What is the smallest level of structural organization in the human body?

A) tissue level B) organ level C) cellular level D) chemical level


Answer: D

Anatomy & Physiology

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Secretions that are discharged directly into the blood are characteristic of ________ glands.

A) exocrine B) merocrine C) endocrine D) apocrine E) holocrine

Anatomy & Physiology

Which mesentery connects the stomach to the inferior surface of the liver?

A) mesocolon B) mesentery proper C) greater omentum D) lesser omentum

Anatomy & Physiology

Pepsinogen, an inactive digestive enzyme, is secreted by the ________

A) parietal cells of the duodenum B) goblet cells of the small intestine C) Brunner's glands D) chief cells of the stomach

Anatomy & Physiology

Visual pigments are derivatives of

A) vitamin A. B) the vitreous body. C) the aqueous humor. D) vitamin K. E) vitamin E.

Anatomy & Physiology