ATI RN
Introduction to Anatomy and Physiology Lesson 6.1 Study Questions Questions
Question 1 of 5
In anatomical position, the thumb is:
Correct Answer: A
Rationale: In anatomical position (standing, palms forward), the thumb is lateral, on the hand's outer side relative to the midline, not medial (B, inner), proximal (C, closer to attachment), or superficial (D, surface). Its lateral placement (radius side) aids opposition, a key human trait, making A correct.
Question 2 of 5
The thoracic cavity is separated from the abdominopelvic cavity by the:
Correct Answer: B
Rationale: The diaphragm separates thoracic (chest) from abdominopelvic cavities, a muscular dome, unlike mediastinum (A, chest divider), abdominal wall, sternum, or nonexistent septum. Anatomically, it regulates breathing, marking cavity boundaries, making E correct.
Question 3 of 5
A lung is located within the:
Correct Answer: B
Rationale: Lungs are in thoracic (chest), pleural (lung-specific), and ventral (anterior) cavities, not mediastinal (A, central), peritoneal (C, abdominal), or pericardial (D, heart). Anatomically, pleural cavities within thoracic (ventral subdivision) encase lungs, aligning with respiratory structure, confirming B.
Question 4 of 5
The nurse is to position a client in standard anatomical position. What is the best description of the standard anatomical position?
Correct Answer: A
Rationale: Standard anatomical position is standing, arms at sides, palms forward (supinated), per option AA. Lying , sitting (C, D) deviate prone or seated alters orientation. Anatomically, this posture standardizes directional terms (e.g., anterior), ensuring consistency in medical descriptions like the heart anterior to the spine making A the best description.
Question 5 of 5
Deoxyribonucleic acid (DNA), which is present in every human being, has which of the following as its main purpose?
Correct Answer: C
Rationale: DNA's main purpose is transmitting genetic material , per options C6-C9, passing genes to offspring via gametes. Transcription and translation are steps in protein synthesis, division control a subset. Anatomically, DNA in the nucleus encodes heredity e.g., eye color inheritance making C its primary role.