Which of the following statements is correct about the structure of the heart wall?
A) The fibrous skeleton forms the bulk of the heart.
B) The myocardium is the layer of the heart wall that is made up of the cardiac muscle cells.
C) Connective tissue in the heart helps in conduction of the action potential.
D) The heart chambers are lined by endomysium.
B
Explanation:
A) The fibrous skeleton does not form the bulk of the heart.
C) Connective tissue in the heart does not help the conduction of action potentials in the heart.
D) The endocardium lines the chambers of the heart.
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Using the figure below, identify the labeled part.
1. Label A: ______________________________
2. Label B: ______________________________
3. Label C: ______________________________
4. Label D: ______________________________
5. Label E: ______________________________
6. Label F: ______________________________
7. Label G: ______________________________
8. Label H: ______________________________
9. Label I: ______________________________
10. Label J: ______________________________
11. Label K: ______________________________
12. Label L: ______________________________
1.3 Label M: ______________________________
14. Label N: ______________________________
15. Label O: ______________________________
16. Label P: ______________________________
17. Label Q: ______________________________
18. Label R: ______________________________
19. Label S: ______________________________
20. Label T: ______________________________
21. Label U: ______________________________
22. Label V: ______________________________
23. Label W: ______________________________
24. Label X: ______________________________
25. Label Y: ______________________________
26. Label Z: ______________________________
27. Label AA: ______________________________
28. Label BB: ______________________________
29. Label CC: ______________________________
30. Label DD: ______________________________
31. Label EE: ______________________________
Which of the following is NOT true of the bipolar method of recording the EEG?
A. The 2 main recording electrodes detect the movement of ions in the extracellular fluid of the cerebral cortex. B. The 2 main electrodes are placed on opposite sides of the head. C. The ground electrode is used as a reference point for the body's baseline voltage. D. The electrical potential difference is measured between the 2 main recording electrodes. E. All of these are true of the bipolar method of recording the EEG.
Asthma is
A) a collapsed lung. B) an acute condition resulting from unusually sensitive, irritated conducting airways. C) an obstructive tumor. D) characterized by fluid buildup in the alveoli. E) caused by Mycobacterium tuberculosis.
The process of ______ is important to change shapes of bones, adjust to bone stress, replace old bone matrix and to facilitate repair of broken bone
A. endochondral ossification B. appositional bone growth C. bone remodeling D. intramembranous ossification