A. Molecules
B. Cytoplasm
C. Organelles
D. Plasma membranes
Correct answer: C. Organelles
These structures perform specialized functions within the cell.
2. The smallest living units of structure and function in the body are:
A. Molecules
B. Cells
C. Organelles
D. Atoms
Correct answer: B. Cells
Cells are the basic units capable of carrying out all life processes.
3. The mediastinum contains all of the following except the:
A. Trachea
B. Venae cavae
C. Right lung
D. Esophagus
Correct answer: C. Right lung
The lungs are located in the pleural cavities, not the mediastinum.
,4. If your reference point is “farthest from the trunk of the body” versus “nearest to the
trunk,” where does the knee lie in relation to the ankle?
A. Distal
B. Proximal
C. Superficial
D. Inferior
Correct answer: B. Proximal
The knee is closer to the trunk than the ankle.
5. Which of the following does NOT describe anatomical position?
A. Head pointing forward
B. Body standing erect
C. Pinky is lateral as compared to the thumb
D. All of the above describe anatomical position
Correct answer: C. Pinky is lateral as compared to the thumb
In anatomical position, the thumb is lateral and the pinky is medial.
6. The number of abdominal regions is:
A. Three
B. Five
C. Seven
D. Nine
Correct answer: D. Nine
The abdomen is divided into nine regions to localize organs.
7. The reproductive system includes all of the following except the:
A. Testes
B. Ovaries
C. Ureter
, D. Penis
Correct answer: C. Ureter
The ureter belongs to the urinary system, not the reproductive system.
8. From smallest to largest, the correct levels of organization of the body are:
A. Organism, chemical, tissue, cellular, organ, system, organelle
B. Chemical, microscopic, cellular, tissue, organ, system, organism
C. Organism, system, organ, tissue, cellular, organelle, chemical
D. Chemical, organelle, cellular, tissue, organ, system, organism
Correct answer: D. Chemical, organelle, cellular, tissue, organ, system, organism
Body organization progresses from simple chemical components to the whole organism.
9. An x-ray technician is asked to make x-ray films of the liver. Which abdominopelvic
regions must be included?
A. Right hypochondriac, epigastric, and left hypochondriac
B. Right hypochondriac, right lumbar, and right iliac
C. Right iliac, hypogastric, and left iliac
D. Right lumbar, umbilical, and left lumbar
Correct answer: A. Right hypochondriac, epigastric, and left hypochondriac
The liver occupies primarily the right hypochondriac and epigastric regions.
10. An organization of many similar cells specialized to perform a certain function is called
a:
A. Tissue
B. Organism
C. System
D. Organ
Correct answer: A. Tissue
Tissues are groups of similar cells working together.