When does the heart begin to beat?
A. At birth
B. By week 5 in the embryo
C. Early in fetal development
D. By week 3 in the embryo
E. By the fifth month of development
Answer: D
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You're designing a new drug to treat allergies. You'd like for your therapy to be able to dissolve through the lipid bilayers of cell membranes; therefore, ________ molecules will make excellent drug choices.
A. ionic B. polar C. radioactive D. electrolyte E. non-polar
What are the attachments of the fibularis longus?
a. Proximal lateral fibula to the medial foot b. Distal lateral fibula to the lateral foot c. Distal anterior fibula to the fifth metatarsal d. Proximal anterior tibia to the medial foot
Which of the following descriptions best matches the term ossicles?
A) move up and down when the stapes moves back and forth B) transmit movement of the tympanic membrane to the inner ear C) bending these produces receptor potential in hair cells D) tiny weights necessary for the static sense of equilibrium E) seal the oval window
Which of the following is a lubricant that keeps skin soft and moist and also contains chemicals that kill bacteria?
A) sweat B) sebum C) carotene D) melanin