Which of the following structures separates the lower lip from the chin?

A. Vermilion zone
B. Tubercle
C. Labial commissure
D. Labiomental groove
E. Nasolabial sulcus


Answer: B. Tubercle

Anatomy & Physiology

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Glial cells

A) only help maintain homeostasis of the brain's extracellular fluid. B) only provide structural and metabolic support. C) only guide neurons during growth and repair. D) provide structural and metabolic support and help maintain homeostasis of the brain's extracellular fluid. E) All of the answers are correct.

Anatomy & Physiology

__________ is involuntary, rhythmic movement of the eye

Fill in the blank(s) with correct word

Anatomy & Physiology

In a reversible reaction, when the rate of product formation is equal to the rate of reactant formation, the reaction is

A. a net decomposition reaction. B. a net synthesis reaction. C. in danger of exploding. D. stopped. E. at equilibrium.

Anatomy & Physiology

Which of the following is NOT a type of connective tissue proper?

A) dense connective tissue B) adipose tissue C) hyaline cartilage D) loose connective tissue

Anatomy & Physiology