjustment of blood flow to each tissue in proportion to its requirements at any point in time is termed autoregulation. 5. Arterial pressure in the pulmonary circulation is much higher than in the systemic circulation because of its proximity to the heart.
A powerful bronchoconstrictor released by mast cells is ________.
Fill in the blank(s) with the appropriate word(s).
In which of the following is rotational movement possible?
A. Pelvic joint B. Condylar joint C. Hinge joint D. Ball-and-socket joint