Cosmetology · Anatomy and Physiology

The deepest layer of the skin, made of fatty tissue that insulates and cushions the body, is the:

Correct answer

Subcutaneous layer (hypodermis)

  1. A Epidermis
  2. B Stratum corneum
  3. C Dermis
  4. D Subcutaneous layer (hypodermis)

Why this is the answer

The subcutaneous layer, also called the hypodermis, is the deepest layer of the skin. It is composed largely of fatty (adipose) tissue that insulates the body, stores energy, and cushions underlying structures. Above it lie the dermis (the living layer with vessels, nerves, and glands) and the epidermis (the outer protective layer). Recognizing the subcutaneous layer's composition and role — and its position as the deepest skin layer — is part of the foundational skin anatomy assessed on the exam.
Source: Scientific Concepts — Subcutaneous Layer

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About this topic: Anatomy and Physiology

Anatomy and physiology questions cover cells and tissues, the skeletal, muscular, nervous and circulatory systems, and specifically the bones, muscles and nerves of the head, face, arms and hands that salon services affect. This is one of 9 Scientific Concepts questions on anatomy and physiology, each with a full explanation on a single study page.

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