Which spinal curvature develops as an infant begins to hold up his or her head?

a. lumbar
b. thoracic
c. cervical
d. sacral


Answer: c. cervical

Anatomy & Physiology

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Neutrons are uncharged particles found in the nucleus of an atom.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

The vagina

A) serves as a passageway for the elimination of menstrual fluids. B) is homologous to the male scrotum. C) is normally bacteria-free and has a neutral pH. D) forms the upper portion of the birth canal. E) is lined by an endometrium that regenerates after each menstrual cycle.

Anatomy & Physiology

Wetting the oral mucosa and stretching the digestive tract will cause ________ in thirst sensations.

A. a temporary interruption B. a tremendous increase C. an increase in blood osmolarity and a decrease D. an increase in blood osmolarity and an increase

Anatomy & Physiology

In the photomicrograph of a portion of thick skin shown below, which layer is the stratum basale?

a) A b) B c) D d) E e) F

Anatomy & Physiology