A stem cell that can give rise to all tissues except the trophoblast cells of the placenta is called ________.
A. totipotent
B. multipotent
C. retropotent
D. pluripotent
Answer: D
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During surgery, general anesthesia inhibits the ________, causing unconsciousness in the patient
A) Basal nuclei B) Limbic system C) Hypothalamus D) Reticular system
Curvatures of the spine serve the body by ________
A) applying greater pressure to the intervertebral disks preventing them from slipping B) providing space for soft organs in the various body cavities C) giving additional springiness and flexibility to the spine which absorbs shock D) limiting the flexibility of the spine and preventing hyperextension
The anesthetic a dentist injects before drilling to clean and repair a cavity is done to block sensory impulses from a branch of what cranial nerve?
A) abducens B) facial C) trigeminal D) trochlear
Which of the following is NOT a structure within the visual axis?
-conjunctiva -lens -fovea -cornea