Multiple Choice
The pharyngotympanic (auditory) tube connects the ________ to the nasopharynx.
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1. Introduction to Anatomy & Physiology
Introduction to Organ Systems
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Which of the following tissue types or organs is NOT correctly matched with its embryonic germ layer of origin?
A
Lining of the digestive tract – Endoderm
B
Cardiac muscle – Mesoderm
C
Epidermis of the skin – Ectoderm
D
Neural tissue – Mesoderm
Verified step by step guidance1
Understand the concept of embryonic germ layers: During embryonic development, three primary germ layers form—ectoderm, mesoderm, and endoderm. Each layer gives rise to specific tissues and organs in the body.
Review the germ layer contributions: The ectoderm forms structures like the epidermis of the skin and neural tissue. The mesoderm forms structures like cardiac muscle, bones, and connective tissues. The endoderm forms the lining of the digestive and respiratory tracts.
Analyze the options provided: Match each tissue or organ to its correct germ layer based on the developmental contributions of the germ layers.
Identify the mismatch: Neural tissue is derived from the ectoderm, not the mesoderm. This makes the statement 'Neural tissue – Mesoderm' incorrect.
Conclude the reasoning: The correct answer is 'Neural tissue – Mesoderm' because neural tissue originates from the ectoderm, not the mesoderm.
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