Epidermal ridges are created by:
a. The epidermal papillae
b. Mounds of papillary dermis arranged into dermal ridges
c. Gaps between collagen bundles in the reticular layer
d. Tight binding of the reticular layer to deeper structures

검증된 단계별 안내

Understand the structure of the skin: The skin consists of two main layers, the epidermis (outer layer) and the dermis (inner layer). The dermis is further divided into the papillary layer (upper portion) and the reticular layer (lower portion).

Learn about dermal ridges: Dermal ridges are formed by the arrangement of the papillary layer of the dermis. These ridges push up into the epidermis, creating the patterns known as epidermal ridges (e.g., fingerprints).

Focus on the papillary dermis: The papillary dermis contains mounds of connective tissue that form dermal ridges. These ridges are responsible for the patterns seen on the surface of the skin.

Eliminate incorrect options: a) Epidermal papillae is not a term used to describe the structures forming epidermal ridges. c) Gaps between collagen bundles in the reticular layer do not contribute to epidermal ridges. d) Tight binding of the reticular layer to deeper structures is unrelated to ridge formation.

Select the correct answer: The correct explanation is that epidermal ridges are created by mounds of papillary dermis arranged into dermal ridges, which push up into the epidermis.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Epidermal Ridges

Epidermal ridges are the raised patterns on the surface of the skin, commonly known as fingerprints. They are formed by the interaction between the epidermis and the underlying dermis, specifically through the arrangement of dermal papillae, which project into the epidermis, creating these unique patterns.

Dermal Papillae

Dermal papillae are small, nipple-like projections of the dermis that extend into the epidermis. They play a crucial role in enhancing the surface area for exchange of nutrients and waste, and they also contribute to the formation of epidermal ridges, influencing the unique patterns found on fingertips.

Reticular Layer of the Dermis

The reticular layer is the deeper layer of the dermis, composed of dense irregular connective tissue that provides strength and elasticity to the skin. It contains collagen and elastin fibers, which help anchor the dermis to underlying structures, but it is primarily the papillary layer that interacts with the epidermis to form ridges.

Epidermal ridges are created by:a. The epidermal papillaeb. Mounds of papillary dermis arranged into dermal ridgesc. Gaps between collagen bundles in the reticular layerd. Tight binding of the reticular layer to deeper structures