26- The sebaceous glands are glands:A. TubularB. Acinar.C. TubuloacinarD. Alveolars.E. Exocrines

Break Down the Problem

1. Identify the Type of Glands: We need to classify the sebaceous glands based on their structure and function.
2. Consider the Options: There are five options given: A. Tubular, B. Acinar, C. Tubuloacinar, D. Alveolars, E. Exocrines.

Relevant Concepts

1. Structure of Glands:
   • Tubular: Glands with tubular secretory portions.
   • Acinar: Glands with a rounded secretory portion.
   • Tubuloacinar: Glands with a combination of tubular and acinar portions.
   • Alveolar: Similar to acinar but often referred to with a larger lumen.
   • Exocrine: Glands that secrete substances through ducts.

Analysis and Detail

1. Sebaceous Glands: These are a type of exocrine gland that typically has a branched acinar structure. They produce sebum, which lubricates the skin and hair.
2. Structural Classification: Given that sebaceous glands produce their secretion through ducts and have a structure that can be described as multi-lobed, they most closely fit the category of tubuloacinar glands.

Verify and Summarize

1. After analyzing the definitions and structure of sebaceous glands, they do not fit neatly into purely tubular or acinar categories but rather have characteristics of both.
2. Therefore, the best response from the given options that describes their structure is C. Tubuloacinar.

Final Answer

C. Tubuloacinar