The fluid outside of a cell is called ________.
A. cytosol
B. intracellular fluid
C. nucleoplasm
D. extracellular fluid
E. cytoplasm
Answer: D
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Answer the following statements true (T) or false (F)
1. Vitreous humor is the thick fluid in the posterior chamber of the eye. 2. The potentially blinding condition called glaucoma can occur if the fluid pressure of the eye drops too low. 3. The optic disc is able to respond only to bright light. 4. The nerve impulse of the eye begins when light enters through the iris of the eye and ends in the occipital lobe of the brain. This is called the visual pathway. 5. The external ear has two parts, the auricle and the pinna.
Matching
A) D B) C C) E D) A 6) Efferent vessels. 7) Cortex. 8) Medullary cord. 9) Trabecula. 10) Medulla.
Which hormone increases the blood calcium level?
A. Calcitonin B. Thyroid hormones C. Growth hormone D. PTH
If a lever has a fulcrum at one end, has a tendon exerting an effort 5 cm distal to the fulcrum, and acts against a resistance another 6 cm distal to the effort, what is its mechanical advantage?
A. 0.45 B. 0.54 C. 0.83 D. 2.2 E. 11.0